Evaluation the Response of Two Durum Wheat Varieties for Foliar Spray Using Micronutrients Solution during Different Developmental Stage

Abstract

A field experiment was carried out to study the influence of foliar spray with a micronutrients solution during different developmental stages on growth and productivity of two durum wheat varieties (Douma1 and Cham9), under rainfed conditions in Agricultural Research Center in AL-Ghab region. The experiment was laid according to randomized complete block design (RCBD) with split-split arrangement and three replications. The average spike dry weight, 1000-kernel weight, grain yield, harvest index and rainwater use efficiency was significantly higher in the variety Douma1 when plants were sprayed during heading and flowering stages together (0.559 g, 43.47 g, 6.222 ton ha^-1, 36.70% and 10.34 kg grains mm^-1 water year^-1 ha^-1 respectively). In general, the variety Douma1 was more responsive to the foliar spray with the micronutrient solution, especially during the heading and anthesis stages together compared with Cham9 variety. It is recommended to cultivate Douma1 because it performed very well and was superior in all the investigated traits, especially grain yield related traits and its components and was also more efficient in rainwater utilization.