Effect of gibberellin hormone on parley plant growth treated with different concentrations of seawater.

Abstract

This research was carried out for the purpose of studying the soaking and spraying of the barley plant L. Hordum vulgare (a local variety) with the hormone gibberellin at a concentration of 35 ppm for soaking, and a concentration of 14 ppm for spraying on some phenotypic characteristics of barley plants treated irrigated with different concentrations of sea water (0, 30, 60, 80, and 100%).Growth parameters were used as an indicator of the response of barley plants to treatment with the hormone, which are the number of leaves, stem length, relative dry weight of the plant, and proline. The results showed that salinity has a negative effect on all metrics used. While treating barley plants by soaking and spraying with two concentrations of the hormone gibberellin led to an increase in the number of leaves, stem length, proline content and relative dry weight of plants growing in different concentrations of sea water.