OBJECTIVE FORESTRY

FORESTRY

SOIL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which plant growth regulator is applied to fields of fruit allowing them to ripen at the same time for harvest?
A
abscisic acid
B
ethylene
C
auxins
D
gibberelins
Explanation: 

Detailed explanation-1: -Ethephon is a plant growth regulator used to promote fruit ripening, abscission, flower induction, and other responses.

Detailed explanation-2: -Plants often increase ethylene production in response to stress, and ethylene often is found in high concentrations within cells at the end of a plant’s life. The increased ethylene in leaf tissue in the fall is part of the reason leaves fall off trees. Ethylene also is used to ripen fruit (e.g., green bananas).

Detailed explanation-3: -Abscisic acid (ABA) and ethylene are the major regulators of ripening and senescence in both dry and fleshy fruits, as demonstrated by numerous ripening-defective mutants, effects of exogenous hormone application, and transcriptome analyses.

Detailed explanation-4: -Ethylene. Ethylene is a simple, gaseous plant growth regulator, synthesised by most of the plant organs includes ripening fruits and ageing tissues.

Detailed explanation-5: -The gaseous hormone ethylene plays a key role in plant growth and development, and it is a major regulator of stress responses. It inhibits vegetative growth by restricting cell elongation, mainly through cross-talk with auxins.

There is 1 question to complete.