Question

gibberellin is also called germinating hormone. justify ​

Answer 1

Explanation:

Gibberellins (GAs) are plant hormones that regulate various developmental processes, including stem elongation, germination, dormancy, flowering, flower development and leaf and fruit senescence.GAs are one of the longest-known classes of plant hormone. It is thought that the (albeit unconscious) selective breeding of crop strains that were deficient in GA synthesis was one of the key drivers of the "green revolution" in the 1960's,a revolution that is credited to have saved over a billion lives worldwide

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Answer 2

Explanation:

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.