While eating watermelons, all of us wish it was seedless. As a plant physiologist, can you suggest any method by which this can be achieved?
- ABy using high-frequency sound waves
- BBy spraying plant growth regulators like auxins and gibberellins
- CBy increasing the temperature of the soil
- DBy removing the petals of the flower
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Phytoalexins are secreted by plants in response to fungal infection. These compounds are generally
Medium
View SolutionMatch column $I$ with column $II$ and select the correct option:
Column $I$ (Precursor/Term) Column $II$ (Associated Hormone) $(a)$ Tryptophan $(i)$ Cytokinin $(b)$ Mevalonic acid $(ii)$ Abscisic acid $(c)$ Kinetin $(iii)$ Gibberellins $(d)$ Dormin $(iv)$ Auxin
| Column $I$ (Precursor/Term) | Column $II$ (Associated Hormone) |
|---|---|
| $(a)$ Tryptophan | $(i)$ Cytokinin |
| $(b)$ Mevalonic acid | $(ii)$ Abscisic acid |
| $(c)$ Kinetin | $(iii)$ Gibberellins |
| $(d)$ Dormin | $(iv)$ Auxin |
$I.$ Auxin,$II.$ Cytokinin,$III.$ $GA$,$IV.$ $ABA$.
Which of the above-mentioned $PGR$ are acidic in nature? Choose the correct option accordingly.
Which of the above-mentioned $PGR$ are acidic in nature? Choose the correct option accordingly.
Medium
View SolutionWater stress makes plant leaves ...$A$... thus,...$B$... the surface area of leaves and their metabolic activity as well. Here $A$ and $B$ refer to:
Medium
View SolutionMatch the following:
Column $I$ Column $II$ $a.$ Auxin $(i)$ Root hair formation $b.$ Cytokinin $(ii)$ Seed development $c.$ Ethylene $(iii)$ Xylem differentiation $d.$ $ABA$ $(iv)$ Nutrient mobilisation
| Column $I$ | Column $II$ |
|---|---|
| $a.$ Auxin | $(i)$ Root hair formation |
| $b.$ Cytokinin | $(ii)$ Seed development |
| $c.$ Ethylene | $(iii)$ Xylem differentiation |
| $d.$ $ABA$ | $(iv)$ Nutrient mobilisation |
Medium
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