Question

Role of plant growth hormone ?

Answer 1

ANSWER

Plant hormones are chemicals plants use for communication, coordination, and development between their many cells. Like animals, plants rely on these chemical signals to direct the expression of DNA and the operations of the cell. Plant hormones are natural substances which control many aspects of plant development.

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Answer 2

Importance of plant hormones. The small amounts of plant hormones promote, control, influence and develop the growth from embryo to reproductive development, also, stress tolerance and pathogen defense

Plant hormones affect gene expression and transcription levels, cellular division, and growth. ... They are used to regulate the growth of cultivated plants, weeds, and in vitro-grown plants and plant cells; these manmade compounds are called plant growth regulators or PGRs for short.

the chemicals that regulate plant growth are called Plant Hormones. There are five hormones found in plants namely auxins, gibberellins, cytokinins, abscisic acid or ABA and ethylene.