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__________

Application of iron and magnesium to promote synthesis of chlorophyll
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

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