SED PRODUCTION OF PADDY

1. TOPIC :- SEED PRODUCTION OF PADDY
Ranjeet maurya

2. INTRODUCTION
Rice is one of the most important food crops in the world and it is the stable
food for over 2.7 billion people. In India, area under rice is 44.6 m ha with total
output of 80 million tonnes (paddy) with an average productivity of 1855 kg/ha.
 It is grown in almost all the states.
 West Bengal, Uttar Pradesh, Madhya Pradesh, Bihar, Orissa, Andhra
Pradesh, Assam, Tamilnadu, Kerala, Punjab, Maharashtra and Karnataka are
major rice growing states and contribute to total 92% of area and production.
Botanical name :- Oryza sativa
Family :- poaceae
Chromosome no. :- 2n=24
Origin :- south east asia

3. FLORALBIOLOGY

4. Growth stages and optimum temperature ranges
Stage Optimum temperature (°C )
Germination 20-35
Seedling emergence 25-30
Rooting 25-28
Leaf elongation 31
Tillering 25-31
Panicle initiation 15-30
Anthesis 30-33
Ripening 20-25

5. Rice is a crop of tropical climate. However, it is also grown
successfully in humid to sub-humid regions under subtropical and
temperate climate
CLIMATE
SOIL :- Loam and Sandy loam
PH :-5.5-6.5
SEED RATE
Brod costing :- 100kg/ha.
Drilling :- 60kg/ha.
Hybrid :- 15kg/ha.
Dapongmethod :- 1.5-3kg/ha.

7. Nurseary management
paddy nursery is primarily based on three fundamental components:
 the selection of good quality seeds,
 the use of proper soil mixtures
, and proper application of fertilizers.
Fetilizer mnagement
(i) High Yielding Early Maturing NPK @ 120:60:60
(ii) High Yielding Medium Maturity NPK @ 150:60:60
(iii) Scented paddy (dwarf) NPK @ 120:60:60

8. irrigation
Average Water requirement – 1100 mm
Average Water requirement (SRI) – 700 mm
The daily consumptive use of rice varies from 6-10 mm and
total water is ranges from 1100 to 1250 mm depending upon the
agro climatic situation, duration of variety and characteristics of
the soils.

9. Spacing method
Row ×Plant
short 20 ×10 cm.
medium 20 ×15 cm.
long 20 ×20 cm.
Hybrid seed production
Foundation seed cirtifiede seed
3 meters 3 meters

10. varieties
Pant Paddy-10, Pant Paddy-4, Sarju-52, Narendra-359,
Narendra-2064, Narendra Dhan-2064, Pusa-44, and PNR-381.
IR -8. IR-20, IR-26 ,28, 30, JYA
PHB-71 ,AJAY , RAJA LAXMI etc.
Disease
. Brown spot of Paddy:
The Cochliobolus miyabeanus fungus causes it.
Formerly referred to as Helminthosporium oryzae. In all stages
of growth, the fungus affects the plant from seedling to the final
stage.
Carbendazim, Prodione by treating the seats for 10 to 12 minutes in hot water
at 53 to 54 degrees Celsius before planting to control the primary infection that
may occur at the seedling stage.

12. Insect pest
Rice stem borers
l The most common rice insect in Malaysia, Chilo polychrysus
(Meyrick) (Lepidoptera: Pyralidae), bore into the rice stems,
usually killing the stems.
e.g. 1% of tillers. This has been determined in extensive surveys
conducted in major rice growing regions in Malaysia.

14. Harvesting
Harvesting is the process of collecting the mature rice crop from
the field.
 Paddy harvesting activities include reaping, stacking, handling,
threshing, cleaning, and hauling.
 These can be done individually or a combine harvester can be
used to perform the operations simultaneously.
Yield
Paddy yield per hectare- 5 to 8 tonnes
After husks separation- 4 to 7 tonnes