Tag: plant growth

Stress hormone is a hormone produced during adverse environmental conditions. Abscisic acid (ABA) is called as stress hormone. Due to this hormone, plants respond to stresses conditions like cold, drought. Stomatal closure under stress condition is due to this hormone. It also promotes seed dormancy under adverse condition.

Abscisic acid a plant hormone that plays important role abscission of leave. It inhibits stem elongation by inhibiting gibberellic acid. It prevents loss of dormancy in seeds. 

During ripening process, plants produce ethylene gas. To prevent overripening of bananas, the chemical reaction of ripening process needs to slow down. Cold temperatures will slow down the reaction and hence delay the ripening of banana. However, storing in freezer will slow down the ethylene emission more than refrigerating it.

Ethylene is a gaseous plant hormone. It is also called as ripening hormone. It is used externally to accelerate the fruit ripening process. Also during ripening process, controlled amount of carbon dioxide and oxygen is needed. For artificially ripening fruit, 80% C$ _2$H$ _4$ and 20% CO$ _2$ is used.

Abscisic acid is a plant hormone. It is also called as stress hormone. It causes abscission of leaves. During stress environmental condition, its concentration increases and induces bud dormancy. When favorable condition returns, bud dormancy is broken.

Ethylene is a plant growth regulator. It is also called as ripening hormone as it is responsible for speeding up ripening of fruits. Fruit ripening is accompanied by increase rate of respiration. Due to increased respiration, complex carbohydrates are broken down into simpler sugars and cell wall becomes soft. 

Abscisic acid is a plant hormone. It is also called as stress hormone. During stress condition like drought, abscisic acid concentration increases in plants. It inhibits cell division and induces bud dormancy. It also helps in abscission of leaves and hence the name given. It also stimulates senescence in plant.

Abscisic acid is a phytohormone which act as plant growth inhibitor. It is used to maintain the dormancy of seed. It inhibits the germination of seeds in adverse condition and ensures seed germination in favourable condition only.

Ethylene is a plant hormone. It is also called as ripening hormone as it is responsible for ripening of fruits. Fruit ripening is accompanied by increase rate of respiration. Due to increased respiration, complex carbohydrates are broken down into simpler sugars and cell wall becomes soft. It inhibits cell division. 

Stress hormone is a hormone produced during adverse environmental conditions. Abscisic acid (ABA) is called as stress hormone. Due to this hormone, plants respond to stresses conditions like cold, drought. It increases the tolerance of plants toward various stresses. It is found in high concentration in roots during drought and later translocated to leaves. It causes stomatal closure during water stress. It also promotes seed dormancy under adverse condition.