Farmers in a particular region were concerned that premature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment co - Biology MCQ Biology | ExamTest.live

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

A $Frequent irrigation of the crop$
B $Treatment of the paints with cytokinins alongwith a small dose of nitrogenous fertilizer$
C $Removal of all yellow leaves and spraying the remaining green leaves with 2,4,5-trichlorophenoxy acetic acid$
D $Application of iron and magnesium to promote synthesis of chlorophyll$

Solution & Step-by-step Explanation

Yellowing of leaves (chlorosis) is predominantly caused by the deficiency of minerals like magnesium and iron which are critical components/activators for chlorophyll synthesis.

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Farmers in a particular region were concerned that premature 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 paints with cytokinins alongwith 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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