Growth, Yield and yield component Response of two Barley (Hordeum vulgare L.) Genotypes to Different Levels of NPK Fertilizer under Sulaimani Conditions

This investigation was conducted during the winter seasons of 2016-2017 at Bakrajo Agriculture Research Station, College of Agricultural sciences, University of Sulaimani, using split plot design the main plots conducted in Randomized Completely Block Design (RCBD) with three replicates to study the effect of three levels of NPK fertilizer on the growth, yield and yield component of barley varieties. The two genotypes [ATACO/BERMEJO/HIGO/3/CLN-B/80.5138//… CBSS99M00320T-L-2M-1Y-1M-0Y (ATACO...) and- ALPHA-BAR/DURRA//CORACLE/3/ALELI/4/… CBSS99Y00032S-11Y-2M-2Y-1M-0Y (ALPHA…)] were implemented in the main plots, three NPK fertilizer levels (0, 150 and 300) kg / ha from NPK fertilizer complex source (15-15-15) were implemented in the sub plot. Comparisons between means were carried out by the lease significant difference (L.S.D) at 5 % level of significance. The results of this investigation confirm that (ATACO...) produced the best values for most characters, and the application 300 Kg NPK /ha was found to be the best level to this crop. The characters grain yield recorded highly significant and positive correlation with plant height ,spike length ,average spike weight ,number of grains /spike ,grain weight /spike,1000 grain weight and biological yield with( 0.939, 0.965, 0.905,0.922, 0.883,0.829 and 0.977 ) respectively . نفذ البحث في حقل تجارب كلية العلوم الزراعية /جامعة السليمانية في بكرجو, خلال موسم النمو 2016-2017. بهدف دراسة تاثير ثلاث مستويات من السماد المركب) (NPKعلى نمو و حاصل و مكوناته لصنفين من الشعير .تم تطبيق هذه التجربة باستخدام نظام الالواح المنشقة في تصميم القطلعات كاملة التعشية (CRBD) و بثلاث مكررات .شملت عامل الاصناف [ATACO/BERMEJO/HIGO/3/CLN-B/80.5138//… CBSS99M00320T-L-2M-1Y-1M-0Y (ATACO...) and- ALPHA-BAR/DURRA//CORACLE/3/ALELI/4/… CBSS99Y00032S-11Y-2M-2Y-1M-0Y (ALPHA…)]