بررسی بررسی خصوصیات زراعی و عملکرد دانه لای نهای جو درآزمایشات مقدماتی مشترک مناطق معتدل سرد

Barley yield trials play an important role in breeding program. Selected lines of observation nurseries and segregating populations (F6) are compared with checks based on yield and agronomy characters, using preliminary yield trial which is the first stage of yield trials. Selected lines of these experiments are promoted to the advanced yield trials. In 2008- 2009, 77 barley entries were tested in preliminary barley yield trials of Sararood rainfed agricultural research station of Kermanshah and agricultural research station of illam, uniformly. During growth season, some agronomy characteristics of the entries such as: cold, pests and diseases resistance and also plant height, days to heading, days to maturity were recorded. In conclusion based on yield differences with checks (Sararood1 and Mahali) and agronomic selection criteria 20 lines were selected and promoted to advanced yield trials.