【摘要】 本试验为了获得对甜菜经济性状进行有效选择的依据,对26个甜菜品种(系)地上部性状进行了调查,测定了遗传变异系数、遗传力,遗传与表型相关等。进而对这些性状与主要经济性状(产糖量、含糖率、块根产量)的相关性进行了研究,通过分析,提出相关信息,从而为甜菜的经济性状选择,培育高产、高糖新品种提供依据。更多还原

【Abstract】 Selection is an important measure to develop the high yield genefor plant breeders.But it was not easy to record the all agronomic,morphological or qualitative characters in selection,thus if the effectiveand reliable selection be carried out,the number of selections shouldnot be too big,while its variations,be shown fully.There were somereports on the hereditary variation and selection on the sugar beet characters in the domestic and abroab.For obtaining the economic characters,the characters of tops of 26 cultivar(lines)were investigated onthe coefficient of genetic variation,heritability,and the correlationbetween heredity and phenotype.The correlation between these characters and main.economic characters(sugar yield,sugar content,root yield)was studied,the related informations were then advanced by theanalysis and provided the basis for the economic character of selectionof sugar beet.更多还原