Description : Which of the following is controlled by Gibberellic Acid? a. Prevention of the loss of flowers b. Vegetative Growth c. Ripening of fruits d. Fruit fall
Last Answer : d. Fruit fall
Description : Consider the following pairs Plant hormone Function/Effect 1. Indole-3 acetic acid - Rooting in cuttings 2. Gibberellic acid - Stomatal closure 3. Ethylene - Fruit ripening 4. Zeatin - Cell division Which of the above pairs are correctly matched ... 3 (b) 1, 2, and 4 (c) 2 and 4 (d) 1, 2, 3, and 4
Last Answer : Ans:(b)
Description : Parthenocarpic tomato fruits can be producedby (a) treating the plants with phenylmercuric acetate (b) removing androecium of flowers before pollen grains are released (c) treating the plants with low concentrations of gibberellic acid and auxins (d) raising the plants from vernalized seeds
Last Answer : (c) treating the plants with low concentrations of gibberellic acid and auxins
Description : Nitrogen in vegetables is needed for a. Vegetative growth b. Ripening /maturity c. Reproductive growth d. None of these
Last Answer : Vegetative growth
Description : Which gas is produced after the application of Calcium Carbide to the fruits, for rapid ripening? a. Methane b. Carbon-di-oxide c. Acetylene d. Ethylene
Last Answer : c. Acetylene
Description : Dwarfness can be controlled by treating the plant with (a) cytokinin (b) gibberellic acid (c) auxin (d) anti-gibberellin.
Last Answer : (b) gibberellic acid
Description : Abscisic acid (ABA) is natural plant hormone, which: a. Promote the growth b. Initiate the ripening c. Induce the fruit maturity d. retards the growth
Last Answer : retards the growth
Description : Fruit and leaf drop at early stages can be prevented by the application of (a) ethylene (b) auxins (c) gibberellic acid (d) cytokinins.
Last Answer : (b) auxins
Description : Fruit and leaf drop at early stages can be prevented by the application of: (1) Ethylene (2) Auxins (3) Gibberellic acid (4) Cytokinins
Last Answer : (2) Auxins
Description : Which one of the following pairs, is not correctly matched? (a) Gibberellic acid - Leaf fall (b) Cytokinin - Cell division (c) IAA - Cell wall elongation (d) Abscissic acid - Stomatal closure
Last Answer : (a) Gibberellic acid - Leaf fall
Description : Edible Banana fruit is seedless because of — a. Embryo abortion b. Vegetative parthenocarpy c. Lack of pollination d. None of these
Last Answer : b. Vegetative parthenocarpy
Description : The only gaseous plant hormone which promotes fruit growth and ripening is?
Last Answer : Ethylene
Description : Plant tranquillisers (A) Hold back stem growth and halt plants at a desired height (B) Cause early maturation of plants (C) Accelerate ripening of food and grain (D) Produce seedless fruit
Last Answer : (A) Hold back stem growth and halt plants at a desired height
Description : Pruning in old fruit trees increases fruit bud formation by increasing ______: a. Carbohydrates b. New vegetative growth c. Hormonal contents d. Cell sap
Last Answer : New vegetative growth
Description : Which chemical is used in ripening fruits ?
Last Answer : : Ethylene Acetylene Bethylene Ethophene Calcium Carbide.
Description : Artificial ripening of fruits is accomplished by treatment with: (a) Sodium chloride (b) IAA (c) Ethylene gas (d) Kinetin
Last Answer : Ans. ((c))
Description : The hormone responsible for ripening of fruits is (a) Ethylene (b) Cytokinin (c) Auxin (d) ABA
Last Answer : Ans. ((a))
Description : Fruits experiencing simple gradual decline in the rate of respiration at the time of ripening.
Last Answer : Ans. Non-Climacteric Fruits
Description : Fruits experiencing sudden increase in the rate of respiration at the time of ripening.
Last Answer : Ans. Climacteric Fruits
Description : The gas used in the artificial ripening of fruits is – (1) Acetylene (2) Methane (3) Ethane (4) Butane
Last Answer : (1) Acetylene Explanation: Ripening is a process in fruits that causes them to become more palatable. In general, a fruit becomes sweeter, s less green, and softer as it ripens Even though the acidity ... to be picked prior to full ripening, which is useful, since ripened fruits do not ship well.
Description : Which gas is used for artificial ripening of green fruits?
Last Answer : Acetylene (ethyne) ORGANIC CHEMISTRY
Description : Which is employed for artificial ripening of banana fruits? (a) Auxin (b) Coumarin (c) Ethylene (d) Cytokinin
Last Answer : (c) Ethylene
Description : ____ fruits produce ethylene gas during ripening. a. Nonclimacteric c. Orange b. Climacteric d. Tree
Last Answer : b. Climacteric
Description : Which of the following statements are true? 1. Cytokinins promote stomatal opening 2. Sprays of indole -3 acetic acid can inhibit premature fruit fall 3. The growth movements caused by a unilateral stimulus are known as nastic movements 4. The ... 4 (b) 2 and 4 (c) 1, 2, and 4 (d) 1, 2, 3, and 4
Last Answer : Ans:(a)
Description : If a dwarf pea plant was treated with gibberellic acid, it became as tall, as tall pea plants. If these pea plants are crossed with pure tall pea plants, what will be the phenotypic ratio in F1 generation? ... (b) 50% tall and 50% dwarf plants (c) 75% tall and 25% dwarf plants (d) 100% tall plants
Last Answer : Ans. ((d))
Description : Which of the following plant hormone was first isolated from a fungus? (a) Ethylene (b) Gibberellic acid (c) Kinetin (d) Zeatin
Description : Seed dormancy is regulatedby – (1) Abscisic acid (2) Gibberellic acid (3) Indole acetic acid (4) Ethylene
Last Answer : (1) Abscisic acid Explanation: The transition from dormancy to germination in seeds is a key physiological process during the lifecycle of plants. Abscisic acid (ABA) is the sole plant ... acts through a gene expression network involving the transcription factor ABSCISIC ACID INSENSITIVE 3 (ABI3).
Description : Hormone primarily connected with cell division is (a) IAA (b) NAA (c) cytokinin/zeatin (d) gibberellic acid.
Last Answer : (c) cytokinin/zeatin
Description : Gibberellic acid induces flowering (a) in short day plants under long day conditions (b) in day-neutral plants under dark conditions (c) in some gymnospermic plants only (d) in long day plants under short day conditions
Last Answer : (d) in long day plants under short day conditions.
Description : Which one of the following acids is a derivative of carotenoids? (a) Indole-3-acetic acid (b) Gibberellic acid (c) Abscisic acid (d) Indole butyric acid
Last Answer : (c) Abscisic acid
Description : Which of the following is not an inhibitory substance governing seed dormancy? (a) Gibberellic acid (b) Abscisic acid (c) Phenolic acid (d) Para-ascorbic acid
Last Answer : a) Gibberellic acid
Description : Seed dormancy is regulatedby (1) Abscisic acid (2) Gibberellic acid (3) Indole acetic acid (4) Ethylene
Last Answer : Abscisic acid
Description : Edible part of cauliflower is : a. Flowers b. Flower bud c. Vegetative bud d. Inflorescence
Last Answer : Vegetative bud
Description : Floral features are chiefly used in angiosperm identification because (a) flowers can be safely pressed (b) reproductive parts are more stable and conservative than vegetative parts (c) flowers are nice to work with (d) flowers are of various colours.
Last Answer : (b) reproductive parts are more stable and conservative than vegetative parts
Description : Role of plant hormone in fruit ripening? -Biology
Last Answer : answer:
Description : Which gas is more responsible for ripening the fruit of the tree ?
Last Answer : Ethylene gas is more responsible for ripening tree fruit C2H4 .
Description : Which fruit helps in ripening ?
Last Answer : Ethylene and Calcium Carbide.
Description : Is it possible that, for example, in Sokolov there are cherries a month longer than in Brno?
Last Answer : it is possible, why not. depends on fruit sorte (early, late) weather. (tuxedo)
Description : PGR used for fruit ripening
Last Answer : Ans. Ethylene
Description : The gas used for artificial ripening of green fruit is - (1) ethane (2) ethylene (3) carbon dioxide (4) acetylene
Last Answer : (2) ethylene Explanation: Ethylene gas is used for artificial ripening of green fruit. Ethylene is a natural ripener, but it is also used as an artificial fruit ripener.
Description : The gas used for artificial ripening of green fruit is - (1) Acetylene (2) Ethylene (3) Ethane (4) Carbon dioxide
Last Answer : (2) Ethylene Explanation: Fruits such as apples and pears emit a greater amount of ethylene gas in fruits, which affects their ripening.
Description : The gas used for artificial fruit ripening of green fruit is – (1) Ethylent (2) Acetylene (3) Ethane (4) Methane
Last Answer : (1) Ethylent Explanation: Ethylene can promote ripening in tomatoes, bananas, citrus, pineapples, dates, persimmons, pears, apples, melons, mangos, avocados, papayas and jujubes - a ... with the specific biological phenomenon of accelerating the normal process of fruit maturation and senescence.
Description : The gas used for artificial fruit ripening of green fruit is – (1) Ethylene (2) Acetylene (3) Ethane (4) Methane
Last Answer : (1) Ethylene Explanation: Ethylene can promote ripening in tomatoes, bananas, citrus, pineapples, dates, persimmons, pears, apples, melons, mangos, avocados, papayas and jujubes - a ... with the specific biological phenomenon of accelerating the normal process of fruit maturation and senescence.
Description : The gas used for artificial ripening of green fruit is?
Last Answer : ethylene
Description : Which combination of gases is suitable for fruit ripening? (a) 80% CH4 and 20% CO2 (b) 80% CO2 and 20% O2 (c) 80% C2H4 and 20% CO2 (d) 80% CO2 and 20% CH2
Last Answer : (c) 80% C2H4 and 20% CO2
Description : Which hormone is responsible for fruit ripening? (a) Ethylene (b) Auxin (c) Ethyl chloride (d) Cytokinin
Last Answer : (a) Ethylene
Description : The gas used for artificial fruit ripening of green fruit is — (1) Ethylene (2) Acetylene (3) Ethane (4) Methane
Description : my egg plants gets flowers but then they fall off and dont set fruit?
Last Answer : too much rain and not good run off