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प्रश्न
Stems are
पर्याय
positively geotropic and negatively phototropic
positively geotropic and positively phototropic
negatively geotropic and positively phototropic
negatively phototropic and negatively geotropic
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उत्तर
negatively geotropic and positively phototropic
संबंधित प्रश्न
How does chemical coordination occur in plants?
What is the general name of chemical substances which bring about control and coordination in plants?
Auxins are abundantly produced in
Common gibberellin is
Match the items in column A with those of column B.
| Column A | Column B | ||
| (a) | Auxin | (i) | apical dominance |
| (b) | Gibberellin | (ii) | cell-division |
| (c) | Cytokinin | (iii) | fruit ripening |
| (d) | Ethylene | (iv) | internodal elongation |
Name the following:
Hormone that stimulates growth by cell division.
Which hormone causes Bakanae disease of rice?
Coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly cut coleoptile stumps.
What is the significance of the above experiment performed by Dr. F. Went?
Flowering in pineapple is promoted by ____________.
Give one example of Parthenocarpy.
