苦荞主要性状遗传力和遗传相关研究

对45个苦养品种的6个主要经济性状进行了遗传力和遗传相关系数的测定。结果表明，千粒重h2（％）＝83．3，主茎节数h2（％）＝68．9，株高h2（％）＝61．7。千粒重与株粒重r＝－0．12，主茎节数与株粒重r＝－0．236，株高与株粒重r＝0．117。

A Study on Heritability and Genetic Correlation of Main Characters in Tartary Buckwheat

The study was conducted to assess the heritability and genetic correlation on 6 main economiccharecters in 45 varieties of tartary buckwheat. The results indicated: heritability of 1 000 grain weight h2(%)=83.3, main stem rode number h2(% )=68 .9,and plant height h2(% ) = 61 .7. The correlationcoefficiency between 1 000 grain weight and single plant grain weight r= - 0. 12, that between main stemnode number and single plant grain weight r = - 0. 236, that between plant height and single plant grainweight r = 0. 117.