NEET2006BotanyMineral NutritionActual
Farmers in a particular region were concerned that pre-mature yellowing of leaves ora pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield?
Options
- Aapplication of iron and magnesium to promote synthesis of chlorophyll
- Bfrequent irrigation of the crop
- Ctreatment of the plants with cytokinins along with a small dose of nitrogenous fertilizer
- Dremoval of all yellow leaves and spraying the remaining green leaves with 2, 4, 5-trichlorophenoxy acetic acid
Correct answer
A. application of iron and magnesium to promote synthesis of chlorophyll
Step-by-step solution
Premature yellowing of leaves in pulse crops occurs because of degradation of chlorophyll. Mg and Fe are required for the biosynthesis of chlorophyll. Hence, Mg and Fe supplements will increase the yield of pulse crops.