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What factors may be responsible for loss...

What factors may be responsible for losses of grains during storage?

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The correct Answer is:
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There are two main factors responsible for lose during storage. A. Biotic factors include:
1. Insects, e.g., grubs of pulse beetle, grubs and adults of rice weevil, wheat weevil, catterpillar of grain and flour moth, larvae and adult of rust red flour beetle, larvae of rice moth and grubs and adults of lesser grain borer.
2. Rodents, e.g., striped squirrel, house rat, house mouse, lesser bandicoot rat, etc.
3. Birds, e.g., parakeet, sparrow, bulbul, blue rock pigeon, crow, etc.
4. Mites, 5, Fungi, and 6. Bacteria.
B. Abiotic factors. They include moisture, temperature and other non-living environment factors.
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LAKHMIR SINGH & MANJIT KAUR-IMPROVEMENTS IN FOOD RESOURCES -VERY SHORT ANSWER QUESTIONS
  1. What factors may be responsible for losses of grains during storage?

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  2. Mention the crop whose production has increased by blue revolution and...

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  3. What are plant nutrients ?

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  4. Name the three most important mineral elements required for plant grow...

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  5. What are the micronutrients required by the plants ?

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  6. Name any two macronutrients required by plants.

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  7. Which one is nutrient specific-fertilizer or manure ?

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  8. Which is the oldest method of crop improvement ?

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  9. Name one common disease of paddy.

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  10. Give an example of biological weed control.

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  11. Give one example of natural insecticide.

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  12. What are weeds ?

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  13. Write down two harmful effects of biotic factors on food grains.

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  14. What percent of moisture should be present in the food grains at the t...

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  15. Give one example of solid and one of liquid fumigant.

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  16. Which method is most effective for destroying insects in stored grains...

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  17. How the food grains should be dried on commerical basis ?

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  18. What is feed ?

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  19. Name one (a) Leguminous green fodder, (b) Non-green dry fodder.

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  20. Name one high yielding breed of cow and one of buffalo respectively.

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  21. What are fat content in milk of: (a) Murrah, (b) Surti ?

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