بررسی عملکرد و اجزای عملکرد ارقام جدید و رایج گندم جدید نان(Triticum aestivum L.) در شرایط مشهد

This study was designed to determine the yield and yield components of 10 wheat cultivars grown in Mashhad that was conducted in the basis of randomized complete block design with three replication in 2012. New cultivars were included Pishgam, Mihan, Orum, Zare, c-88-4, c-88-13 and common varieties include Bahar, Falat, Pishtaz and Sepahan leading. In this study, six traits including number of ears per square meter, number of grains per spike, grain 1000 weight, grain yield, straw yield and harvest index were measured in each plot. Experimental results showed that the data on all traits except straw yield there was no significant difference. In this study, all yield components had imposed positive effects on performance that in among, number of ears per square meter had the most positive effect. Also cultivars were grouped using cluster data into three groups so that Bahar was grouped in one cluster, Mihan, Falat and Pishgam in two cluster and, eventually c-88-4, c-88-13, Orum, Zare, Pishtaz and Sepahan were grouped in the third cluster. It also became clear that Pishgam, Falat, Mihan and Bahar in term of yield and yield components were superior to the other varieties.