بررسی لاین ها و ارقام گندم نان در بلوک های دورگ گیری ایجاد نسل ‭F1 ‬جهت مناطق معتدل و سرد استان خراسان

This investigation was conducted in two experiment as follows: a) Bread wheats crossing block: 300 lines and cultivars such as commercial cultivars, landracesand CIMMYT materials were studied. Each cultivars, planted on two rows 30 cm distance.Crosses were carried out based on their program and purposes. Five spike were used for each crosses. Finally 40 simple crosses and 23 double cross on F1 hybrid of last year were carried out. b) F1 hybrids: 64 hybrids from last year cross programs planted with their parents. 56 successful crosses and hybrids were identified.