You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?
The avena curvature is used for bioassay of:
Which of the following statements is not correct?
Fruit and leaf drop at early stages can be prevented by the application of
It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?
Name the plant growth regulator which upon spraying on sugarcane crop increases the length of stem, thus increasing the yield of sugarcane crop
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The process of growth is maximum during
Which of the following is not an inhibitory substance governing seed dormancy?
The plant hormone used to destroy weeds in a field is
Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called
The gaseous plant growth regulator is used in plants to:
Which one of the following plants does not show plasticity?
Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in the plants?
In tissue experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as:
The phenomenon which is influenced by auxin and also played a major role in its discovery :
Spraying of which of the following phytohormone on juvenile conifers helps in hastening the maturity period, that leads to early seed production?
Which hormone promotes internode/petiole elongation in deep water rice?
Match List-I with List-II List-I: (A) Auxin (B) Gibberellin (C) Cytokinin (D) Ethylene List-II: (I) Promotes female flower formation in cucumber (II) Overcoming apical dominance (III) Increase in the length of grape stalks (IV) Promotes flowering in pineapple Choose the correct answer from the options given below:
Removal of shoot tips is a very useful technique to boost the production of tea-leaves. This is because
In order to increase the yield of sugarcane crop, which of the following plant growth regulators should be sprayed?
Formation of interfascicular cambium from fully developed parenchyma cells is an example for
Auxin is used by gardeners to prepare weed-free lawns. But no damage is caused to grass as auxin
The capacity to generate a whole plant from any cell of the plant is called
Spraying sugarcane crop with which of the following plant growth regulators, increases the length of stem, thus, increasing the yield?
Read the following statements on plant growth and development. A. Parthenocarpy can be induced by auxins. B. Plant growth regulators can be involved in promotion as well as inhibition of growth. C. Dedifferentiation is a pre-requisite for re-differentiation. D. Abscisic acid is a plant growth promoter. E. Apical dominance promotes the growth of lateral buds. Choose the option with all correct statements.
Which one of the following phytohormones promotes nutrient mobilization which helps in the delay of leaf senescence in plants?
Length of the stem at time 0 is 20 cm. The arithmetic growth rate is 30 cm per day. What is the length of the stem at the end of the 7th day?
Which of the following plant growth regulators is used as a herbicide?
Which of the following plant growth regulators promotes internode elongation prior to flowering in cabbage?
Which one of the following is not a characteristic of plant cells in the phase of elongation?
Match List-I (Growth Regulator) with List-II (Function/Effect): List-I A. 2,4-D B. GA3 C. Kinetin D. ABA List-II I. Brewing industry II. Stimulation of stomatal closure III. Herbicide IV. Nutrient mobilisation Choose the correct answer from the options given below:
Heterophyllous development in response to environment is an example of which of the following phenomena?
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