Post harvest management final


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  • are most welcome..Advance Eid Mubarak to all of you guys.

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  • Thanks.
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  • Dear Dr.S.C.Biswas

    Thanks ..Really i learned here in IRRI and UPLB in every moment even in behave,culture,knowledge as well in my respective work also.Since 2011 to till i am doing PhD class work simultaneously research in IRRI field ,greenhouse and Genome Molecular Lab(GML) for genotyping mapping on my experiments superior lines that i got last 4 season from phenotyping results.And i am planning to next December will be able to take Comprehensive exam before Oral and PhD defense and i have more season to do phenotyping screening and last season do Mapping more superior lines.

    Thanks dr.s.c biswas for your concern

    Respect to you all colleagues

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  • Dear Mr. Zilhas,
    Thanks for your comments. Two months back I presented it in a workshop at Bangladesh Agricultural Research Council. By the by, what is the progress of your work? Please share your experience.
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  • Hi Dr.S.C.Biswas
    I have little bit scope to see your ppt based on vegetables that you guy post on LinkedIn you mail as well.Its really nice even in resourceful news that you include.
    Thanks & Regards

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Post harvest management final

  1. 1. Present Status of Pre & PostHarvest Research & ExtensionActivities of Vegetable Seeds inBRACPresented ByDr. S. C.Biswas
  2. 2. Target cropsWe are dealing with 30 different vegetable cropsincluding fruiting vegetables, leafy & saladvegetables, podded vegetables, stem & bulbvegetables, cruciferous veg. crops, root vegetables etc.FruitingvegetablesLeafy &saladvegetablesPoddedvegetablesStem &bulbvegetablesCrucife-rous veg.cropsRootvegetablesOkra, pumpkin,cucumber,bitter gourd,bottle gourd,ridge gourd,ash gourd,snake gourdetc.Spinach,pechay, redamaranth,leafmustard,kang kong,princeshak, redbethua etc.Yard longbean, countrybean, mungbean, ground nut etc.Stemamaranth,onion etc.Cauliflower& cabbageetc.Radish, carrot etc.
  3. 3. Current Situation of the VegetableSeed in Bangladesho The present requirement of good qualityvegetable seed is around 3,500 MT.o Only 36% quality vegetable seeds are availablefrom public and private sectors.o Seed is a perishable item and vast majority offarmers use their own low quality seeds.o The present incapability is related to inadequateinfrastructure, insufficient trainedmanpower, inadequate suitable plant material, lack ofappropriate research and development opportunities etc.
  4. 4. Why Post Harvest Management is important in Vegetable Seeds ?
  5. 5. Post harvest management includes:1. Good harvesting method at proper maturity.2. Curing3. Grading and sorting of fruits/pods for seedextraction.4. Extraction of seeds from good quality fruits /pods.5. Cleaning & grading.6. Drying to maintain optimum moisture.7. Treatment.8. Packing &9. Storing.
  6. 6. Okra1. Malformed and deformed fruits are removed earlier and onlyhealthy fruits are selected for seeds.2. Healthy and straight type fruits are selected from plants freefrom disease and insect attack.3. Pods are harvested as soon as they become mature and beforeshattering.4. Pods are harvested by hand individually & thereafter fruits aredried in the sun.5. Threshing is also done by hand after the pods are sufficientlydry.6. Light seeds are then removed by cleaning and winnowing.7. Collected seeds are sun dried to moisture level not exceeding12% for open storage and up to 9% for sealed packets.8. During rainy day there is every possibility of damaging seeds iffruits are not harvested at proper stage.9. In rainy day if there is no sun, seeds are dried keeping themunder electric fan.
  7. 7. Okra Fruits
  8. 8. Tomato1. Larger size healthy properly ripened fruits areharvested from 1st and 2nd tier fruits and kept in roomtemperature for 2-3 days before extraction of seeds.2. Tomato seeds are extracted mainly by fermentationmethods.3. After cutting the tomato fruits seeds along with pulp arefermented for 12 hours.4. The pulp is stirred several times to maintain a uniformrate of fermentation and to avoid discoloration of the seed.5. Seeds are then cleaned with clean water and driedthereafter.
  9. 9. Tomato Fruits
  10. 10. Brinjal1. Ripened fruits are handpicked and usually seeds are collectedfrom fruits formed at early and mid fruiting stage.2. Good quality fruits are harvested from plants free from diseaseand insect attack.3. Seeds are collected through wet extraction method.4. Harvested fruits are stored for 5-7 days at room temperatureuntil they become soft.5. Fruits are cut into thin slices and these are then softened bysoaking till the seeds are separated from the pulp.6. After extracting and washing, the seeds are cleaned and dried.7. Drying is done by spreading the seeds in the partial sunlight forfew hours for one or two days up to a moisture content of 8% orbelow.
  11. 11. Ripened Fruits of Egg plant
  12. 12. Pumpkin1. Full matured fruits are harvested when thepeduncle becomes straw coloured and vines startsdrying.2. Before seed extraction fruits are stored in roomtemperature for 3 to 4 weeks spreading them inone single layer.3. Fruits are cut into half and the seeds are scoopedout by hand.4. Placenta with the seeds is usually separated byrolling.5. Seeds are then washed with water in troughs.6. Seeds are dried quickly. At first seeds are spread ontrays and placed in the shade and gradually to sunto dry and seeds are dried up to a moisture level of7%.
  13. 13. Ripened Fruits of Pumpkin
  14. 14. Cucumber1. Malformed and deformed fruits are removed earlierand only healthy fruits are selected for seeds.2. Yellow or brown coloured straight type fruits areallowed to ripen fully.3. Fruits are collected from vines when fruit stalkadjacent to the fruit withers.4. After full maturity fruits are harvested and kept 5-7days for post harvest maturity.5. For this purpose harvested fruits are kept spreading inone single layer with a space between the fruits in ashade dry place under ordinary condition.6. Fruits are cut into half and scoop out the seeds byhand.7. Bold size, fully filled and better looking seeds areextracted, cleaned and stored.
  15. 15. Fig. Ripened Fruitsof CucumberFig. SeedProduction Plotof Cucumber
  16. 16. Spinach1. Spinach seeds mature in sequence even in the sameplant and first formed inflorescence seeds mature first.2. When the seed stalks and seeds turn yellow (brownishred in red spinach) and dry, harvesting is done bycutting.3. Usually 2-3 harvests are done for quality seedproduction.4. Harvested branches are dried in the sun over dryingfloor.5. Threshing is done by hand beating with a stick afterbeing seed stalks are properly dried.6. Seeds are cleaned by winnowing and dried to 8-9%moisture content.
  17. 17. Figs. Seed Bearing Plants of Red Spinach
  18. 18. Kang kong1. Larger and heavier seeds are selected.2. Seeds are sown on seed beds and healthy seedlings are raised.3. Robust plants having high vigor are selected for cloning.4. Pre foundation seeds (1st generation) are produced from theselected clones growing them in the main field.5. Again healthy plants are produced on seed bed from prefoundation seeds and superior clones are developed fromcuttings of these plant through the same method.6. Foundation seeds are produced from these superior clones.7. Seeds are harvested when the capsules turn brown.8. Hand picking is generally done.9. Capsules are dried and seeds are extracted by beating lightlywith sticks.10. Seeds are then cleaned and dried properly for storage.
  19. 19. Clones Reddish Kang kong
  20. 20. Fig.Fenugreek(Methi).Characteristics•It can be used both as vegetable (leaves are used asvegetable) and spice crop.•Moderately short duration crop and it is also aprofitable crop as well.• It is tolerant to major diseases and pests.•It has got medicinal value and found to be verymuch effective in controlling dandruff problem andloss of hair.•Yield per acre 500 Kg.
  21. 21. Radish1. Seed plants are allowed to mature fullybefore harvesting.2. Plants are cut when most of the podturns brown.3. The crop is cut by sickle and brought tothreshing floor for thoroughly drying.4. Threshing is done by beating with sticks.5. Seed after sifting is dried to 6-8%moisture content before storage.
  22. 22. Seed Production Plot of Radish
  23. 23. Few Techniques for Imrpoving Seed or Propagule Quality(Pre Harvesting Operations)1. Disbudding technique in okra.2. Growing pumpkin on trellis.3. Stopping through snapping of the apical portion ofcucurbits.4. Thinning in cauliflower, radish, broccoli etc.5. Cloning in kangkong, jute mallow, Brahmi shak (Bacopamonieri), Gandhabhadali (Pterida foetida).6. Selection of large size seeds for increasing bulb size inonion.7. Application of micronutrients in the production of fruits incountry bean and other crops.8. Staking.9. Pruning.10. Transplanting
  24. 24. Fig. Disbudding technique in red okra.
  25. 25. Fig. Comparebetweentrellis –grown sweetgourd andpumpkingrown onbeds.
  26. 26. Thinning in cauliflower
  27. 27. Thinning in broccoli
  28. 28. Cloning in F1 hybrid Kang kong
  29. 29. Cloning of Prince Shak (Jute mallow)
  30. 30. Cloning in Pumpkin
  31. 31. Contd.
  32. 32. Contd.
  33. 33. Cloning in Brahmi shak & Gandhabhadali
  34. 34. Fig. Pruning in BRAC developed summer countrybean (2nd phase of harvesting in the month ofJanuary)
  35. 35. Figs. TransplantedBothua(both red and green)
  36. 36. Water caltrop (Panifal) , Trapa natans
  37. 37. •It is an aquatic plant andits raw fruits are delicious.•Very easy to grow andrequires small amount ofinvestment and labour.•Since it is a profitable cropcan be cultivatedcommercially in the ‘haor’areas.•Children’s like it verymuch and sometimes flouris produced from its fruits.•It is harvested when thefarmers have no work.•Fish and fruits can becultivated in the same waterbody.Characteristics
  38. 38. EXTENSION ACTIVITIES (BRAC-AVRDC/USAID)Home gardens – Barishal & Jessore.• Upazilla covered- 2 (Uzirpur atBarishal & Chougacha at Jessore).• Total No of Gardens: 301 (251 inUzirpur & 50 in Chougacha).Market gardens - Barishal• Location : Uzirpur only.• Area: 14.28 ha.• No. of farmers: 100
  39. 39. Design, pilot and promote locally adaptedhome and market gardens including year-long and adapted cropping sequences.