Advertisements
Advertisements
प्रश्न
Which one of the following phytohormones promotes nutrient mobilisation which helps in the delay of leaf senescence in plants?
पर्याय
Ethylene
Abscisic acid
Gibberellin
Cytokinin
MCQ
Advertisements
उत्तर
Cytokinin
Explanation:
Plant hormones called cytokinins encourage nutrient mobilisation and maintain chlorophyll levels, delaying leaf senescence (ageing). This prolongs the leaf’s green colour and photosynthetic activity. Gibberellins are more closely linked to growth processes like stem elongation, whereas other hormones like ethylene and abscisic acid encourage senescence.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
