Effect of Gibberellic acid and Proline acid on growth parameters and yield component of pea plant Pisum sativum L.

Abstract

The experiment was conducted in the wooden canopy in the botanical garden of Biology Department , College of Education for pure science – Ibn AL – Haitham , Baghdad University using clay pots to investigate the effect of foliar spraying with Gibberellic acid in three concentrations (0 ,50 and 100) mg. L¹­ and three concentrations of Proline acid(0, 25 and 50)mg. L¹­ and their interactions on some vegetative growth as (the content of nitrogen ,phosphorous, calcium and total chlorophyll) and some yield components as ( the lentght of pods , no. of pods . plant¹­ , no. of seeds . Plant¹­ , wt . of seeds . plant¹­ )and the percentage of protein of the seeds of pea plant . The experiment was designed according to Completely Randomized Design(CRD) with three replications. Results indicated that, foliar spraying with Gibberellic and Proline acid caused a significant increase in all growth parameters , and the interaction caused a significant effect where the concentration 100 mg. L¹­ Gibberellic acid and the concentration 50 mg. L ¹­Proline acid gave the best values for the content of the elements , the length of pods . no. of pods . plant¹­ but the concentration 50mg. L ¹­ Gibberellic acid and the concentration 50mg. L ¹­ Proline acid gave the best value for the content of total chlorophyll on the other hand, the treatment 50mg. L¹­ Gibberellic acid and 25 mg. L¹­ Proline acid gave the highest values for wt. of seeds . plant¹­ , the best value for the seeds protein was in the concentration 100 mg. L ¹­ Gibberellic acid and the concentration 25 mg. L¹­ Proline acid.