Description : Critical day length photoperiodism. -Biology
Last Answer : answer:
Description : Impotance of day length ( photoperiodism ) in flowering of plants was first shown in
Last Answer : Impotance of day length ( photoperiodism ) in flowering of plants was first shown in A. Cotton B. Petunia C. Lemna D. Tobacco
Description : Plants response to the relative length of daylight or darkness is known as: a. long day b. Short day c. Neutral d. Photoperiodism
Last Answer : Photoperiodism
Description : What is photoperiodism in plants? -Biology
Description : Difference between photoperiodism and vernalization. -Biology
Description : Is photoperiodism a tropism? -Biology
Description : Photoperiodism was first char acterised in
Last Answer : Photoperiodism was first char acterised in A. Tabacco B. Potato C. Tomato D. Cotton
Description : Photoperiodism is probably due to synthesis of
Last Answer : Photoperiodism is probably due to synthesis of A. Cytokinins B. Gibberellins C. Auxin D. Florigen
Description : Photoperiodism affects – (1) All of these (2) Flowering (3) Vegetative growth (4) Fruiting
Last Answer : (1) All of these Explanation: Photoperiodism is the developmental responses of plants to the relative lengths of light and dark periods. It affects the vegetative growth as well as ... period, while in yet other species the plant may continue vegetative development indefinitely without flowering.
Description : Growth of plant towards light is called? (A)Phototropism (B) Photorespiration (C) Photocromatism (D) Photoperiodism
Last Answer : (D) Photoperiodism
Description : When we migrate from dark to light, we fail to see for sometime but after a time visibility becomes normal. It is example of (a) accomodation (b) adaptation (c) mutation (d) photoperiodism.
Last Answer : (b) adaptation
Description : Phytochrome is involved in (a) phototropism (b) photorespiration (c) photoperiodism (d) geotropism
Last Answer : (c) photoperiodism
Description : The response of different organisms to the environmental rhythms of light and darkness is called (a) vernalization (b) photoperiodism (c) phototaxis (d) phototropism.
Last Answer : b) photoperiodism
Description : Photoperiodism was first characterised in (a) tobacco (b) potato (c) tomato (d) cotton.
Last Answer : (a) tobacco
Description : In plant cells, peroxisomes are associated with (a) photorespiration (b) phototropism (c) photoperiodism (d) photosynthesis.
Last Answer : (a) photorespiration
Description : What is critical day length? -Biology
Description : Critical day length chrysanthemum. -Biology
Description : In short day plants, flowering is induced by (a) photoperiod less than 12 hours (b) photoperiod below a critical length and uninterrupted long night (c) long night (d) short photoperiod and interrupted long night
Last Answer : (b) photoperiod below a critical length and uninterrupted long night
Description : If the length of overland flow from the critical point to the mouth of drain is 13.58 km and difference in level between the critical point and drain mouth is 10 m, the inlet time is A. 2 hours B. 4 hours C. 6 hours D. 8 hours
Last Answer : ANS: D
Description : Which of the following characteristics is most critical in determining the size of the cable to be used in a particular circuit? A. voltage rating B. weight per unit length C. current rating D. inductance per unit length
Last Answer : Answer: C
Description : For efficient working of a control meter, its throat length is approximately kept (A) Equal to the critical depth (B) Twice the critical depth (C) Three times the critical depth (D) Four times the critical depth
Last Answer : Answer: Option C