Write detailed notes of the following:i) Physiological effects of

Question

Write detailed notes of the following:

i) Physiological effects of plant growth regulators

ii) Characteristics determining economic importance of wood

iii) Syngamy and triple fusion

iv) Autochory

18 Jan 2021

Answer :

Word Count : 531

i) Physiological effects of plant growth regulators

Auxins

Auxins (from Greek ‘auxein’ : to grow) was first isolated from human urine. The term ‘auxin’ is applied to the indole-3-acetic acid (IAA), and to other natural and synthetic compounds having certain growth regulating properties. They are generally produced by the growing apices of the stems and roots, from where they migrate to the regions of their action. Auxins like IAA and indole butyric acid (IBA) have been isolated from plants.

Gibberellins

Gibberellins are another kind of promotery PGR. There ____ __________ __________ _________ _________ _______ __________.
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