physiology

2.  Ethephon is a plant growth regulator used to promote fruit
ripening, abscission, flower induction, and other responses.
 Ethephon is a synthetic compound which decomposes into
ethylene.
 Ethephon is registered for use on a number of food, feed and
nonfood crops, greenhouse nursery stock, and outdoor residential
ornamental plants, but is used primarily on Cotton.
 Other names
 Bromeflor
Arvest
Ethrel

4. The climacteric is a stage of fruit ripening associated with
increased ethylene production and a rise in cellular
respiration Apples, bananas, melon, apricot,
and tomatoes (among others) are climacteric fruit.
 Citrus, grapes, and strawberries are not climacteric (they
ripen without ethylene and respiration bursts).

6. Significant biochemical and physiological transformations,
such as changes in skin colour, internal flesh softening,
aroma development and sweetening.
 Structural changes such as cell-wall degradation, pigment
synthesis, and increases in both sugar and flavor.

8. Penetrates plant tissue and is decomposed to ethylene;
which affects growth processes.
 Restrain the growth of stem and leaves without affecting the
development of sexual organs. It can make the plant short
but strong with gathered trunk.
Ethephon penetrates into all tissues of the plants to which it
is applied and is metabolised to ethylene and phosphate and
chloride ions.