Evaluation of the Effects of Some Mrphophysiolocal Traits on Seed Yield of Winter Wheat Genotypes

Subject Areas : Journal of Crop Ecophysiology

Babak Hooshmandi ¹ (Young Researchers and Elite Club, Tabriz Branch, Islamic Azad University, Tabriz, Iran)
Vrahram Rashidi ² (Assistant Prof., Department of Agronomy and Plant Breeding, Faculty of Agriculture, Tabriz Branch, Islamic Azad University, Tabriz, Iran)

Received: 2015-01-25 Accepted : 2016-03-09 Published : 2016-06-21

Keywords: Path analysis, Grain yield, Morphophysiologic traits, Winter wheat,

Abstract :

To evaluate the effects of some morphologic and physiologic traits on seed yield of 15 winter wheat genotypes and landraces an experiment on the basis of randomized complete block design with four replications was conducted at the Agricultural Research Field of Islamic Azad University of Tabriz branch in 2012-2013. Analysis of variance showed that traits like plant height, peduncle length, spike length, number of kernel spike, spike density, number of unfertile tiller, 1000 kernel weight, seed yield, harvest index, biological yield and relative water content of flag leaf were significant It was also indicated that kernel no. per spike, spike density, fertile tiller no., 1000 kernel weight, harvest index and biological yield were positively correlated with seed yields. Results of path analysis also showed that the direct effect of harvest index and relative water content of flag leaf on grain yield were positive but the direct effect of spike length on grain yield was negative. Cluster analysis of WARD method, divided genotypes into two groups. The results also specified that genotypes 7, 4 and 13 were higher seed yielder than other genotypes. 

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