Choose the incorrect statement w.r.t. gaseous hormone, ethylenea)Indu...
Incorrect Statement: c) Promotes germination in peanut seeds but inhibits sprouting of potato tubers
Explanation:
Ethylene is a gaseous hormone that plays a crucial role in various physiological processes in plants. However, the statement that ethylene promotes germination in peanut seeds but inhibits sprouting of potato tubers is incorrect.
Ethylene and Seed Germination:
1. Ethylene promotes seed germination in several plant species, including peanut seeds.
2. It stimulates the production of enzymes that break down stored nutrients in the seed, facilitating germination.
3. It also helps in the weakening of the seed coat, allowing the emerging seedling to emerge easily.
Ethylene and Potato Tubers:
1. Ethylene does not inhibit the sprouting of potato tubers. Instead, it promotes sprouting and induces the formation of sprouts from potato tubers.
2. The sprouting process in potato tubers is regulated by the presence of ethylene, which triggers the release of stored energy and growth of new shoots.
3. In fact, sprouting is undesirable in potato storage, so efforts are made to minimize ethylene exposure to prevent premature sprouting.
Functions of Ethylene:
1. Ethylene induces horizontal growth of seedlings, which is important for plant survival and adaptation to environmental conditions.
2. It is one of the most widely used hormones in agriculture for various purposes, including fruit ripening, flower senescence, and promoting abscission (leaf or fruit shedding).
3. Ethylene promotes senescence and abscission in plant organs, leading to the shedding of leaves, flowers, and fruits.
4. It also plays a role in the response to stress conditions such as flooding, drought, and pathogen attack.
Conclusion:
The incorrect statement in this case is option c) which states that ethylene promotes germination in peanut seeds but inhibits sprouting of potato tubers. Ethylene actually promotes seed germination in peanut seeds and induces sprouting in potato tubers.
Choose the incorrect statement w.r.t. gaseous hormone, ethylenea)Indu...
Promotes sprouting of potato tubers.
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