Relationship between agronomic and morphophysiological trait of barley (Hordeam vulgare L.) genotypes by multivariate statistical methods

The most important cereal Barley and due to the high compatibility of different environments screw. In order to evaluate the agronomic morphophysiological trait of barley, 103 families F3 of a cross Becher × Kavir in randomized complete block design with three replications at the Agricultural Research Station of Gonbad kavus was cultured.The most important traits measured, grain yield, number of spike, number of grains per spike, biological yield, total weight and length spike Analysis of variance showed that all traits except plant height was a positive and significant. Results the comparison average showed the highest and least grain yield was related 87(8572.8) and 6(1946.3) families. The highest correlation coefficient was related to grain yield and biological yield (r=0.68**). Cluster analysis divided families into four groups that it of 55 families was the largest group. The highest grain yield (7187/05) and the total number of spikes (639/56) belong to the second group, as well as for grain weight (29/50) and number of grains per spike (44/08) highest the amount was in the first group. Stepwise regression analysis biological yield the first adjective, grain yield model and 0.470 of the changes to be justified. Path analysis showed that biological yield (1.016) highest strong and direct impact on yield. Identify the attributes and the relationship between them it is necessary to determine the selection criteria and can be effective in the selection of high yielding genotypes.