Question

Name any two growth promoters which delay senescence.​

Answer 1

$\bigstar \: \boxed{\sf{\color{purple}{Answer:}}}$

Plant Growth Regulators :

Plant Growth Regulators are defined as small, simple chemicals produced naturally by plants to regulate their growth and development.

Characteristics :

• Plant Growth Regulators can be of a diverse chemical composition such as gases (ethylene), terpenes (gibberellic acid) or carotenoid derivates (abscisic acid). They are also referred to as plant growth substances, phytohormones or plant hormones. Based on their action, they are broadly classified as follows:

Plant Growth Promoters –

❍ They promote cell division, cell enlargement, flowering, fruiting and seed formation. Examples are auxins, gibberellins and cytokinins.

Plant Growth Inhibitors –

❍ These chemicals inhibit growth and promote dormancy and abscission in plants. An example is an abscisic acid.

Note: Ethylene can be a promoter or an inhibitor, but is largely a Plant Growth Inhibitor.

________________________________________________

$\sf\red{Thank\:you!}$

${\huge{\underline{\small{\mathbb{\pink{Hope\ it's \ help \ you♡}}}}}}$

$\sf\red{Be\:Brainly>}$

Answer 2

They promote cell division, cell enlargement, flowering, fruiting and seed formation. Examples are auxins, gibberellins and cytokinins. Plant Growth Inhibitors – These chemicals inhibit growth and promote dormancy and abscission in plants.