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Farmers in aparticlular region were conc...

Farmers in aparticlular region were concerned that pre mature yellowing of leaves of a pluser crop might cause decrease in the yield. Which treatment could be most benefical to obtain maximum seed yield?

A

frequent irrigation of the crop

B

Treatment of the plants with cytokinings alongs with a small dose of nitrogenous fertiliser

C

Removal of all yellow leaves and spraying the remaining green leaves with 2,4,5 trichlorophenoxy acetic acid

D

application iron and magnesium to promote synthesis of chlorophyll

Text Solution

Verified by Experts

The correct Answer is:
D
If a pulse crop possesses premature yellowing of leaves and decrease in yeild an application of magnesiun and iron to promot sythesisi of chlorophy may becomes most benefical to overvaome the problem and to obtain maximum seed yield.
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Farmers in a particular region were concerned that premature yellowing of leaves of a pulse crop might cuuse dectease in the yild .Which treatment could be most benefical top obtain maxmum seed yield

Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might caused decrease in the yield. Which treatment could be most be most beneficial to obtain maximum seed yield?

First read a passage and then answer the questions following that passage. Soil scientists have shown that the soil teems with millions of living things, many of them useful, others harmful. The living things which are useful include earthworms and various kinds of bacteria. Earthworms loosen the soil and so enable air and water to enter it. Bacteria, which are microscopic living things break down dead plants and animals and make humus, or take nitrogen from the air and change it into substances that plants use. The living things that do harm include other bacteria and fungi which cause diseases. Other harmful things are pests such as wire worms which feed on the roots of grass and other plants. While the farmer can usually keep weeds in check by careful cultivation, this alone may not protect his crops from insects, pests and diseases. Nowadays, however, he is much better able to control these enemies. He may plant. specially resistant types of seeds or he may keep the pests and diseases in check with chemicals. With better seeds farmers have been able to increase their crop yield . They can grow crops that ripen more quickly and have a stronger resistance to disease, frost or drought. The farmers today can also select seeds

First read a passage and then answer the questions following that passage. Soil scientists have shown that the soil teems with millions of living things, many of them useful, others harmful. The living things which are useful include earthworms and various kinds of bacteria. Earthworms loosen the soil and so enable air and water to enter it. Bacteria, which are microscopic living things break down dead plants and animals and make humus, or take nitrogen from the air and change it into substances that plants use. The living things that do harm include other bacteria and fungi which cause diseases. Other harmful things are pests such as wire worms which feed on the roots of grass and other plants. While the farmer can usually keep weeds in check by careful cultivation, this alone may not protect his crops from insects, pests and diseases. Nowadays, however, he is much better able to control these enemies. He may plant. specially resistant types of seeds or he may keep the pests and diseases in check with chemicals. With better seeds farmers have been able to increase their crop yield . They can grow crops that ripen more quickly and have a stronger resistance to disease, frost or drought. Farmers are always careful

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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION-EXERCISE
  1. Which one of the following is a viral disease of poultry?

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  2. Which one of the following pair is mismatched?

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  3. Farmers in aparticlular region were concerned that pre mature yellowin...

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  4. In maize, hybrid vigour is exploited by:

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  5. In order to obtains virus plants through tissue culture the best metho...

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  6. Golden rice is a transgenic crop of the future with the following impr...

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  7. crop plants grown in monoculture are

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  8. Triticale the first man made cereal crop has been obtained by crossing...

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  9. Three crops that contribute maximum to global food production are

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  10. Norman Borlaug is associated with

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  11. why is vivipary an undesirable character for annual crop plants?

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  12. Which of the following is generally used for induced mutagenesis in cr...

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  13. The world's highly prized wool yeilding 'Pashmina' breed is :

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  14. India wheat yield revolution in the 1960s was possible primarily due t...

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  15. which of the following crops have been brought to india from new worl...

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  16. What is best pH of soil for cultivation

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  17. Before the European invaders which vagetable was/were absent in india?

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  18. Which statement is correct about center of origin of plants?

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  19. One of the most important reason why wild plants should thrive is that...

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  20. The new varieties of plants are produced by

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