Effect of seed Priming and Foliar Application of Zinc on Yield and Yield Components of two wheat Cultivars

Document Type : Research Paper

Authors

Abstract

In order to study the effect of seed priming and zinc foliar application on yield and yield components of wheat a split factorial experiment based on randomized complete block design was conducted in 2008-2009 growing seasons in research farm of  Bu-Ali Sina University. Main factor was including four foliar applications of zinc sulfate as the main plot and two wheat cultivars (Toos and Alvand) and three priming treatments including priming with water and priming with zinc sulfate and control (no priming) as sub-plot. Four foliar application treatments including control (no foliar application), foliar application at tillering, booting and both tillering and booting stages were used. The results showed that total dry matter, grain yield, 1000 grain weight, spikelet number per spike and grain number per spike significantly affected by foliar application of zinc, priming and cultivars. Maximum value of mean traits in alvand cultivar was more than the Toos cultivar. Compared to control (no foliar application), foliar application at tillering stage and both tillering and booting stages increased grain yield up to 9.7 and 13% and total dry matter up to 10.7 and 14.7%, respectively. Priming with water and zinc sulfate increased grain yield up to 6.9 and 2.2% and total dry matter up to 9.0 and 3.3%, respectively. There was a significant interaction effect between foliar application and priming on total dry matter, grain yield and 1000 grain weight. The highest grain yield was observed at the both tillering and booting stages of zinc foliar application and priming with water. 

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