Botany - Plant Growth and Development Question with Solution | TestHub
Which one of the PGRs would be used by farmers if they are asked to?
Induce parthenocarpy in tomatoes
Hastens fruit ripening in tomatoes and apples
Induces flowering in mango
Elongation and improvement in the shape of the apple
Promote nutrient mobilization
Options:
Answer:
Solution:
Plant growth hormones are the signalling molecules that are produced in the plants in low concentrations. Parthenocarpy is the production of fruit artificially or naturally without fertilization of ovules.
Auxin is a plant hormone which when sprayed on the flowers of tomato induces parthenocarpy.
Ethephon is a plant growth regulator used for promotion of fruit ripening, abscission and to induce flowering in plants. Ethylene is the gaseous phytohormone responsible to induce flowering in mango plants as it is involved in the growth and senescence of leaves. GA is the gibberellic acid which is mainly involved in plant growth and development and therefore it is used for elongation and improvement in the shape of apple in plants. Cytokinin is a plant hormone primarily used to promote cell division, to overcome apical dominance and they also promote nutrient mobilization in addition to the formation of new leaves and chloroplast.
