گزارش نهایی بررسی صفات کمی وکیفی ارقام و لاینهای جو در آزمایشات بین المللی ‭(IBYT-LRA-C)‬

It is need to study plant materials from germplasms to know the importance of genetic diversity as a tool of the breeders' work and it plays role in decreasing the dangers of single -cropping agriculture. For this purpose, the study of morphologkal variety of traits of plant materials introduce fi'om the international institute of agricultural research in dry and semi-dry regions located in Halab city of Syri,U) was conducted in two pans as follows; The 'first part c.on1ainec1 24 winter ~md facultative barley fines. They were planted in yield trial in dry regions with cool winter (lBYT-LRA-C). ac.companied \vith the. local ch\?ck. line lvtakoud. The tria:! had 3 replicalionswith RCBD (Randomized Complete Blocks Design) and it had 2 mou.nds (120'" 150 em) including 6 lines (the dist~Ulce between each lines was 20 em). The yie.ld of each plot was vveighed after harvesting. The analysis of \lm"iance and ruean of yield among genotypes' revealed that 11 genotypes bad tbe highest yield. The second part was a observation nursery of winter and t~\cldtative badey in dry regions with cool \\;nter (1BON-LR.A-C) tha1 contained 124 line.s accompanied with a local check. They were studies in an observation nursery experiment. The lines were plante.d on two Hnes of 2.5 meters in a mound. FinaUy 29 superior genotypes were identified atlhe station. The imp01iant agronomic traits that were. evaluated for two above experiments during gTowth > stage are as follows (including): Days to heading, plant height., physiological rnaturity, lodging percentage and grain yield.

Keywords:

جو , پژوهش