تأثیر اندازه غربال دستگاه بوجاری بر درصد سبز مزرعه و عملکرد دانه سه رقم جو

In order to evaluate the effect of sieve size of cleaning machine on agronomical characteristics of three barley (Hordeum vulgare L.) cultivars, this experiment was conducted at seed and plant certification and registration research Institute, karaj, Iran. Various treatments were planted within a randomized complete block design with 3 replicates. The experiment factors were sieves size of cleaning machine with three levels (1.8, 2, 2.2 mm ) and three barely cultivars (Bahman, Nosrat and Yosef). Emergence percentage, green weight of 100 plants, dry weight of 100 plants, grain yield, biological yield and harvest index were measured. Cultivar had significant impact on green weight of 100 plants, dry weight of 100 plants and harvest index. In these characteristics, Nosrat and Yosef were superior than Bahman cultivar. Sieve size of cleaning machine had no significant impact on all measured characteristics.