Home › CBSE Class 11 (Science) › Biology › Plant Growth and Development › Which PGR is made in large amounts by ripening f…
Which PGR is made in large amounts by ripening fruits and senescing tissues?
AZeatin hormone
BIndole acetic acid
CEthylene gas
DGibberellins
Answer & Solution
Correct answer: C. Ethylene gas
Ethylene is a gaseous PGR synthesised abundantly by senescing tissues and ripening fruits.
Related questions
In most situations ABA acts as an antagonist to which PGR?Which PGR stimulates closure of stomata?Why is abscisic acid called the stress hormone?Which PGR keeps deep water rice leaves above water by rapid internode growth?Which compound is most widely used as a source of ethylene?Which PGR helps delay leaf senescence by promoting nutrient mobilisation?Kinetin was discovered from which source?Spraying juvenile conifers with GAs has what effect?