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“821”系我省目前大面积推广的油莱品种,具有高产、优质、抗病等特点。笔者经调查和考种后,就该品种产量构成因素对单株菜籽产量的影响进行通径分析,旨在搞清高产原因,为进一步提高菜籽产量提供依据。一、研究方法1.取样考种1988年5月临川市河东乡14～15日将两块“821”品种油菜田划分为(?)个小区,每小区随机取样5株,共计165株,考查株高、分枝数、茎基粗等农艺性状和单株实荚数、单荚实粒数、千粒重以及单株菜籽产量等经济性状。
“821” Department of our province is currently a large area to promote oil varieties, with high yield, high quality, disease resistance and other characteristics. After investigating and examining the species, the author conducts a path analysis on the impact of yield components of the varieties on the yield of single rapeseed, aims to find out the reasons for the high yield and provide the basis for further raising the yield of rapeseed. First, the research methods 1 sampling examination 1988 May Linhe Hedong Township 14 to 15 will be two “821” varieties rape fields are divided into (?) A district, each district random sampling 5, a total of 165, The economic traits such as plant height, number of branches, stem diameter and other agronomic characters, pods per plant, number of pods per plant, 1000-grain weight and rapeseed yield per plant were investigated.