Abstract:

Using correlation and path analysis, on the Shandong province from 2008 to 2009 wheat area of high fat group trial of 165 wheat varieties (lines) yield and its components were analyzed. The results showed that: the coefficient of variation of yield components size: 666.7m2 spikes> grains per spike> 1000-grain weight; Yield components and yield related degree: 666.7m2 spikes> grains per spike> 1000-grain weight; Partial correlation analysis, 666.7m2 spike and thousand seed weight and yield were highly significant positive correlation, the number and yield of grain was positively related to yield components are the partial correlation between the significant negative correlation; The direct path coefficient of three yield components on yield is positive, which is the result of partial correlation analysis is consistent. According to the analysis and ecological conditions in Shandong Province and current characteristics of growing conditions, breeding and cultivation of wheat should be based on large groups of varieties of multi-spike-based, and to stabilize grains per spike, 1000-grain weight increased.