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While experimentation, why do you think it is difficult to assign any affect seen to any single hormone? - Biology

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प्रश्न

While experimentation, why do you think it is difficult to assign any affect seen to any single hormone?

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उत्तर

Plant hormones often work in combination. Some plant hormones may have antagonistic effects, while others may have augmentative effects. It is almost impossible to pinpoint any single hormone for a particular effect in a plant part. Moreover, plant hormones bring out their effect in coordination with various extrinsic factors. Hence, it is difficult to assign any effect seen to any kind of hormone.

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Plant Growth Regulators - Physiological Effects of Plant Growth Regulators
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 15: Plant Growth and Development - Exercises [पृष्ठ ८८]

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एनसीईआरटी एक्झांप्लर Biology [English] Class 11
पाठ 15 Plant Growth and Development
Exercises | Q 7. | पृष्ठ ८८

संबंधित प्रश्‍न

The term synergistic action of hormones refers to ______.


ABA acts antagonistic to ______.


Plant growth substances (PGS) have innumerable practical applications. Name the PGS you should use to

Increase yield of sugar cane


Plant growth substances (PGS) have innumerable practical applications. Name the PGS you should use to

Cause sprouting of potato tuber


Plant growth substances (PGS) have innumerable practical applications. Name the PGS you should use to

Inhibit seed germination


In botanical gardens and tea gardens, gardeners trim the plants regularly so that they remain bushy. Does this practice have any scientific explanation?


Auxins are growth hormones capable of promoting cell elongation. They have been used in horticulture to promote growth, flowering and rooting. Explain the meaning of the following terms related to auxins.

Auxin precursors


Auxins are growth hormones capable of promoting cell elongation. They have been used in horticulture to promote growth, flowering and rooting. Explain the meaning of the following terms related to auxins.

Synthetic auxins


What is the mechanism underlying the phenomenon by which the terminal/apical bud suppresses the growth of lateral buds? Suggest measures to overcome this phenomenon.


Define parthenocarpy. Name the plant hormone used to induce parthenocarpy.


A gardener finds some broad-leaved dicot weeds growing in his lawns. What can be done to get rid of the weeds efficiently?


Fill in the blanks:

Apical dominance is due to ______.


Name a hormone which is gaseous in nature


Name a hormone which induces femaleness in flowers of cucumber


Name a hormone which is used for killing weeds (dicots)


Spraying sugarcane crop with which of the following plant growth regulators, increases the length of stem, thus, increasing the yield?


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