AIPMT 2006 Biology Solved Paper

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Question : 10 of 99

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

Frequent irrigation of the crop
Treatment of the plants with cytokinins along with a small dose of nitrogenous fertilizer
Removal of all yellow leaves and spraying the remaining green leaves with 2,4,5. trichlorophenoxy acetic acid
Application of iron and magnesium to promote synthesis of chlorophyll

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