ABA Role in Seed Dormancy — NEET Biology
✅ Asked in NEET 2024By inducing dormancy, ABA helps seeds to withstand desiccation and other factors unfavourable for growth. In most situations, ABA acts as an antagonist to GAs.
ABA (Abscisic Acid) induces dormancy in seeds, protecting them from desiccation and unfavourable environmental conditions. This is a KEY NEET concept tested multiple times (2020, 2024). Students often confuse ABA's role with gibberellins (GAs)—remember that ABA and GA are ANTAGONISTS: ABA promotes dormancy while GA promotes growth. To avoid the trap: when a question asks about seed dormancy, stress resistance, or water loss prevention, the answer is ABA, NOT gibberellins. Always recall that ABA's primary role in seeds is protective dormancy, not growth stimulation.
This paragraph was tested 2 times in NEET.
Match List-I with List-II: (NEET 2024) List-I: A. Abscisic acid B. Ethylene C. Gibberellin D. Cytokinin List-II: I. Promotes female flowers in cucumber II. Helps seeds to withstand desiccation III. Helps in nutrient mobilisation IV. Promotes bolting in beet, cabbage etc. Choose the correct answer from the options given below:
Which of the following is not an inhibitory substance governing seed dormancy? (NEET 2020)
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