Question

can anyone give me short note about plant hormones?

Answer 1

phytohormones are the organic substances which are synthesized in minute quantities in one part of the plant body and transported to another part where they influence specific physiological processes.
there are mainly 4 types of plant hormones
1.auxins
#promote elongation of cell.
#cell division
#root growth
2.gibberellins
#elongation of stem
#parthenocarpy (formation of seedless fruits without fertilization)
#seed germination
3.cytokinins
#cell division
#breaking of dormancy
#delay of senescence
4.abscisic acid
#act as growth inhibitor
#stomatal closing
#seed development

Answer 2

These hormones help in regulation of the plant body by responding to the various signals from the plant and environment. The hormones are regulated in different tissues during the different development stages. There are five major hormoneswhich are auxin, cytokinin, gibberellin, abscisic acid, and ethylene.

Plant hormones are signal molecules produced within plants, that occur in extremely low concentrations. Plant hormones control all aspects of growth and development, from embryogenesis, the regulation of organ size, pathogen defense, stress tolerance and through to reproductive development. 

There are five general classes of hormones: auxins, cytokinins, gibberellins, ethylene, and abscisic acid.