BIOLOGY
HORMONES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Allows them to take in more water
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The plant synthesises sucrose more
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The distance between each fruit is increases
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Increases phloem concentration to transport more sugars to fruit.
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Detailed explanation-1: -A model integrating the role of auxin and gibberellin in tomato fruit set. The levels of both hormones increase after pollination, resulting in the activation of auxin and gibberellin response genes, which, in turn, will trigger fruit growth by regulating cell division and cell expansion.
Detailed explanation-2: -Gibberellins are tetracyclic diterpenoid hormones that stimulate aspects of plant development, such as root and shoot elongation, seed germination, flower transition, and fruit set and expansion (1). They stimulate these processes by disrupting proteins from the DELLA family of negative regulators (2, 3).
Detailed explanation-3: -Gibberellic acid increases fruit firmness, fruit size, and delays maturity of ‘sweetheart’ sweet cherry.
Detailed explanation-4: -Fruit growth depends on highly coordinated hormonal activities. The phytohormone gibberellin (GA) promotes growth by triggering degradation of the growth-repressing DELLA proteins; however, the extent to which such proteins contribute to GA-mediated fruit development remains to be clarified.
Detailed explanation-5: -Potassium is the key driver of fruit size and alongside nitrogen is required in large quantities throughout fruit development and growth. However, too much nitrogen at a late growth stage can restrict fruit size; therefore a balanced nutrient application is crucial. Phosphorus can restrict fruit growth too.