What are the effects of plant auxin?

What are the effects of plant auxin? What are the main types? Please also know the netizens to help introduce the common plant auxins on the market now are mainly β-indoleacetic acid, brassin, cytokinin, gibberellin, sodium naphthalene acetate, amine fresh ester (DA-6), etc., farming network collated the role of plant auxin, the following detailed list for netizens' reference. The role of plant auxin: a hormone that regulates the direction of plant growth produced by regions of cells that divide and increase activity. It relaxes the cell wall of plants, resulting in cell growth, and increases the synthesis of RNA and proteins in many plants. A class of hormones that regulate plant growth, especially those that stimulate the longitudinal growth of cells in the stem and inhibit the lateral growth of cells in the root. Types of plant auxins: 1. growth promotion: this kind of plant auxins mainly promote crop cell division, elongation and differentiation, break crop dormancy, promote flowering, delay organ shedding, keep aboveground parts green, delay crop senescence, in order to improve crop resistance under stress, promote plant growth, increase nutrient yield and increase fruit setting rate. Promote fruit expansion, increase the weight of crop fruit and other effects. Second, growth inhibition: there are auxin conduction inhibitors, growth retarders, growth inhibitors, ethylene releasing agents and abscisic acid, etc. The main results are as follows: 1. Long element conduction inhibitors promote the growth of crop lateral branches and buds mainly by inhibiting crop apical dominance. 2. Growth retarder retards growth mainly by inhibiting the activity of apical meristem of crop stem. 3. The effect of growth inhibitor is mainly to inhibit the growth of apical bud by destroying the activity of apical meristem, but unlike growth retarder, plants can restore apical growth after a certain period of time. 4. Ethylene releasing agent is used to inhibit cell elongation, cause lateral growth, and promote fruit ripening, senescence and shedding of vegetative organs. 5. The main function of abscisic acid is to promote the shedding of leaves and fruits. What is swelling hormone and what is gibberellin (920)