بررسی خصوصیات زراعی و عملکرد دانه ژنوتیپ های جو در آزمایشات مقایسه عملکرد مقدماتی در شرایط دیم گرمیسیری و نیمه گرمسیر

One of the most important production restricter agents is the drought and water shortage peoblem. In order to vovering to drought challenge, detecting cultivars with high tolerance and high yielding is very vital. This study was conducted by 90 barley genotypes using one experiment PRBYT with izeh and mahoor as checks. This trial were performed at 3 stations (Gachsaran, Moghan and Gonbad) during one year (2009- 2010) using systematic design and each genotype was planted in a 6 rows, 17.5 cm line spacimg and 7.03 meters length with cereal planter device namely Winter Stiger in the favorite time. During growth session, data was collected from some important morpho- physiological traits and compare with checks. Present research for gachsarn station, were selected 39 barley genotypes for the complementary study in the next year. Results showed that grain yield was ranged from 842.7 kg/ha for line No.67 BBSC/CONGONA//BLLU/3/CIRU with 11.7% yield decline relation to checks mean I zeh and Mahoor to 3481.9 kg/ha for line No. 30 Roho//Alger/Ceres362-1- 1/3/Alpha/Durra/4/ ICB02-2816-0AP with 108.3% increment relation to checks mean. Offcource lines No. 79, 83, 56 and 80 with yield and yield increment relation to checks 3122.9 kg/ha and 31.85, 3036.2 kg/ha and 18.4%, 3032.1 kg/ha and 48.3% and 2884.4 kg/ha and 12.5% are located in the 2nd, 3rd, 4th and 5th rank.

Keywords:

جو (گیاه) , ژنوتیپ ها , ویژگی های زراعی , عملکرد زراعی , مناطق گرمسیری