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Plant Growth and Development — BIO BOTANY STD 11 — Question

Tamilnadu BoardEnglish MediumSTD 11BIO BOTANYPlant Growth and Development2 Marks
Question
Explain the synergistic effect of phytochromes.
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Answer

The effect of one or more substance in such a way that both promote each others activity, eg: Activity of auxin and gibberellins or cytokinins.

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