Analysis on Yield Components and Their Correlations of Wheat Varieties (Lines)in North Huanghe -Huaihe Region
Gao Guoliang
Chen Guiju
Wang Fuyu
Liu Xingqiang
Wang Qiuyun
Yin Xunli
Abstract：In order to provide references for high -yielding breeding,the variation trend of yield charac-ters and their correlations were studied based on the data collected from the wheat varieties (lines)in the north Huanghe -Huaihe regional tests from 2006 to 2015.The results showed that the yield and spike number per hectare and 1 000 -grain weight showed increasing trends year by year,while the grains per spike showed decreasing trend.The 1 000 -grain weight showed the largest contribution to yiled,but had little effects on the other yield components.The spike number per hectare showed significantly positive correlation with yield and very significantly negative correlation with grains per spike.Based on the above results,the ecological conditions in the north Huanghe -Huaihe region and the current growing conditions,wheat breeding should foucus on increasing the 1 000 -grain weight to about 50 g,maitain the population spike number as 6.00 ~6.50 million per hectare and moderatedly increasing the grains per spike to 38 ~40.
Keywords：WheatYield componentsCorrelation analysisPath analysis
Publication Date：2016-07-31
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 15-18 )