The document is a presentation on the production technology of guava in Bangladesh. It discusses guava varieties commonly grown in Bangladesh, climate and soil requirements, propagation methods, cultural practices like manuring, pest and disease management, harvesting, and uses. The presentation provides information on major guava growing areas in Bangladesh, the economic importance of guava production, and concludes with emphasizing the importance of guava preservation.

1. Welcome
to
Our
Presentation
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2. About Ourselves
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Ripon Kumar Mondal 15109049
Sumaya Shemu 15109014
Abdul Hadi 15109005
Denesh Tanchangaya 15109033
Sazib Akan 15109040

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Production Technology of Guava

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5. Outline..
 Introduction
 Growing areas in Bangladesh
 Economic Importance
 Varieties
 Climate Requirement
 Land preparation
Planting method
Manuring and Fertilization
Intercultural operations
Harvesting & Yield
Post Harvest Management
Common Pests & Diseases
Management
Uses
 Conclusion
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6. Introduction
 Common name:
Guava
 Scientific name:
Psidium guajava L.
 Family: Myrtaceae
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Guava is a common tropical fruits cultivated and enjoyed in
many tropical and subtropical regions. Psidium guajava is a
small tree in the Myrtle family (Myrtaceae), native
to Mexico, Central America, and northern South America.

7. Growing areas in Bangladesh
• In Bangladesh, it is grown in all the
areas but specially ,
 Themajor guava growing areas are-
• Barisal,Pabna,Dhaka,Rajshahi,Chittagong,
& Khulna.
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8. Economic Importance
• The fruit is a good source of vitamin C, pectin, calcium and
phosphorus.
• The fruit is used for the preparation of processed products like
jams, jellies and nectar.
• Guava jelly puree is very popular for its attractive purplish-red
colour, pleasant taste and aroma.
• Good quality salad can be prepared from the shell (with or without
seed core )of ripe fruits.
• Leaves of guava are used for curing diarrhea and also for dyeing
and tanning.
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9. Allahabad
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Safeda
Varieties

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12. Commercial Varieties
 Mainly three types of guava are cultivated
commercially.
 Kazi Peara (guava)
 Bari Peara (BARI, 2003)
 Thai peara
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Kazi Peara

13. Thai peara
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Cont…….
Bari Peara

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15. Climate Requirement
• Guava grown under tropical and subtropical climatic
zones.
• young plants are susceptible to drought and cold
conditions.
• In areas with distinct winter season, the yield tends
to increase and quality improves.
• High temperature at the time of fruit development
can cause fruit drop.
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16. Soil Requirements
Well drained, deep loamy ,friable soils are best
for guava cultivation.
It can be grown in wide range of soils from
heavy clay to very sandy in nature.
River basins are very well suited for growing
Guava fruits
Ideal Soil pH-4.5 to 7.0
Avoid water logging conditions as it can cause
the root rot.
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Propagation
Soaking of seeds in water for 12 hours gives about
90 per cent germination. Time of guava propagation
is Feb-March and July-August. Guava can also be
successfully propagated generally through –
 Cuttings
Air layering
Grafting
Budding

18. Land preparation
• Land should be deeply ploughed, harrowed &
leveled before planting.
• Make sure to bring the soil to fine tilth stage.
• Remove any weeds from previous crops & land
should be prepared in such a way that any
excess water should be drained out.
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19. Planting method
• Season of planting from June - December.
• Spacing 5 - 6m in either way is generally followed.
• Plant the layers with the ball of earth in the centre of
pit of 45 cm x 45 cm x 45 cm size filled with FYM
10 Kg, neem cake 1 Kg and top soil.
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20. Cont…
Guavatrees are planted at adistance of 5-6
meters.
Treesgrow rapidly and fruit in 2-4years.
Theylive 30-40 yearsbut productivitydeclines after
the 15thyear.
Guavasome time suffers from deficiency ofzinc and
iron.
Spraying the trees with 7.0 gm per litter of ZnSo4
and 46.5 gm of FeSo4improves yieldand quality.
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21. FYM Fertilizer requirement (g / tree)
Age of tree
(Year)
(Kg/tree) Urea
Diammonium
Phosphate
Muriate of
potash
1 5 55 35 15
2 10 115 70 35
3 15 170 105 50
4 20 225 140 65
5 25 345 170 85
6 30 415 205 100
7 35 565 240 115
8 & onwards 40 700 275 135
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Manuring and Fertilization
Note:- The fertilizer should be applied in two split doses i.e. 1st week of May for
rainy season crop and 1st week of July for winter season crop.
Although guava is grown without application of any manure and
fertilizer, it responds well in their application by giving higher yield and
better quality fruit.

22. Pruning Blossoming
Light annual pruning is necessaryafter every harvest.
 Guavaflowers twice ayear:
•1st in March to April for summercrop. 2nd in
August to September for winter.
. Blooming period varies from 25-45days.
Winter crop is usually preferred as it yields higher with
fruit of better quality.
Guavafruit takesabout 125 daysto reach maturity after
setting.
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23. Intercultural operations
• Irrigation: Guava is mostly grown under rainfed
conditions and irrigation is generally not practiced
but wherever the irrigation is available, it should be
given in summer and October/Novermber as it
enhances the yield of guava tree by increasing fruit
set.
• Intercropping of Guava: Guava orchards may be
intercropped with short growing leguminous crops
like mash, moong, guar and vegetables.
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24. Cont..
• Aftercare of Guava
• Pre-harvest spray of calcium nitrate (2%) two weeks
before harvest improve quality at the time of harvest of
guava, whereas, the spray of 150 ppm silver nitrate at 5
weeks before harvest and another spray at three weeks
after first spray increases the shelf life of guava
satisfactorily upto 6 days at room temperature.
• GA, 90 ppm, sprayed 30 days before harvest improves the
fruit quality at harvest and also increases the shelf life of
guava.
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25. Harvesting & Yield
At maturity fruit turns from greento oil green andat
ripening creamyincolour.
Hand picking of ripened fruits two to three times a week is
suggested.
 Theharvestingseasonmanylast 8-10weeks.
• Grafted plants come into bearing at the age of 3 years and
peak harvesting periods are August-September for rainy
season crop and Jan-Feb. for winter season crop.
• Guava develops best flavour and aroma only when they ripe
on tree. A ten year old guava tree gives a yield, up to 100 kg
of fruit.
• Fruit is highly perishable, it should be immediately marketer after
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26. Post Harvest Management
Grading-Fruits are graded on the basis of their weight, size and colour.
Storage-The fresh fruit has a short shelf life and distant marketing can
be done only if it is properly stored.
Packing-The fruits are packed in baskets made from locally available
plant material.
Marketing-Majority of the cultivation sell their produce either through
trade agents at village level or commission agents at the market.
Transportation-Road transport by trucks / lorries is the most
convenient mode of transport due to easy approach from orchards to
the market.
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27. Common Pests & Diseases
Rust (Puccinia psidii)
• Orange to redpustules
appearing on leaves,young
shoots, flowers and/or fruit;
leaves distorted; defoliation of
tree; reducedgrowth; circular
lesions on fully expanded
leaves with dark borders and
yellow halos.
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28. Primary method of controlling diseaseis usually
the applicationof appropriate fungicides.
Cultural practices that mayreduce the incidence
of thedisease.
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Management

29. Cont..
Anthracnose ( Colletotrichumgloeosporoides)
Sunken,dark colored lesions on maturefruit which
maybecomecovered in pinkspores.
lesions coalesceto form large necroticpatches on
surfaceof fruit.
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30. Management
The primary method of controlling the diseaseisto
plant resistantguava cultivars.
Both systemicandnon-systemic fungicidesareeffective
atcontrolling the disease.
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31. Algal leaf spot (Cephaleuros virescens)
• Orange,rust-colored,dense,silky tufts on both upper
& lower surfaces of leaves which turn reddish-
purple in color as they mature.
• If tufts are scraped away, a thin gray-white or
dark-colored necrotic spot remains on the leaf.
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32. Management
Ensuretrees receive adequatefertilization, irrigation
and and are properly pruned to avoid stresson the
plants and promote air circulation through the
canopy.
Periodic applications of acopper based fungicide is
usually enough to controlthe disease
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33. Fruit Rot (Phyotophthora nicotianae)
Symptoms Management
The disease starts at the styler end.
Whitish cottony mass develops very fast
as the fruit starts ripening and covers the
entire fruit surface in few days. Humid
weather favours the disease. The diseased
fruit drops from the tree.
Spray the tree with
combination of fungicides
metalaxyl + mancozeb (250
g/100 L water) or metalaxyl
(100 g/100 L water) or
fosetyl-al (300g/100 L water)
as soon as the disease is
observed, repeat sprays at 15
days interval.
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34. Cont..
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35. Fruit Fly (Bactrocera dorsalis)
Guava Pests Management
Fruit flies deposit eggs in
soft skin of ripening guava
fruits. After hatching the
maggots feed on the soft
pulp as a result fruits start
rotting and fall on the
ground.
i) Harvest fruits when they
are still hard.
ii) Collect and destroy all
fallen fruits.
iii) Apply bait sprays in
July-August at 10-15 days
intervals (malathion50 EC
200 ml and gur 1 kg in 100
L water).
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36. Cont..
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37. Fruit Borers (Virachola Isocrates)
Pest Management
Larvae bore into the fruit
and feed on the pulp of the
fruit.
Spray dimethoate 30 EC
(0.03%) at marble stage of
the fruit followed by
2ndspray at 4 weeks
interval.
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38. Uses
Guava fruits may be eaten fresh or processed to
produce paste ,jellies or preserves.
• Dehydrate fruit is used to make guava
powder
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39. Conclusion
• Guava is useful in food and many other
commercial and industrial applications. Guava
fruit is not only a rich source of vitamins but
also a good source of minerals. The
preservation of fruits especially guava is the
pre requisite for the economical and efficient
utilization of this perishable commodity in
Bangladesh.
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