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 ?

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

Attempt this NEET 2006 Biology question free — pick an option to reveal the correct answer and a step-by-step explanation. Then join NEET Mastery Quest to practise 15,000+ PYQ and 2027-syllabus questions.