LATEST UPDATED PCA PLANT GROWTH REGULATORS
REAL EXAM WITH GRADED ANSWERS
The primary uses of the growth inhibitor ancymidol - answer-
greenhouse and nursery plants-inhibits the synthesis of gibberellin
resulting in reduced cell elongation and internode compression making
shorter plants
The primary uses of the growth inhibitor chlormequat - answer-wheat,
greenhouse and nursery plants-inhibits the synthesis of gibberellin
resulting in reduced cell elongation and internode compression making
shorter plants
The primary uses of the growth inhibitor mepiquat chloride - answer-
cotton-increases boll retention, reduces vegetative growth and
stimulates earlier maturity
The 'classical' five naturally occurring plant hormone groups - answer-
auxins, cytokinins, ethylene, gibberellins, abscisic acid
The primary physiological processes regulated by auxins - answer-cell
enlargement, cell expansion, stimulates production of ethylene,
promotes or delays abscission, and initiates adventitious roots
, The primary physiological processes regulated by cytokinins - answer-
cytokinesis, tissue differentiation, budbreak, apical dominance, delays
senescence, and promotes cotyledon expansion
The primary physiological processes regulated by ethylene - answer-
ripening of fruits, breaks dormancy, promotes abscission
The primary physiological processes regulated by gibberellins - answer-
cell division, cell elongation, cell enlargement, improves fruit set and
enlargement, induces parthenocarpy, and plays a role in seed and bud
dormancy
The primary physiological processes regulated by growth
retardants/inhibitors - answer-biosynthesis inhibitors, terminal bud
inhibitors, ethylene synthesis inhibitors
Auxins - answer-class of naturally occurring plant growth substances
essential to cell differentiation, division, and enlargement
IAA (3-indoleacetic acid) - answer-the most important auxin, acts as
both a stimulator and inhibitor
REAL EXAM WITH GRADED ANSWERS
The primary uses of the growth inhibitor ancymidol - answer-
greenhouse and nursery plants-inhibits the synthesis of gibberellin
resulting in reduced cell elongation and internode compression making
shorter plants
The primary uses of the growth inhibitor chlormequat - answer-wheat,
greenhouse and nursery plants-inhibits the synthesis of gibberellin
resulting in reduced cell elongation and internode compression making
shorter plants
The primary uses of the growth inhibitor mepiquat chloride - answer-
cotton-increases boll retention, reduces vegetative growth and
stimulates earlier maturity
The 'classical' five naturally occurring plant hormone groups - answer-
auxins, cytokinins, ethylene, gibberellins, abscisic acid
The primary physiological processes regulated by auxins - answer-cell
enlargement, cell expansion, stimulates production of ethylene,
promotes or delays abscission, and initiates adventitious roots
, The primary physiological processes regulated by cytokinins - answer-
cytokinesis, tissue differentiation, budbreak, apical dominance, delays
senescence, and promotes cotyledon expansion
The primary physiological processes regulated by ethylene - answer-
ripening of fruits, breaks dormancy, promotes abscission
The primary physiological processes regulated by gibberellins - answer-
cell division, cell elongation, cell enlargement, improves fruit set and
enlargement, induces parthenocarpy, and plays a role in seed and bud
dormancy
The primary physiological processes regulated by growth
retardants/inhibitors - answer-biosynthesis inhibitors, terminal bud
inhibitors, ethylene synthesis inhibitors
Auxins - answer-class of naturally occurring plant growth substances
essential to cell differentiation, division, and enlargement
IAA (3-indoleacetic acid) - answer-the most important auxin, acts as
both a stimulator and inhibitor
