-Auxin is manufactured by the shoot tip; and translocated to other part of plant where it stimulate growth;
- High auxin concentration stimulate growth on the shoot; but inhibit growth of the growth;
- Movement of auxin is influenced by gravity; The lower part of a plant has high auxin concentration than the upper part;
- Part of the shoot with high auxin concentrating grows more; than the part with low auxin concentration; which make the shoot to curve upward; this is negative geotropism ;
- High auxin concentration in the root inhibit growth while low auxin concentration stimulate root growth; part with low auxin concentration grows more than the part with the high auxin concentration and hence are root curves downwards; This is positive geotropism;
sharon kalunda answered the question on May 29, 2019 at 06:57
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