Comparative efficacy of different bio-chemical foliar applications on growth, yield and yield attributes of some wheat cultivars.

摘要

Production of wheat in old lands still not enough to meet the food demand of the ever-increasing population, so increase of areas and productivity of wheat in the new cultivated lands are considered one of the important ways for narrowing the wheat gap in Egypt. To achieve the aforementioned objectives, two field experiments were carried out at the Agricultural Production and Research Station, National Research Centre (NRC), El Nubaria Province, Egypt during the two successive winter seasons 2010/2011 and 2011/2012. The aim of this research was to study the impact of comparative efficacy of different bio-chemical foliar applications (Azospillium, nutrient solution and biocide) on growth, yield and yield attributes of some wheat cultivars (Sakha 93 and Sakha 94). The results show significant differences between the two cultivars at 90 and 120 days after sowing (DAS), except dry weight of spikes/m2 and dry weight of blades/m2 at 90 DAS as well as dry weight of blades/m2 and blades area/m2 at 120 DAS. Significant differences between Azospillium, nutrient solution and biocide compound were observed in all studied growth characters. Significant differences between wheat cultivars (Sakha 93 and Sakha 94) in most of studied characters of yield and yield attributes except, spike length, number of spikelets/spike, number of gains/spikelet, seed index, harvest index and seed protein content. Spraying wheat with Azospillium, nutrient solution and biocide compound shows significant differences in most yield and yield attributes except, number of grains/spikelet, seed index, harvest index and grain protein content The interaction effect between wheat cultivars (Sakha 93 and Sakha 94), Azospillium, nutrient solution and biocide compound shows significant differences in most yield and yield attributes except, spike length, number of spikelets/spike, number of grains/spikelet and harvest index.