Effect of plant density and foliar application of urea fertilizer on yield and protein percentage of Durum wheat
Subject Areas : crop production
اكبر قاسمي پور
1
(دانش آموخته کارشناسی ارشد زراعت ، واحد خوي، دانشگاه آزاد اسلامی ، خوي – ايران)
علی نصرالله زاده اصل
2
(گروه کشاورزی-دانشکده کشاورزی-دانشگاه ازاد اسلامی خوی)
Keywords: protein , harvest index , wheat , yield,
Abstract :
In order to evaluate the plant density and foliar application of urea fertilizer impact on yield and yield components of Durum wheat var. Arya, an experiment was carried out in 20km north east of Khoy during 2010 = 11. The fist factor plant density was in three levels (300, 400, 500 grain in m2 ) , the second factor, foliar application of urea fertilizer in four levels ( control, stage of tillering, stage of stem extension and stage of flowering ) were considered. The result of variation analysis showed that the effect of plant density on number of spike in m2,number of grain in spike, weight of 1000 grains, number of spiklet in spike, protein percentage, grain yield and harvest index were significant. The highest grain yield (6.9 ton/ha ) obtained from density of 300 grain in m2. And the minimum grain yield ( 5.19 ton/ha ) was attained from density of 300 grain in m2.The effect of foliar application of urea fertilizer on traits except to weight of 1000 grains was important. The highest grain yield (6.74 ton/ha ) was obtained from foliar applications of nitrogen fertilizer in the stage of tillering and grain yield increased about 10% compared with control. In addition to this experiment the maximum grain protein percentage was attained from plant density of 500 grain in m2 and foliar application of urea fertilizer in the stage of flowering.
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