Description : ________ have ability to alter the sex of the flowers: a. Auxins b. Gibberellins c. Kinins d. None of above
Last Answer : Gibberellins
Description : Hormones which control apical dominance are: a. Auxins b. Cytokinins c. Gibberellins d. Polyamines
Last Answer : Cytokinins
Description : Leaf senescence can be retarded by the application of : a. Auxins b. Gibberellins c. Kinins d. Abscicic acid
Last Answer : Kinins
Description : Direction of plant growth is controlled by: a. Auxins b. Gibberellins c. Kinins d. All of above
Last Answer : Auxins
Description : Compounds possessing hormone like properties which have small molecular weight, are termed as : a. Auxins b. Gibberellins c. Kinins d. None of these
Description : Which of the following control the root initiation, cell elongation and apical dominance? (A)Auxins (B) ABA (C) Gibberellins (D) Ethylene
Last Answer : (D) Ethylene
Last Answer : (B) ABA
Description : Many _________ in super optimal concentrations also act as growth inhibitors : a. Auxins b. Gibberellins c. Cytokinins d. All of above
Description : Apical dominance lateral buds. -Biology
Last Answer : answer:
Description : $ Those lateral buds which are near the apical bud are called dormant buds. ! Dormancy of lateral buds is due to Apical dominance
Last Answer : $ Those lateral buds which are near the apical bud are called dormant buds. ! Dormancy of lateral buds is ... is wrong D. If both As and R are wrong.
Description : Apical dominance is caused by (a) abscisic acid in lateral bud (b) cytokinin in leaf tip (c) gibberellin in lateral buds (d) auxin in shoot tip.
Last Answer : (d) auxin in shoot tip.
Description : Role of auxins in apical dominance? -Biology
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.
Description : Which of the following plant hormones are incorrectly paired? (1) abscisic acid- transpiration (2) auxins-apical dominance (3) cytokinins- senescence (4) gibberlins- bud and seed dormancy
Last Answer : gibberlins- bud and seed dormancy
Description : How does pruning help in making the hedge dense? (a) It releases wound hormones. (b) It induces the differentiation of new shoots from the rootstock. (c) It frees axillary buds from apical dominance. (d) The apical shoot grows faster after pruning
Last Answer : (c) It frees axillary buds from apical dominance.
Description : Mowing grass lawn facilitates better maintenance because (a) wounding stimulates regeneration (b) removal of apical dominance and stimulation of intercalary meristem (c) removal of apical dominance (d) removal of apical dominance and promotion of lateral meristem.
Last Answer : (b) removal of apical dominance and stimulation of intercalary meristem
Description : Apical bud becomes ________ in mango at fruit bud differentiation : a. Flattened b. Rounded c. Dome shaped d. Elongated
Last Answer : Dome shaped
Description : In higher plants the growing apical bud inhibits the growth of the lateral (axillary) buds, this phenomenon is called
Last Answer : In higher plants the growing apical bud inhibits the growth of the lateral (axillary) buds, this phenomenon is called
Description : If the apical bud has been removed then we observe (a) more lateral branches (b) more axillary buds (c) plant growth stops (d) flowering stops.
Last Answer : (a) more lateral branches
Description : Difference between auxins and gibberellins? -Biology
Description : Cut or excised leaves remain green for long if induced to root or dipped in (a) gibberellins (b) cytokinins (c) auxins (d) ethylene.
Last Answer : (b) cytokinins
Description : The following is not a plant growth regulator a) Acetic acid b) Auxins c) Gibberellins d) Ethylene
Last Answer : a) Acetic acid
Description : Auxins as herbicides are supposed to be: a. Non toxic to animals and human beings b. Highly selective c. Exert their action at extremely low concentration d. All of the above
Last Answer : All of the above
Description : Auxins have effective role in : a. Delay in flower opening b. Cell division c. Reduction of pre harvest fruit drop d. All of the above
Last Answer : Reduction of pre harvest fruit drop
Description : Factors involved in the formation of auxins are: a. Age of apex b. Light c. Zinc d. All of the above
Description : The compounds which inhibit the activity of auxins are known as: a. Auxin antagonists b. Antiauxins c. Epinostic agent d. All of above
Last Answer : Antiauxins
Description : Auxin antagonists compounds interact with auxins as: a. Counteract b. Increase c. Decrease d. None of the above
Last Answer : Counteract
Description : Plants, protein, RNA, DNA contents are increased by a. Auxins b. Adenine c. Cytokinins d. None of above
Description : Two basic types of pruning are heading-back and thinning-out. Which of the following is true about these pruning methods? a. Thinning cuts leave behind a good portion of the stem and many axillary buds. ... leave no buds. d. Heading cuts remove a portion of the stem and only terminal buds are lef
Last Answer : Thinning cuts are made close to a main branch or ground and few axillary buds are left
Description : Hard, thorny structures which protect the buds of woody plants during winter, are termed as: a. Nodes b. Scales c. Bracts d. None of all
Last Answer : Scales
Description : Removal of young flower buds to allow maximum development of the remainder is termed as: a. Die back b. Disbudding c. Dead heading d. None of these
Last Answer : Disbudding
Description : Pinching out is the removal of a. Growing point of root b. Opening flower buds c. Growing point of buds d. Removal of seeds
Last Answer : Growing point of bud
Description : Apple and pear form their flowers buds in ___________: a. May-June b. July-August c. September-October d. November-December
Last Answer : July-August
Description : In some plants the buds contain both leaves and flowers and known as a. Leaf buds b. Flower buds c. Scaly buds d. Mixed buds
Last Answer : Mixed buds
Description : The bud which develop into the axils of a leaf is a. Axillary buds b. Terminal buds c. Adventitious buds d. Naked buds
Last Answer : Axillary buds
Description : Bearing habit of mango is a. Terminal b. Lateral c. Axillary d. Basal
Last Answer : Terminal
Description : What is apical dominance? -Biology
Description : Advantage of apical dominance to a plant? -Biology
Description : Apical dominance can be removed by? -Biology
Description : Why is apical dominance adaptive? -Biology
Description : What controls apical dominance? -Biology
Description : Apical dominance of potato. -Biology