AIIMS 201925 May
- Exam
- AIIMS
- Year
- 2019
- Date
- 25 May
- Subject
- Botany
- Chapter
- Plant - Growth and Development
AIIMS 2019 · 25 May · Botany · Plant - Growth and Development
Read the given statements and identify the PGRs X, Y and Z . X...
Read the given statements and identify the PGRs and .
induces accumulation of salts inside the cells.
Y promotes rapid elongation of leaf bases and internodes in deep water rice plants.
(iii) Application of to leaves shall reduce transpiration.
Options
- AX-Auxin, Y-Cytokinin, Z-Ethylene
- BX-Cytokinin, Y-Ethylene, Z-ABA
- CX-Auxin, Y-Cytokinin, Z-ABA
- DX-Cytokinin, Y-ABA, Z-Ethylene
Correct answer
B. X-Cytokinin, Y-Ethylene, Z-ABA
Step-by-step solution
Cytokinins induce accumulation of salts inside the cells. Ethylene promotes rapid elongation of leaf bases and internodes in deep water rice plants. As a result, leaves remain above water. Application of minute quantity of abscisic acid to leaves shall reduce transpiration to a great extent through partial closure of stomata. It conserves water and reduces the requirement of irrigation.