A class of plant growth substance (often called phytohormones or plant hormones) which play an essential role in coordination of many growth and behavioral processes in the plant life cycle
Natural or synthetic substances with an hormonal activity , inducing plant phototropism, i e their light preferential orientation
a plant hormone, also called IAA, responsible for cell elongation, fruit development, and formation of adventitious roots
substances found in places such as plant sprouts and human urine which stimulates growth in plant tissues promoting root formation
Natural hormone produced in the apical regions (the tips of the stems) Auxin inhibits growth of lateral buds (those on the sides of the stem) This is why when you cut the top of the stem, the side shoots grow
Any of a group of hormones that regulate plant growth, particularly by stimulating cell elongation in stems and inhibiting it in roots. Auxins influence the growth of stems toward light (phototropism) and against the force of gravity (geotropism). Auxins also play a role in cell division and differentiation, fruit development, the formation of roots from cuttings, the inhibition of lateral branching, and leaf fall. The most important naturally occurring auxin is beta-indolylacetic acid