Description : The physiological response of plants in relation to length of light
Last Answer : Ans. Photoperiodism
Description : Plants that flower after reaching a certain stage of development irrespective of the day length are called: (a) Day-neutral plants (b) Long-day-short-day plants (c) Negatively phototrophic plants (d) Long-day plants
Last Answer : Ans:(a)
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 : 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 : Short term loan is given for
Last Answer : Ans. 1 to 1½ years
Description : The temperature at which highest percentage of seed germination occurs in short period of time
Last Answer : Ans. Optimum temperature
Description : Deficiency appears as short internodes in plant.
Last Answer : Ans. N
Description : The ratio of height, width and length in shelterbelt system
Last Answer : Ans. 1:25:10 meter
Description : A pruning process in which a circular ring of bark measuring about 3 cm in length is removed.
Last Answer : Ans. Ringing/Girdling
Description : The Heterotrophs, feed on both plants and meats?
Last Answer : Ans. Omnivores
Description : The Heterotrophs, feed on plants and called primary consumers?
Last Answer : Ans. Herbivores
Description : The plants, which produce food themselves through photosynthesis?
Last Answer : Ans. Phototrophs
Description : A self supporting community - plants and animals interacting with each other and the nonliving environment to provide a balanced system is a
Last Answer : Ans. Ecosystem
Description : A group of ornamental plants used to grow over walls, trellis, arches, pergolas, arbours, pillars, bowers etc.
Last Answer : Ans. Climbers and Creepers
Description : The arrangement of colourful potted plants in different tiers around a central object which may be tree trunk, lamp post or pillar.
Last Answer : Ans. Trophy
Description : Planting of low growing plants along with paths, roads, flower beds, lawns etc. for demarcation and beautification
Last Answer : Ans. Edge
Description : Removal of any excess or undesirable/unproductive branches, shoots or any other parts of plants
Last Answer : Ans. Pruning
Description : The science of growing flower and ornamental plants.
Last Answer : Ans. Floriculture/Ornamental horticulture
Description : The science of growing of fruits, vegetables, ornament plants and preservation of foods
Last Answer : Ans. Horticulture
Description : Pink stem borer attacks to plants in
Last Answer : Ans. Night
Description : The region of plants in which translocated food is utilized or immobilized
Last Answer : Ans. Sink
Description : The region of plants in which food to be translocated originates
Last Answer : Ans. Source
Description : PGR related to drought tolerance and stress hardness in plants
Last Answer : Ans. Abscisic acid
Description : The element which takes part in the growth and development of plants
Last Answer : Ans. Plant nutrients
Description : The growth rate of plants is measured by
Last Answer : Ans. Auxanometer and Crescograph
Description : Oxygen is required by the plants for
Last Answer : Ans. Respiration
Description : C4 plants normally give more biological yield than C3 plants because of
Last Answer : Ans. Less respiration
Description : The photosynthetic rate of C4 is …….. than C3 plants
Last Answer : Ans. Low
Description : The water use efficiency of C4 is …….. than C3 plants
Last Answer : Ans. High
Description : The example of CAM plants are
Last Answer : Ans. Pineapple and Opuntia
Description : C4 plants have
Last Answer : Ans. Kranz type leaf
Description : The most important enzyme involved in photosynthetic CO2 fixation in C4 plants
Last Answer : Ans. PEP carboxylase
Description : C4 plants are
Last Answer : Ans. Maize, Sorghum, Sugarcane, millets etc.
Description : The most important enzyme involved in photosynthetic CO2 fixation in C3 plants
Last Answer : Ans. Rubisco
Description : C3 plants are
Last Answer : Ans. Rice, Wheat, Pea, Soybean etc
Description : The product of photosynthesis which is used for growth and development of plants
Last Answer : Ans. Glucose
Description : Pigment which are responsible for photosynthesis in higher plants
Last Answer : Ans. Chlorophyll a and b
Description : The process by which plants convert light energy of photon (captured from sunrays) into chemical energy
Last Answer : Ans. Photosynthesis
Description : Minerals are translocated in plants as
Last Answer : Ans. Both organic and inorganic compounds
Description : Nutrients absorbed by plants from soil solution are carried upward through the
Last Answer : Ans. Xylem
Description : Water is absorption by plants mainly through
Last Answer : Ans. Root hairs
Description : Crossing of plants through fusion of somatic cell
Last Answer : Ans. Somatic hybridization
Description : Multiplication of cell of large number of plants placed in appropriate environment conditions with required nutrients is known as
Last Answer : Ans. Plant tissue or in vitro culture
Description : A condition in which either pollen is absent or non functional in flowering plants.
Last Answer : Ans. Male Sterility
Description : When male and female flowers occur on different plants
Last Answer : Ans. Diocious
Description : A method in which desirable scattered favourable genes are selected in different plants in each generation
Last Answer : Ans. Recurrent selection
Description : The science, which helps in changing the genetic make-up of plants in such a way that they give rise to the maximum economic product for human use.
Last Answer : Ans. Plant Breeding
Description : Which plastid of cell is responsible for storage of starch and fat in plants?
Last Answer : Ans. Leucoplast
Description : Which plastid of cell is responsible for colour in plants?
Last Answer : Ans. Chromoplast
Description : Which plastid of cell is responsible for photosynthesis in plants?
Last Answer : Ans. Chloroplast