2, 4-D is
1. Widely used to kill monocots
2. Effective weedicides against broad-leaved plants
3. Used to prevent lodging and root initiation
4. Used to promote flowering in pineapple and mango
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Subtopic: Growth Hormones & Auxin |
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Select an incorrect statement
1. Auxin promotes xylem differentiation
2. NAA is used to overcome apical dominance
3. Auxins help to prevent fruit and leaf drop at early stages
4. Auxins prevent lodging of cereals
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Subtopic: Growth Hormones & Auxin | Cytokinin |
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Auxins
1. Were first isolated in agar by PaaI
2. Are synthesised using tryptophan as precursor
3. Are found always as bound with amines
4. Are synthesised in shoot apices only
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Subtopic: Growth Hormones & Auxin |
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Fruit ripening is promoted by the hormone that
1. Promotes thinning of fruits in cherry and walnut
2. Induce parthenocarpy in tomato
3. Promotes flowering in Lemna
4. Is derived from tRNA
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Subtopic: Ethylene |
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