ارزیابی اکسشن های ‭Elymus hispidus var. villosus ‬و ‭Elymus pertenuis ‬برای عملکرد و کیفیت علوفه در دو شرایط آبی و دیم استان فارس

Elymus genus of Poaceae family according to Flora Iranica has 22 species in Iran. In this research in order to compare the yield and herbage quality 19 accessions of Elymus hispidus and 16 accessions of Elymus pertenuis were surveyd separately in two experiments in random complete block design under two irrigated and dry land conditions , with three replications. Some morphological traits: Plant Height, Number of shoot on Bush, Ratio of leaf to shoot, Time of Spike appearance and Wet Weight and Dry Weight, and chemical traits: Digestibility dry mates, crude protein, Acid detergent fiber, Ashes and Water solution carbohydrate of each accession were measured. The obtained results of comparing mean of traits for E. pertenuis showed that under dry land condition accessions Eghlid- Pasahlaki, Arak- ashtian, Darehbid Darehbid and under irrigated condition accessions Arak- Toreh, Darehbid Darehbid, Khansar- Masaf and for E. hispidus under dry land condition accessions Feridan Isfahan, t24 Isfahan and under irrigated condition accessions Dejkord Fars were better than the others. The obtained results of comparing mean of the herbage yield showed that under two irrigated and dry land conditions for E. pertenuis accessions Eghlid- Eghlid, Asadabad hamedan, Bardeh shahrekord and for E. hispidus Gorgan-Khoshyeylagh, Noor Mazandaran, Brojen chaharmahal, Yasoj_Pataveh and Semirom Isfahan were preferable to others.The most of Correlation Index for E. hispiduis under dry land condition is related to crude protein and ADF%(66%) and for E. pertenui is related to herbage yield and Number of shoot (64%) and under irrigated condition is related to Plant Height with ADF% (63%). accessions of E. hispidus were classified in to 2 groups and E. hispiduis in 3 groups. Key words: Elymus hispidus, Elymus Pertenuis, herbage yield, herbage quality, Cluster analysis.

کلیدواژه ها:

الیموس ، ژنوتیپ ها ، ویژگی های زراعی ، عملکرد زراعی ، فارس