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Seed Health Status of
Farmer Saved Seeds
Speaker: Ranganatha G.K
Sr. M.Sc (Agri)
I.D.No: PAK 8241
Introduction
Seed is considered as a basic vital input for
agriculture development due to the fact that it ensures
grain production and adds new genetic resource to the
crop gene pool.
The productivity of crop is directly linked to the
quality of seed used, though management practices and
supplementary inputs exert profound influences. (Shetty.,
2000).
Though minimum standards for seed health
certification have been prescribed in India, farmers are
not yet aware of these standards. Use of seeds with poor
health status results lower plant density and yield per unit
3
4
Facts about
farmer saved seeds
Globally, around three quarters of the world
farmers save seeds for sowing from harvest to harvest
(Tunwar, 1988).
In India, out of 329 million hectare area, 120
million hectare area is under food crops , hardly 10-12
per cent area is grown with quality/certified seeds
(Meena Kumari et al., 2009),
Non availability of adequate quality seed forces
the farmers to use their own saved seed.
Farmers often use seed that have impurities and
contaminants which are infected with pathogens many
a times (Fujisaka et al., 1993).
5
Farmers rely on and use farm saved seeds to the extent
of 80 to 85%. Farm saved seeds is of poor quality interms of
germination, vigour, purity (physical & genetic), health etc.
Their continuous use affect the crop yield and quality.
Source: National Conference on Agriculture for Kharif Campaign , 2007-08.
In Andhra Pradesh, 85 per cent of the seed is being used
by the farmers of their own saved seeds or the seed that
bartered or exchanged with other farmers. (Meena Kumari et
al., 2009).
It has also been reported that farmers saved seed had the
maximum percentage of ‘off-type’ plants compared to that
produced by certified seed samples of rice, green gram and
wheat (Murali et al ., 2000).
For achieving higher productivity, use of quality seed
leading to highest germination is essential
6
7
A Case study in karnataka (Ground nut)
In Karnataka, 73 per cent of farmers use their own saved seeds
24 per cent of farmers exchange the seeds or buy the
seeds from other farmers
03 per cent of farmers buy the seeds from either public
or private companies
Generations of seed used by farmers in Karnataka
Generation Percentage
1 26.56
2 13.64
3 10.90
4 6.36
5 7.28
6 6.36
7 1.82
8 10.00
9 3.64
10 13.45
(Narayanaswamy et al., 1995)
8
State Own
harvest
Other
farmers
Private
trader
Govt.
Agency
Andhra
Pradesh
8 1 84 7
Bihar 15 2 77 6
Karnataka 5 1 73 20
Madhya
Pradesh
64 3 14 19
Rajasthan 69 6 13 12
Uttar
Pradesh
67 10 9 14
Mean 38 4 45 13
Source of maize seed used by the farmers of different states in India (per ce
(Text book on Principals of Seed Production and Quality Control, 2004)
9
Sl.No. CROP 2007-08 2008-09 2009-10 2010-11* 2011-12*
1 Paddy 29.0 30.0 31.0 33.0 35.0
2 Ragi 26.0 27.0 28.0 29.0 30.0
3 Jowar--Var. 23.0 23.5 24.0 25.0 25.0
4 Bajra-- Var 25.0 26.0 27.0 28.0 30.0
5 Wheat 18.0 18.5 19.0 19.5 20.0
6 Redgram 19.0 20.0 22.0 24.0 25.0
7 Greengram 19.0 20.0 22.0 24.0 25.0
8 Blackgram 19.0 20.0 22.0 24.0 25.0
9 Cowpea 19.0 20.0 22.0 24.0 25.0
10 Bengalgram 19.0 19.5 19.5 20.0 20.0
11 Groundnut 9.0 10.0 10.5 11.0 12.0
12 Sunflower--Var 23.0 24.0 24.5 25.0 25.0
13 Safflower 19.0 21.0 23.0 24.0 25.0
14 Soybean 28.0 29.0 31.0 33.0 35.0
15 Sesamum 8.5 9.0 9.5 10.0 10.0
16 Castor 8.5 9.0 9.5 10.0 10.0
17 Cotton--Var. 14.0 16.0 18.0 19.0 20.0
Seed Replacement Rates in
Karnataka
(www. seed net portal)
* Advance estimates
10
Crop
ALL INDIA
actual
2000-01
Paddy 20 %
Wheat 15%
Maize 20%
Pulses 15%
Seed Replacement Rates in India for major
crops
(www. seed net portal)
11
What makes farmers to use saved seeds
of previous crop harvest?
It’s the lack of awareness on the use of
“Quality Seeds” and source of
availability of the “Quality Seeds”.
(Meena Kumari et al.,2009)
Timely availability of quality seeds (???)
12
How the farmers save seeds for next planting season?
13
Storage structure used by farmers to save seeds
Wooden structure
On farm storage
Drum storage Bamboo bins
14
Under ground storage structure
15
Scientific storage structures
16
Which seeds can be saved?
Seeds can be saved to sow new crops in the future, but not
all seeds are suitable for saving.
Varieties suitable for seed saving include local varieties that
have been grown in one region for a very long time.
Self-pollinating crops (e.g., beans and peas)
Open-pollinated varieties of some cross-pollinating crops
(e.g., pepper, cucumber and carrot).
(AVRDC, 2005)
17
How to keep seeds pure?
Isolation in distance
Bagging
Caging
18
What is the best way to store seeds?
Seeds stored in air-tight containers to prevent them from
absorbing moisture
19
Impact of use of farm saved seeds
Increase in disease incidence
Pest (insect and microorganisms) attack during
storage which hinders the crop growth upon planting
Transmission of weed seeds which suppress the crop
growth
Lower yields/crop productivity
Decline of physical purity after harvest by admixtures
and in turn lowers the germination and vigour
20
Indigenous technologies or
Traditional storage practices for
saving seeds adopted by farmers
(Karthikeyan et al., 2008)
21
Red gram storage with common
salt
In this practice, about 200 gm of salt was
mixed for a kg of red gram grains manually.
These treated grains should be stored in
jute gunny bags after stitching.
As salt has abrasive action on insect skin
prevents its movement inside the storage
containers.
Farmers opinion: This practice stored red
gram grains for short-term duration of 6-8
months. Farmers perceived this practice to be
moderately effective and affordable in cost.
22
Ash seed treatment in sorghum
Ash, mixed with the sorghum (Sorghum
bicolor) seeds at the ratio of 1:4.
After the ash treatment, sorghum seeds
should be tied airtight in the jute gunny bags.
During storage, grains losses were reduced
by various insects, e.g. rice weevil(Sitophilus
oryzae), rodents,(Tatera indica) and mite
(Oligonychus indicus).
Farmers strongly believed that ash application controlled
these losses considerably up to an extent of 80%. Farmers
using this technology stored the sorghum grains for 6
months without any storage pest problems.
23
Ragi storage with neem leaves
The strong odour of neem
(Azadirachta indica) leaves keep the
storage pests like lesser grain
borers (Rhyzopertha dominica), saw
toothed beetle (Oryzaephilus
surinamemsis) and flat grain beetle
(Cryptolestes minutus) away by
repellent mechanism.
Being very cheap and simple most of
the farmer followed this technology to
get rid of storage pest than to relay on
costlier chemical treatments.
24
Storage of grains using
camphor
Farmers indigenously practiced
this simple method in grain storage.
In this practice, about 1gm of
camphor piece per 5 kg of grains was
placed as such in the jute gunny
bags.
A short-term storage of grains up to 3
months was possible with this traditional
storage method and after that the grains
were to be sun-dried and then kept
with fresh camphor pieces for
subsequent storage.
25
Storage of seeds with lime
Farmers traditionally followed a
practice of storing pulse grains along
with lime powder.
In this practice, dusting about 10
gm of lime per kg of grains. After
thorough mixing , storing in jute gunny
bags were followed.
The lime had a property of emitting
irritating odour that repells insects and
preventing the grains from damage. By
this way, grains could be stored for even
one year.
26
Storage of vegetable seeds with cow dung
Vegetable seeds such as ash gourd
(Benincasa hispida), bitter gourd
(Momordica charantia), bottle gourd
(Lagenaria siceraria), etc. are embedded in
cow dung and then dried under sun for 2-3
days.
After drying, the seeds are got to be
sticked on to the Varati. These Varaties then
stored in open / inside wooden boxes.
Farmers opinion: Vegetable seeds can be
stored by this method even up to one year.
Farmers believed that cow dung has
pesticidal property and immunostimulant
properties which could increase germination
and viability .
27
This practice was being followed from more than 35 yrs,
farmers store
the tamarind (Tamarindus indica) by mixing salt with it.
After harvest, tamarind was removed from its pods and then
stored in
earthen pots in layers and spreading of salt in between the
tamarind
layers.
For this practice, about 10 gm of salt was used for per kg of
tamarind
By this way of storage, storage pests like beetles and Indian
meal moth
(Plodia cautella) were prevented.
Storage of tamarind with common salt
28
Storage of grains with sweet
flag
This method was being practiced for
more than 40 yrs. Farmers practiced an
indigenous way of storing grains with
sweet flag (Acorus calamus.)
For treating 1 kg of grains, about 10
gm of sweet flag powder was used.
The grains could be stored
effectively for 6 months without any pest
attack. The strong odour emitted from
sweet flag acted as a repellant against all
the storage pests.
29
Seed village
A village, wherein trained group of farmers are involved in production 'of
seeds of various crops and cater to the needs of themselves, fellow farmers
of the village and farmers of neighboring villages in appropriate time and
at affordable cost is called "a seed village“.
Concept:
Organizing seed production in cluster (or) compact area
Replacing existing local varieties with new high yielding varieties.
Increasing the seed production
To meet the local demand, timely supply and at reasonable cost
Self sufficiency and self reliance of the village
Increasing the seed replacement rate
30
Features of seed village
Seed is available at the door steps of farms at an
appropriate time
Seed availability at affordable cost even lesser than
market price
Increased confidence among the farmers about the
quality because of known source of production
Producer and consumer are mutually benefited
Facilitates fast spread of new cultivars of different kinds
31
Advantages of Seed Village Concept
1. Solve the problem of isolation. Mainly in cross pollinated crops like
maize, sunflower where it required more Isolation distance the problem
will be solved by raising a single variety in a large area.
2. Mechanization is possible from sowing to harvesting
3. Post harvest handling of seed will be easy
.
4. Because of a single variety, the problem of varietal admixture during
processing, drying will be avoided
5. Seed certification official will cover large area per unit time
6. Totally , it reduces the cost of cultivation
7. Seeds produced will be with high genetic, physical purity
32
Recommendations of National Conference on Agriculture for
Kharif Campaign 2007-08
Farm saved seeds is of poor quality and their continuous use
affects their quality and consequently their yield. Therefore, need for
promoting and encouraging higher seed replacement rate is very much
essential by following ways:
(a) Training of farmers in seed production technologies, particularly hybrid
seeds.
(b) Supply of inputs like better quality seeds and parental lines to farmers
at subsidized rates and on easy terms.
(c) Support for creating infrastructure including irrigation facilities for
seed production.
(d) Support for acquisition of storage and seed processing facilities.
33
Research
Findings
34
Table 1: Effect of seed sorting and seed treatment on fungal infection on jute in
Bangladesh.
(Islam et al., 2001)
Table 2: Effect of seed sorting and seed treatment on fungal infection on jute when grown on field
35
Table 3: Effect of seed sorting and seed treatment on seed yield
of jute.
(Islam et al., 2001)
36
Table 4: Impact of weed seed mixture in seed health of Aus rice
(Fazlul Islam et al., 2003)
37
(Fazlul Islam et al., 2003)
Table 5: Seed infestation level of important rice pathogens in valley districts of Manipur.
Fungal
pathogens
Imphal East Imphal West Thuobal Bishnupur Average
across
districts
PF
(Max)
Infection
(%)
PF
(Max)
Infection(
%)
PF
(Max)
Infecti
on (%)
PF
(Max)
Infecti
on
(%)
Alternaria
padwickii
3 7.04 - 11 1 8.8 1 9.16 9.00
Curvularia
lunata
44 0.2 43 0.32 45 0.18 46 0.18 0.22
Fusarium
moniliforme
31 0.84 32 0.58 34 0.54 38 0.52 0.62
H. Oryzae 1 5.84 2 6.5 6 4.68 4 6.12 5.79
P. Oryzae 50 - 50 - 49 0.04 50 - 0.01
R. Solani 48 0.80 48 0.60 34 0.54 49 0.08 0.19
PF: Pathogen Free samples out of 50 samples (Thoithoi Singh and Mutum Singh, 2004)
Table 6 : Contamination level of paddy seeds with Sclerotia of Ustilaginoidea
virens
in valley districts of Manipur
Contamination
range (%)
No. of Seed samples
Imphal
East
Imphal West Thuobal Bishnupur Total(%)
0 44 47 47 47 92.5
1 4 3 2 3 6.0
2 - - 1 - 0.5
3 - - - - -
>4 2 - - - 1.0
Total 50 50 50 50 100
(Thoithoi Singh and Mutum Singh, 2004)
40
Table 7: Germination (%), emergence percent and germination rate of
seeds
stored in panicle form in sorghum (Ethopia).
(Firew Mekbib , 2008)
41
Table 8: Purity test of farmers’ seed lots of sorghum
(Ethopia).
(Firew Mekbib , 2008)
Table 9: Seed health status of farmers saved paddy seed with
respect to insect
infestation
Sl.No Name of
district
Villages
Surveyed
Seed
samples
collected
Per cent seed samples with
Pest
damage
<1.0%
Viability
>80.0%
Moisture
<13.0%
1. W. Godavari 9 93 35 62 98
2. Guntur 6 23 38 88 99
Pest damage : Rhizopertha dominica, Citotroga cereallela (Vardhani et al., 2009)
Table 10: Seed quality status of farmers vs certified samples of paddy in
Andhra Pradesh
Varieties Germination(%) Seedling length
(cm)
Seedling vigour
index
FS CS FS CS FS CS
IR 64 81 85 6.9 7.8 559 663
BPT 5204 84 90 8.6 10.1 722 900
Tellahamsa 80 82 6.09 6.2 495 508
MTU1001 88 96 8.1 8.7 713 835
MTU 1010 80 82 6.8 7.2 544 590
MTU 2067 88 90 7.1 8.9 625 801
PLA-1100 84 89 6.84 7.12 575 634
MTU-2077 88 92 7.1 8.2 625 653
Mean 84.12 88.25 7.19 8.0 607.2 698
(Meena Kumari et al., 2009)
FS: Farmer seeds
CS: Certified seeds
Table 11: The incidence of seed borne fungi (%) in farmer vs certified
samples of paddy
in Andhra Pradesh
Varieties Aspergillu
spp
Curvularia
spp
Fusarium
spp
Drechslera
spp
Cheatomium
spp
Alternaria
spp
Bacterium
spp
FS CS FS CS FS CS FS CS FS CS FS CS FS CS
IR 64 2.0 0.5 1.2 1.0 0.2 0.1 0.5 0.2 - - 3 - 0.1 -
BPT 5204 3.9 0.9 2.1 1.5 4.2 1.5 1.5 0.5 0.5 0.1 2. 0.1 2.0 -
Tellahams 2.0 - 1.0 - 0.9 - 2.0 0.5 - - 0. - 1.0 0.1
MTU1001 1.5 0.2 3.0 0.5 1.5 0.2 3.5 1.5 - - 1. 0.2 - -
MTU 1010 1.7 0.2 2.5 2.0 1.7 0.2 3.0 1.2 - - 0. 0.1 0.1 -
MTU 2067 2.8 1.1 0.5 0.2 1.1 - 3.2 - 0.1 - 0. 0.3 0.2 0.1
PLA-1100 2.2 1.3 1.5 1.2 0.5 - 1.2 - 0.5 0.3 - - 0.1 -
MTU-2077 1.5 1.0 0.5 0.1 0.1 - 1.1 0.1 0.7 0.2 0. 0.2 - -
Mean 2.2 0.6 1.5
3
0.8 0.8 0.2 2.0 0.5 0.2 0.07 1. 0.1 0.45 0.02
(Meena Kumari et al., 2009)
FS: Farmer
seeds
CS: Certified
seeds
conditions
(Farmers vs Certified samples) during Kharif, 2002, 2003 &
2004.
Varieties Disease incidence in the field (0-9)
Brown
spot
Narrow brown
leaf spot
Sheath rot Bacterial leaf
blight
FS CS FS CS FS CS FS CS
IR 64 3 1 1 0 1 1 3 1
BPT 5204 5 3 1 1 1 0 5 3
Tellahamsa 5 1 3 1 1 1 5 1
MTU1001 3 3 1 0 3 0 5 1
MTU 1010 5 3 1 1 1 1 3 3
MTU 2067 5 3 3 1 3 1 3 3
PLA-1100 3 1 3 1 5 1 5 3
MTU-2077 5 3 5 3 3 1 3 1
(Meena Kumari et al., 2009)
FS: Farmer
seeds
CS: Certified
seeds
Table 13: Prevalence of paddy bunt in different agro climatic zones of Andhra
Pradesh during 1993-2008
46
Agro
climatic
zones
Farmer’s saved seed Processed seed samples
Analyzed Infected Infected
samples
(%)
Max.
infection
ASCS ASCS
out of
infected
Analyzed Infecte
d
Infected
samples
(%)
Max.
infection
ASC
S
ASCS
out of
infected
Krishna
Godavari
Zone
752 360 47.9 2.28 21 5.83 661 136 20.5 1.22 2 1.47
Northern
Telengana
491 151 30.8 2.2 10 6.62 261 35 13.4 0.2 - -
Southern
Telangana
Zone
335 92 27.4 0.44 - - 600 78 13.0 0.12 - -
North
Coastal
Zone
15 4 26.6 0.10 - - - - - - - -
Southern
Zone
54 14 25.9 0.05 - - - - - - - -
Scarce
Rain fall
Zone
151 32 21.2 0.07 - - - - - - - -
Total 1798 653 29.9 2.28 31 - 1522 249 12.62 1.22 - -
(Meena Kumari et al.,
2009)
ASCS: Above Seed Certification
Standards
47
Farmer saved seeds Processed seeds
Varieties No of Samples Infected (%) No of Samples Infected (%)
Analysed Infected Analysed Infected
IR 64 324 194 59.87 205 50 24.40
MTU 2067 100 10 10.00 52 11 21.10
MTU 2077 58 10 17.24 129 12 9.30
MTU 1010 267 110 41.20 199 43 21.60
MTU 7029 105 18 10.75 98 15 17.90
JGL 1798 30 8 26.6 12 1 10.00
WGL 48684 8 1 12.50 4 1 25.00
MTU 5293 4 1 25.00 186 40 21.50
MTU 1001 127 28 22.04 186 40 21.50
BPT 5204 387 134 34.62 164 15 9.15
PLA 1100 26 3 11.53 43 15 34.90
Table 14: Prevalence of paddy bunt infection in different varieties of farmers saved
seeds and processed seed samples of paddy in Andhra pradesh (1993-
2000).
(Meena Kumari et al.,
2009)
48
Table 15: Quality Prediction of Carry-Over Soybean Seed (Glycine max L.
Merr. Cv. PS-
1092), collected from different local farm storage of Uttarakhand
(India)
(Indrakumar Singh and Chauhan, 2010)
49
Table 16: Health status of farmer saved paddy, sorghum,
sunflower, cowpea
seeds in Karnataka, India.
a) Per cent occurrence of mycoflora in different seeds samples of
paddy
(Hemanth Raj et al., 2007)
Gb - Gunny bag, K - Kanaja
Mb - Metal bin, Pb - Polythene
bag
50
Alternaria padwickii
Bipolaris oryzae
Microdochium oryzae
51
b) Per cent occurrence of mycoflora in different seeds samples of
sorghum
Hemanth Raj et al., 2007
Gb - Gunny bag, K - Kanaja
Mb - Metal bin, Pb - Polythene
bag
52
Acremonium strictum
Colletotrichum graminicola
Macrophomina phaseolina
53
c) Per cent occurrence of mycoflora in different seeds samples of
sunflower
(Hemanth Raj et al., 2007
Gb - Gunny bag, Mb - Metal bin, Pb -
Polythene bag
54
Alternaria zinniae
Botrydiplodia theobromae
Fusarium equiseti
55 Hemanth Raj et al., 2007
d) Per cent occurrence of mycoflora in different seeds samples
of cowpea
Cb - Cloth bag, Mb - Metal bin, Pb -
Polythene bag
56
Fusarium oxysporium
Macrophomina phaseolina
57
Summar
y
References Findings
Narayanaswamy
et al.(1995)
Reported that in Karnataka, farmers are using same seeds of groundnut,
generation after generation upto 10 years. Nearly 27 per cent of the farmers
are using first generation (purchased seeds) followed by 14 per cent second
generation and 13 per cent of the farmers are using even 10th generation
seeds.
Islam et al.(2001) Found that garlic extract and vitavax 200(0.4%) increased the yield of jute
by 47.38 per cent and 46.05 per cent respectively over the farmer saved
seeds (control) when grown in the net house and under field conditions seed
treatment with garlic extract and vitavax 200 (0.4%) increased the seed
yield of jute by 77.5 per cent and 82.50 per cent respectively over the farmer
saved seeds (control).
Indrakumar Singh
and Chauhan
(2003)
Evaluated the soybean seeds collected from different local farm storage of
Uttarakhand (India), results revealed that seed Sample D recorded the
highest purity (98.43%) per cent and imbibitions (7.29) with minimum
days taken for seedling emergence, seed Sample B recorded the maximum
germination (97%) per cent, PLS value (95.21%) .
Fazlul Islam et al.,
(2003)
Reported that contamination of five weed seeds viz., Echinochloa crusgalli,
E. colonum, Cyperus iria, Scirpus spp., C.difformis, in farmer saved paddy
seeds drastically reduces the yield.
58
Thoithoi Singh and
Mutum Singh
(2004)
Investigated that rice samples collected from four districts of Manipur revealed 40
fungal species belonging to 20 fungal genera were present, among fungal species
Alternaria padwickii (9.0%), Curvularia lunata(0.22%), Fusarium
moniliforme(0.62%), Helminthosporium oryzae(5.6%) and Rhizoctonia solani
(0.19%)were consistently isolated from all four districts (Imphal east, Imphal west,
Thoubal, Bishnpur).
Hemanth Raj
et al.(2005)
Revealed that seed mycoflora varied with respect to variety, storage structure and
location, the fungi viz.,Alternaris padwickii, Bipolaris oryzae, Microdochium oryzae, in
the paddy ranged from 0-50, 2-30, and 0-10 per cent respectively, in sunflower fungi
viz.,Alternaria zenniae, Verticilium albo-atrum, Fusarium equiseti, Botrydiplodia
theobrome, Macrophomina phaseolina, ranged from 0-12, 0-40, 0-10
, 0-30 and 0-30 per cent respectively.
Karthikeyan
et al.(2008)
Found that Indigenous storage practices has advantages over outside knowledge,
it has little and no cost and is readily available and suggested that storage of grains
and seeds without pest infestation is essential.
Firew Mekbib
(2008)
Noticed that in sorghum average germination for the three varieties tested was
82.8% in ethopian farmer saved seeds. The conventional purity (varietal) level of
98% was not met due to the dominant practice of varietal mixture in the region.
The dominant storage methods for seed were panicles form hung in the house
(74.4%) or as threshed seed stored in sacks (83.7%). Smoking of panicles (33.8%)
and chemicals (22.6%) for threshed seed were commonly used seed protection
measures.
59
Meena kumari
et al.(2009)
Reported that prevalence of kernel smut of rice was highest in
farmers seed lots collected from Krishna-Godavri zone
(47.99%) followed by northern Telangana zone (30.8%) as
compared to processed seed samples which recorded 20.5 per
cent and 13.4 per cent.
Meena kumari
et al.(2009)
Revealed that in paddy, seed borne fungi Drechslera spp (2.2%)
was maximum in farmer samples over certified samples (0.5%)
and also reported that germination percentage and seedling
vigour was lower in farmers samples (88-90%), (607) over
certified samples (80-92%), (698) respectively.
Vardhani
et al.(2009)
Observed that 35 per cent of paddy samples of farmer saved
seeds in west Godavari district and 38 per cent recorded
more than 1.0 per cent damage lesser grain borer
(Rhizopertha dominica) and angoumois grain moth (Citotroga
cerealella) failed to meet certification standards.
60
Conclusion
Farmer saved seeds are of poor quality, therefore
farmers need to have knowledge on seed borne pathogens,
storage structure and their importance, and also farmer
should be aware of difference between seed and grain.
If farmers are educated to take proper measures to
keep the seeds in good conditions including the health
status, the yield of such seeds can certainly be enhanced
further undoubtedly.
Simultaneously farmers must be advised by
institutions to use the processed certified seed for getting
maximum yield benefits.
61
Thank You

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Farmer Saved Seed Health and Storage Practices

  • 1. 1
  • 2. 2 Seed Health Status of Farmer Saved Seeds Speaker: Ranganatha G.K Sr. M.Sc (Agri) I.D.No: PAK 8241
  • 3. Introduction Seed is considered as a basic vital input for agriculture development due to the fact that it ensures grain production and adds new genetic resource to the crop gene pool. The productivity of crop is directly linked to the quality of seed used, though management practices and supplementary inputs exert profound influences. (Shetty., 2000). Though minimum standards for seed health certification have been prescribed in India, farmers are not yet aware of these standards. Use of seeds with poor health status results lower plant density and yield per unit 3
  • 5. Globally, around three quarters of the world farmers save seeds for sowing from harvest to harvest (Tunwar, 1988). In India, out of 329 million hectare area, 120 million hectare area is under food crops , hardly 10-12 per cent area is grown with quality/certified seeds (Meena Kumari et al., 2009), Non availability of adequate quality seed forces the farmers to use their own saved seed. Farmers often use seed that have impurities and contaminants which are infected with pathogens many a times (Fujisaka et al., 1993). 5
  • 6. Farmers rely on and use farm saved seeds to the extent of 80 to 85%. Farm saved seeds is of poor quality interms of germination, vigour, purity (physical & genetic), health etc. Their continuous use affect the crop yield and quality. Source: National Conference on Agriculture for Kharif Campaign , 2007-08. In Andhra Pradesh, 85 per cent of the seed is being used by the farmers of their own saved seeds or the seed that bartered or exchanged with other farmers. (Meena Kumari et al., 2009). It has also been reported that farmers saved seed had the maximum percentage of ‘off-type’ plants compared to that produced by certified seed samples of rice, green gram and wheat (Murali et al ., 2000). For achieving higher productivity, use of quality seed leading to highest germination is essential 6
  • 7. 7 A Case study in karnataka (Ground nut) In Karnataka, 73 per cent of farmers use their own saved seeds 24 per cent of farmers exchange the seeds or buy the seeds from other farmers 03 per cent of farmers buy the seeds from either public or private companies Generations of seed used by farmers in Karnataka Generation Percentage 1 26.56 2 13.64 3 10.90 4 6.36 5 7.28 6 6.36 7 1.82 8 10.00 9 3.64 10 13.45 (Narayanaswamy et al., 1995)
  • 8. 8 State Own harvest Other farmers Private trader Govt. Agency Andhra Pradesh 8 1 84 7 Bihar 15 2 77 6 Karnataka 5 1 73 20 Madhya Pradesh 64 3 14 19 Rajasthan 69 6 13 12 Uttar Pradesh 67 10 9 14 Mean 38 4 45 13 Source of maize seed used by the farmers of different states in India (per ce (Text book on Principals of Seed Production and Quality Control, 2004)
  • 9. 9 Sl.No. CROP 2007-08 2008-09 2009-10 2010-11* 2011-12* 1 Paddy 29.0 30.0 31.0 33.0 35.0 2 Ragi 26.0 27.0 28.0 29.0 30.0 3 Jowar--Var. 23.0 23.5 24.0 25.0 25.0 4 Bajra-- Var 25.0 26.0 27.0 28.0 30.0 5 Wheat 18.0 18.5 19.0 19.5 20.0 6 Redgram 19.0 20.0 22.0 24.0 25.0 7 Greengram 19.0 20.0 22.0 24.0 25.0 8 Blackgram 19.0 20.0 22.0 24.0 25.0 9 Cowpea 19.0 20.0 22.0 24.0 25.0 10 Bengalgram 19.0 19.5 19.5 20.0 20.0 11 Groundnut 9.0 10.0 10.5 11.0 12.0 12 Sunflower--Var 23.0 24.0 24.5 25.0 25.0 13 Safflower 19.0 21.0 23.0 24.0 25.0 14 Soybean 28.0 29.0 31.0 33.0 35.0 15 Sesamum 8.5 9.0 9.5 10.0 10.0 16 Castor 8.5 9.0 9.5 10.0 10.0 17 Cotton--Var. 14.0 16.0 18.0 19.0 20.0 Seed Replacement Rates in Karnataka (www. seed net portal) * Advance estimates
  • 10. 10 Crop ALL INDIA actual 2000-01 Paddy 20 % Wheat 15% Maize 20% Pulses 15% Seed Replacement Rates in India for major crops (www. seed net portal)
  • 11. 11 What makes farmers to use saved seeds of previous crop harvest? It’s the lack of awareness on the use of “Quality Seeds” and source of availability of the “Quality Seeds”. (Meena Kumari et al.,2009) Timely availability of quality seeds (???)
  • 12. 12 How the farmers save seeds for next planting season?
  • 13. 13 Storage structure used by farmers to save seeds Wooden structure On farm storage Drum storage Bamboo bins
  • 16. 16 Which seeds can be saved? Seeds can be saved to sow new crops in the future, but not all seeds are suitable for saving. Varieties suitable for seed saving include local varieties that have been grown in one region for a very long time. Self-pollinating crops (e.g., beans and peas) Open-pollinated varieties of some cross-pollinating crops (e.g., pepper, cucumber and carrot). (AVRDC, 2005)
  • 17. 17 How to keep seeds pure? Isolation in distance Bagging Caging
  • 18. 18 What is the best way to store seeds? Seeds stored in air-tight containers to prevent them from absorbing moisture
  • 19. 19 Impact of use of farm saved seeds Increase in disease incidence Pest (insect and microorganisms) attack during storage which hinders the crop growth upon planting Transmission of weed seeds which suppress the crop growth Lower yields/crop productivity Decline of physical purity after harvest by admixtures and in turn lowers the germination and vigour
  • 20. 20 Indigenous technologies or Traditional storage practices for saving seeds adopted by farmers (Karthikeyan et al., 2008)
  • 21. 21 Red gram storage with common salt In this practice, about 200 gm of salt was mixed for a kg of red gram grains manually. These treated grains should be stored in jute gunny bags after stitching. As salt has abrasive action on insect skin prevents its movement inside the storage containers. Farmers opinion: This practice stored red gram grains for short-term duration of 6-8 months. Farmers perceived this practice to be moderately effective and affordable in cost.
  • 22. 22 Ash seed treatment in sorghum Ash, mixed with the sorghum (Sorghum bicolor) seeds at the ratio of 1:4. After the ash treatment, sorghum seeds should be tied airtight in the jute gunny bags. During storage, grains losses were reduced by various insects, e.g. rice weevil(Sitophilus oryzae), rodents,(Tatera indica) and mite (Oligonychus indicus). Farmers strongly believed that ash application controlled these losses considerably up to an extent of 80%. Farmers using this technology stored the sorghum grains for 6 months without any storage pest problems.
  • 23. 23 Ragi storage with neem leaves The strong odour of neem (Azadirachta indica) leaves keep the storage pests like lesser grain borers (Rhyzopertha dominica), saw toothed beetle (Oryzaephilus surinamemsis) and flat grain beetle (Cryptolestes minutus) away by repellent mechanism. Being very cheap and simple most of the farmer followed this technology to get rid of storage pest than to relay on costlier chemical treatments.
  • 24. 24 Storage of grains using camphor Farmers indigenously practiced this simple method in grain storage. In this practice, about 1gm of camphor piece per 5 kg of grains was placed as such in the jute gunny bags. A short-term storage of grains up to 3 months was possible with this traditional storage method and after that the grains were to be sun-dried and then kept with fresh camphor pieces for subsequent storage.
  • 25. 25 Storage of seeds with lime Farmers traditionally followed a practice of storing pulse grains along with lime powder. In this practice, dusting about 10 gm of lime per kg of grains. After thorough mixing , storing in jute gunny bags were followed. The lime had a property of emitting irritating odour that repells insects and preventing the grains from damage. By this way, grains could be stored for even one year.
  • 26. 26 Storage of vegetable seeds with cow dung Vegetable seeds such as ash gourd (Benincasa hispida), bitter gourd (Momordica charantia), bottle gourd (Lagenaria siceraria), etc. are embedded in cow dung and then dried under sun for 2-3 days. After drying, the seeds are got to be sticked on to the Varati. These Varaties then stored in open / inside wooden boxes. Farmers opinion: Vegetable seeds can be stored by this method even up to one year. Farmers believed that cow dung has pesticidal property and immunostimulant properties which could increase germination and viability .
  • 27. 27 This practice was being followed from more than 35 yrs, farmers store the tamarind (Tamarindus indica) by mixing salt with it. After harvest, tamarind was removed from its pods and then stored in earthen pots in layers and spreading of salt in between the tamarind layers. For this practice, about 10 gm of salt was used for per kg of tamarind By this way of storage, storage pests like beetles and Indian meal moth (Plodia cautella) were prevented. Storage of tamarind with common salt
  • 28. 28 Storage of grains with sweet flag This method was being practiced for more than 40 yrs. Farmers practiced an indigenous way of storing grains with sweet flag (Acorus calamus.) For treating 1 kg of grains, about 10 gm of sweet flag powder was used. The grains could be stored effectively for 6 months without any pest attack. The strong odour emitted from sweet flag acted as a repellant against all the storage pests.
  • 29. 29 Seed village A village, wherein trained group of farmers are involved in production 'of seeds of various crops and cater to the needs of themselves, fellow farmers of the village and farmers of neighboring villages in appropriate time and at affordable cost is called "a seed village“. Concept: Organizing seed production in cluster (or) compact area Replacing existing local varieties with new high yielding varieties. Increasing the seed production To meet the local demand, timely supply and at reasonable cost Self sufficiency and self reliance of the village Increasing the seed replacement rate
  • 30. 30 Features of seed village Seed is available at the door steps of farms at an appropriate time Seed availability at affordable cost even lesser than market price Increased confidence among the farmers about the quality because of known source of production Producer and consumer are mutually benefited Facilitates fast spread of new cultivars of different kinds
  • 31. 31 Advantages of Seed Village Concept 1. Solve the problem of isolation. Mainly in cross pollinated crops like maize, sunflower where it required more Isolation distance the problem will be solved by raising a single variety in a large area. 2. Mechanization is possible from sowing to harvesting 3. Post harvest handling of seed will be easy . 4. Because of a single variety, the problem of varietal admixture during processing, drying will be avoided 5. Seed certification official will cover large area per unit time 6. Totally , it reduces the cost of cultivation 7. Seeds produced will be with high genetic, physical purity
  • 32. 32 Recommendations of National Conference on Agriculture for Kharif Campaign 2007-08 Farm saved seeds is of poor quality and their continuous use affects their quality and consequently their yield. Therefore, need for promoting and encouraging higher seed replacement rate is very much essential by following ways: (a) Training of farmers in seed production technologies, particularly hybrid seeds. (b) Supply of inputs like better quality seeds and parental lines to farmers at subsidized rates and on easy terms. (c) Support for creating infrastructure including irrigation facilities for seed production. (d) Support for acquisition of storage and seed processing facilities.
  • 34. 34 Table 1: Effect of seed sorting and seed treatment on fungal infection on jute in Bangladesh. (Islam et al., 2001) Table 2: Effect of seed sorting and seed treatment on fungal infection on jute when grown on field
  • 35. 35 Table 3: Effect of seed sorting and seed treatment on seed yield of jute. (Islam et al., 2001)
  • 36. 36 Table 4: Impact of weed seed mixture in seed health of Aus rice (Fazlul Islam et al., 2003)
  • 37. 37 (Fazlul Islam et al., 2003)
  • 38. Table 5: Seed infestation level of important rice pathogens in valley districts of Manipur. Fungal pathogens Imphal East Imphal West Thuobal Bishnupur Average across districts PF (Max) Infection (%) PF (Max) Infection( %) PF (Max) Infecti on (%) PF (Max) Infecti on (%) Alternaria padwickii 3 7.04 - 11 1 8.8 1 9.16 9.00 Curvularia lunata 44 0.2 43 0.32 45 0.18 46 0.18 0.22 Fusarium moniliforme 31 0.84 32 0.58 34 0.54 38 0.52 0.62 H. Oryzae 1 5.84 2 6.5 6 4.68 4 6.12 5.79 P. Oryzae 50 - 50 - 49 0.04 50 - 0.01 R. Solani 48 0.80 48 0.60 34 0.54 49 0.08 0.19 PF: Pathogen Free samples out of 50 samples (Thoithoi Singh and Mutum Singh, 2004)
  • 39. Table 6 : Contamination level of paddy seeds with Sclerotia of Ustilaginoidea virens in valley districts of Manipur Contamination range (%) No. of Seed samples Imphal East Imphal West Thuobal Bishnupur Total(%) 0 44 47 47 47 92.5 1 4 3 2 3 6.0 2 - - 1 - 0.5 3 - - - - - >4 2 - - - 1.0 Total 50 50 50 50 100 (Thoithoi Singh and Mutum Singh, 2004)
  • 40. 40 Table 7: Germination (%), emergence percent and germination rate of seeds stored in panicle form in sorghum (Ethopia). (Firew Mekbib , 2008)
  • 41. 41 Table 8: Purity test of farmers’ seed lots of sorghum (Ethopia). (Firew Mekbib , 2008)
  • 42. Table 9: Seed health status of farmers saved paddy seed with respect to insect infestation Sl.No Name of district Villages Surveyed Seed samples collected Per cent seed samples with Pest damage <1.0% Viability >80.0% Moisture <13.0% 1. W. Godavari 9 93 35 62 98 2. Guntur 6 23 38 88 99 Pest damage : Rhizopertha dominica, Citotroga cereallela (Vardhani et al., 2009)
  • 43. Table 10: Seed quality status of farmers vs certified samples of paddy in Andhra Pradesh Varieties Germination(%) Seedling length (cm) Seedling vigour index FS CS FS CS FS CS IR 64 81 85 6.9 7.8 559 663 BPT 5204 84 90 8.6 10.1 722 900 Tellahamsa 80 82 6.09 6.2 495 508 MTU1001 88 96 8.1 8.7 713 835 MTU 1010 80 82 6.8 7.2 544 590 MTU 2067 88 90 7.1 8.9 625 801 PLA-1100 84 89 6.84 7.12 575 634 MTU-2077 88 92 7.1 8.2 625 653 Mean 84.12 88.25 7.19 8.0 607.2 698 (Meena Kumari et al., 2009) FS: Farmer seeds CS: Certified seeds
  • 44. Table 11: The incidence of seed borne fungi (%) in farmer vs certified samples of paddy in Andhra Pradesh Varieties Aspergillu spp Curvularia spp Fusarium spp Drechslera spp Cheatomium spp Alternaria spp Bacterium spp FS CS FS CS FS CS FS CS FS CS FS CS FS CS IR 64 2.0 0.5 1.2 1.0 0.2 0.1 0.5 0.2 - - 3 - 0.1 - BPT 5204 3.9 0.9 2.1 1.5 4.2 1.5 1.5 0.5 0.5 0.1 2. 0.1 2.0 - Tellahams 2.0 - 1.0 - 0.9 - 2.0 0.5 - - 0. - 1.0 0.1 MTU1001 1.5 0.2 3.0 0.5 1.5 0.2 3.5 1.5 - - 1. 0.2 - - MTU 1010 1.7 0.2 2.5 2.0 1.7 0.2 3.0 1.2 - - 0. 0.1 0.1 - MTU 2067 2.8 1.1 0.5 0.2 1.1 - 3.2 - 0.1 - 0. 0.3 0.2 0.1 PLA-1100 2.2 1.3 1.5 1.2 0.5 - 1.2 - 0.5 0.3 - - 0.1 - MTU-2077 1.5 1.0 0.5 0.1 0.1 - 1.1 0.1 0.7 0.2 0. 0.2 - - Mean 2.2 0.6 1.5 3 0.8 0.8 0.2 2.0 0.5 0.2 0.07 1. 0.1 0.45 0.02 (Meena Kumari et al., 2009) FS: Farmer seeds CS: Certified seeds
  • 45. conditions (Farmers vs Certified samples) during Kharif, 2002, 2003 & 2004. Varieties Disease incidence in the field (0-9) Brown spot Narrow brown leaf spot Sheath rot Bacterial leaf blight FS CS FS CS FS CS FS CS IR 64 3 1 1 0 1 1 3 1 BPT 5204 5 3 1 1 1 0 5 3 Tellahamsa 5 1 3 1 1 1 5 1 MTU1001 3 3 1 0 3 0 5 1 MTU 1010 5 3 1 1 1 1 3 3 MTU 2067 5 3 3 1 3 1 3 3 PLA-1100 3 1 3 1 5 1 5 3 MTU-2077 5 3 5 3 3 1 3 1 (Meena Kumari et al., 2009) FS: Farmer seeds CS: Certified seeds
  • 46. Table 13: Prevalence of paddy bunt in different agro climatic zones of Andhra Pradesh during 1993-2008 46 Agro climatic zones Farmer’s saved seed Processed seed samples Analyzed Infected Infected samples (%) Max. infection ASCS ASCS out of infected Analyzed Infecte d Infected samples (%) Max. infection ASC S ASCS out of infected Krishna Godavari Zone 752 360 47.9 2.28 21 5.83 661 136 20.5 1.22 2 1.47 Northern Telengana 491 151 30.8 2.2 10 6.62 261 35 13.4 0.2 - - Southern Telangana Zone 335 92 27.4 0.44 - - 600 78 13.0 0.12 - - North Coastal Zone 15 4 26.6 0.10 - - - - - - - - Southern Zone 54 14 25.9 0.05 - - - - - - - - Scarce Rain fall Zone 151 32 21.2 0.07 - - - - - - - - Total 1798 653 29.9 2.28 31 - 1522 249 12.62 1.22 - - (Meena Kumari et al., 2009) ASCS: Above Seed Certification Standards
  • 47. 47 Farmer saved seeds Processed seeds Varieties No of Samples Infected (%) No of Samples Infected (%) Analysed Infected Analysed Infected IR 64 324 194 59.87 205 50 24.40 MTU 2067 100 10 10.00 52 11 21.10 MTU 2077 58 10 17.24 129 12 9.30 MTU 1010 267 110 41.20 199 43 21.60 MTU 7029 105 18 10.75 98 15 17.90 JGL 1798 30 8 26.6 12 1 10.00 WGL 48684 8 1 12.50 4 1 25.00 MTU 5293 4 1 25.00 186 40 21.50 MTU 1001 127 28 22.04 186 40 21.50 BPT 5204 387 134 34.62 164 15 9.15 PLA 1100 26 3 11.53 43 15 34.90 Table 14: Prevalence of paddy bunt infection in different varieties of farmers saved seeds and processed seed samples of paddy in Andhra pradesh (1993- 2000). (Meena Kumari et al., 2009)
  • 48. 48 Table 15: Quality Prediction of Carry-Over Soybean Seed (Glycine max L. Merr. Cv. PS- 1092), collected from different local farm storage of Uttarakhand (India) (Indrakumar Singh and Chauhan, 2010)
  • 49. 49 Table 16: Health status of farmer saved paddy, sorghum, sunflower, cowpea seeds in Karnataka, India. a) Per cent occurrence of mycoflora in different seeds samples of paddy (Hemanth Raj et al., 2007) Gb - Gunny bag, K - Kanaja Mb - Metal bin, Pb - Polythene bag
  • 51. 51 b) Per cent occurrence of mycoflora in different seeds samples of sorghum Hemanth Raj et al., 2007 Gb - Gunny bag, K - Kanaja Mb - Metal bin, Pb - Polythene bag
  • 53. 53 c) Per cent occurrence of mycoflora in different seeds samples of sunflower (Hemanth Raj et al., 2007 Gb - Gunny bag, Mb - Metal bin, Pb - Polythene bag
  • 55. 55 Hemanth Raj et al., 2007 d) Per cent occurrence of mycoflora in different seeds samples of cowpea Cb - Cloth bag, Mb - Metal bin, Pb - Polythene bag
  • 57. 57 Summar y References Findings Narayanaswamy et al.(1995) Reported that in Karnataka, farmers are using same seeds of groundnut, generation after generation upto 10 years. Nearly 27 per cent of the farmers are using first generation (purchased seeds) followed by 14 per cent second generation and 13 per cent of the farmers are using even 10th generation seeds. Islam et al.(2001) Found that garlic extract and vitavax 200(0.4%) increased the yield of jute by 47.38 per cent and 46.05 per cent respectively over the farmer saved seeds (control) when grown in the net house and under field conditions seed treatment with garlic extract and vitavax 200 (0.4%) increased the seed yield of jute by 77.5 per cent and 82.50 per cent respectively over the farmer saved seeds (control). Indrakumar Singh and Chauhan (2003) Evaluated the soybean seeds collected from different local farm storage of Uttarakhand (India), results revealed that seed Sample D recorded the highest purity (98.43%) per cent and imbibitions (7.29) with minimum days taken for seedling emergence, seed Sample B recorded the maximum germination (97%) per cent, PLS value (95.21%) . Fazlul Islam et al., (2003) Reported that contamination of five weed seeds viz., Echinochloa crusgalli, E. colonum, Cyperus iria, Scirpus spp., C.difformis, in farmer saved paddy seeds drastically reduces the yield.
  • 58. 58 Thoithoi Singh and Mutum Singh (2004) Investigated that rice samples collected from four districts of Manipur revealed 40 fungal species belonging to 20 fungal genera were present, among fungal species Alternaria padwickii (9.0%), Curvularia lunata(0.22%), Fusarium moniliforme(0.62%), Helminthosporium oryzae(5.6%) and Rhizoctonia solani (0.19%)were consistently isolated from all four districts (Imphal east, Imphal west, Thoubal, Bishnpur). Hemanth Raj et al.(2005) Revealed that seed mycoflora varied with respect to variety, storage structure and location, the fungi viz.,Alternaris padwickii, Bipolaris oryzae, Microdochium oryzae, in the paddy ranged from 0-50, 2-30, and 0-10 per cent respectively, in sunflower fungi viz.,Alternaria zenniae, Verticilium albo-atrum, Fusarium equiseti, Botrydiplodia theobrome, Macrophomina phaseolina, ranged from 0-12, 0-40, 0-10 , 0-30 and 0-30 per cent respectively. Karthikeyan et al.(2008) Found that Indigenous storage practices has advantages over outside knowledge, it has little and no cost and is readily available and suggested that storage of grains and seeds without pest infestation is essential. Firew Mekbib (2008) Noticed that in sorghum average germination for the three varieties tested was 82.8% in ethopian farmer saved seeds. The conventional purity (varietal) level of 98% was not met due to the dominant practice of varietal mixture in the region. The dominant storage methods for seed were panicles form hung in the house (74.4%) or as threshed seed stored in sacks (83.7%). Smoking of panicles (33.8%) and chemicals (22.6%) for threshed seed were commonly used seed protection measures.
  • 59. 59 Meena kumari et al.(2009) Reported that prevalence of kernel smut of rice was highest in farmers seed lots collected from Krishna-Godavri zone (47.99%) followed by northern Telangana zone (30.8%) as compared to processed seed samples which recorded 20.5 per cent and 13.4 per cent. Meena kumari et al.(2009) Revealed that in paddy, seed borne fungi Drechslera spp (2.2%) was maximum in farmer samples over certified samples (0.5%) and also reported that germination percentage and seedling vigour was lower in farmers samples (88-90%), (607) over certified samples (80-92%), (698) respectively. Vardhani et al.(2009) Observed that 35 per cent of paddy samples of farmer saved seeds in west Godavari district and 38 per cent recorded more than 1.0 per cent damage lesser grain borer (Rhizopertha dominica) and angoumois grain moth (Citotroga cerealella) failed to meet certification standards.
  • 60. 60 Conclusion Farmer saved seeds are of poor quality, therefore farmers need to have knowledge on seed borne pathogens, storage structure and their importance, and also farmer should be aware of difference between seed and grain. If farmers are educated to take proper measures to keep the seeds in good conditions including the health status, the yield of such seeds can certainly be enhanced further undoubtedly. Simultaneously farmers must be advised by institutions to use the processed certified seed for getting maximum yield benefits.