Description : Physiological aging activity in which plant tissues degenerate and ultimately die is called a. Senescence b. Ripening c. Climacteric d. Degeneration
Last Answer : Senescence
Description : Senescence is a stage of a. Tissue decay b. Tissue multiplication c. Tissue vigour d. Tissue ripening
Last Answer : Tissue decay
Description : Degeneration of above ground parts in ginger is due to Senescence Maturity Partial senescence Over ripening
Description : Leaf senescence can be retarded by the application of : a. Auxins b. Gibberellins c. Kinins d. Abscicic acid
Last Answer : Kinins
Description : Internal browning in apples takes place due to _______: a. Fungus b. High temperature c. Hail storm d. Bacteria
Last Answer : High temperature
Description : Date fruit for curring is harvested at: a. Rutab stage b. Tamar stage c. Dung stage d. None
Last Answer : Rutab stage
Description : In Pakistan, vegetables for seed production are harvested by: a. Manual method b. Machines c. Combine harvestors d. All of above
Last Answer : Manual method
Description : Water melon for seed should be harvested when a. Tendrils wither b. Skin color is green c. Skin color is pale yellow d. Vine dry out
Last Answer : Tendrils wither
Description : The acceleration of flowering by manipulating environmental conditions is known as: a. Pulsing b. Forcing c. Leaching d. After-ripening
Last Answer : Forcing
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 : Nitrogen in vegetables is needed for a. Vegetative growth b. Ripening /maturity c. Reproductive growth d. None of these
Last Answer : Vegetative growth
Description : Consider the following statements associated with the germination of an angiospermous seed: (1) As the seed gets hydrated and germinates, enzymatic activity is increased (2) The respiration ... The increase in the respiratory rate continues till senescence (4) Rate of enzymatic activity decreases
Last Answer : Ans. ((b))
Description : In plants, __________ is the process of converting stored energy into energy for plant growth. a. Transpiration b. Photosynthesis c. Respiration d. Pollination
Last Answer : Respiration
Description : Chlorophyll formation takes place within a light wavelength of _________: a. 150-200 b. 200-300 c. 300-675 d. 700-900
Last Answer : 300-675
Description : The loss of water in the form of vapor from the surface of plant leaves is referred to as: a. Transpiration b. Respiration c. Oxidation d. Condensation
Last Answer : Transpiration
Description : Why is respiration called metabolic process ?
Last Answer : In the process of respiration, complex foodstuffs (organic compounds) are broken down into simpler ingredients (inorganic compounds). This reduces the dry weight of the cell and releases energy , so respiration is called catabolic metabolism .
Description : The energy-releasing metabolic process in which substrate is oxidised without an external electron acceptor is called (a) glycolysis (b) fermentation (c) aerobic respiration (d) photorespiration.
Last Answer : (b) fermentation
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 : Failure of a bulb to produce a marketable flower following floral initiation is: a. Disbudding b. Flower blasting c. Damping off d. Dieback
Last Answer : Flower blasting
Description : In temperate climates, pruning should not be done near the end of the summer because: a. New growth will not harden before winter b. It may increase foliage disease c. Plants will not recover in time to produce new growth before winter d. Sever “bleeding” from the cuts will kill the plant
Last Answer : New growth will not harden before winter
Description : A technique to produce well branched, compact plants with many flowers is: a. Stunting b. Compacting c. Pinching d. Potting
Last Answer : Pinching
Description : Self fertility refers to the ability of a variety to produce fruits with viable ___: a. Pollens b. Seeds c. Ovules d. Ovaries
Last Answer : Seeds
Description : Cross pollinated in apple generally produce a. Bad results than self pollinated b. Better results than self pollinated c. Same results as self pollinated d. Non of these
Last Answer : Better results than self pollinated
Description : Low temperature helps to _________ growth inhibitors: a. Increase b. Decrease c. Store d. Produce
Last Answer : Decrease
Description : Which type of flowers can not produce seeds and / or fruit? Pistillate Perfect Hermaphrodite Staminat
Last Answer : Staminat
Description : Tetraploid watermelon must be pollinated by ____ plants to produce a seedless watermelon a. Triploid b. Aneuploid c. Diploid d. Tetraploid
Last Answer : Diploid
Description : Flowers having stigma below the highest anthers are called _______: a. Apistigmatic b. Hypostigmatic c. Peristigmatic d. Exostimgatic
Last Answer : Apistigmatic
Description : Annual bearing apples differentiate much greater proportion of their flowers on _______: a. Spurs b. Shoots c. Leaf axils d. Main stem
Last Answer : Shoots
Description : At fruit bud differentiation in mango, C/N ratio is _______: a. Low b. Medium c. High d. Very High
Last Answer : High
Description : More harmones are accumulated in plants due to accumulation of _______: a. Nitrate b. Starch c. Protein d. Vitamins
Last Answer : Starch
Description : Tip burn of lettuce occurs at high air temperature when the soil is _______: a. Cool b. Dry c. Hot d. Wet
Last Answer : Cool
Description : For hybrid seed production _______ flowers are completely suppressed on female plants. a. Staminate b. Pistillate c. Staminode d. Alternat
Last Answer : Staminate
Description : Which process is involved in the senescence of fruits and vegetables?
Last Answer : Ans. Respiration
Description : The process of growth is maximum during (a) log phase (b) lag phase (c) senescence (d) dormancy.
Last Answer : (a) log phase
Description : Respiratory acidosis is that in which the blood pH is low due to increased retention of carbon dioxide caused by the lowering of the respiratory frequency or by pulmonary diseases that impair ... caused by metabolic disturbances that increase the concentration of bases (alkalis) in the blood.
Last Answer : Where are the chemoreceptors that detect the acidity of the blood and trigger the respiratory compensation located?
Description : The site of enzymes directing the metabolic oxidation (respiration), ATP synthesis and considered as power house of cell are (A) Lysosomes (B) Microsomes (C) Mitochondria (D) Golgi apparatus
Last Answer : (C) Mitochondria
Description : what does soil need to produce the new potatoe flavor and to stop them from boiling away when harvested
Last Answer : we use mulch, lime and good soil and some hay mixed in with the cultivator.............before planting...............old soil gets worn out
Description : A major problem in standard carnation production resulting in asymmetrical flowers is: a. Improper fertilization b. High-density spacing c. Calyx splitting d. Lack of pinching
Last Answer : Calyx splitting
Description : The major auxin produced in plants is: a. Indole-3-butyric acid (IBA) b. Naphthalene acetic acid (NAA) c. Indole-3-acetic acid (IAA) d. Ethylene
Last Answer : Indole-3-acetic acid (IAA)
Description : Which of the following is not among the major principles of design? a. Balance b. Scale c. Emphasis d. Price
Last Answer : Price
Description : Yellow wasp is a major pest of: a. Grape fruit b. Peach fruit c. Citrus fruit d. Mango fruit
Last Answer : Grape fruit
Description : Major types of greenhouse are a. Even span b. Lean to c. Odd span d. a & b
Last Answer : a & b
Description : Major insect attacking the summer crop of guava during summer crop is : a. White fly b. Fire fly c. Fruit fly d. Drosophilla fly
Last Answer : Fruit fly
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 : ____ fruits produce ethylene gas during ripening. a. Nonclimacteric c. Orange b. Climacteric d. Tree
Last Answer : b. Climacteric
Description : Your information and I.D. gets harvested from a major hack from someplace you do business with, how much can anyone really take from you?
Last Answer : Currently, about $3.78. But my bank is awesome about reversing unauthorised purchases.
Description : Plant hormone that can delay senescence. -Biology
Last Answer : answer:
Description : The senescence is delayed by
Last Answer : Ans. Cytokinin
Description : Which of the following plant hormones are incorrectly paired? (1) abscisic acid- transpiration (2) auxins- apical dominance (3) cytoldnins- senescence (4) gibberlins- bud and seed dormancy
Last Answer : (4) gibberlins- bud and seed dormancy Explanation: Abscisic acid is responsible for responsible for dormancy of various types. It maintains dormancy in seeds and buds, stimulates the closing of stomata. Gibberellins are responsible for cell division and growth in cell size.