山东省小麦品种演变及产量性状的遗传分析  

Evolution and Genetic Analysis of Yield Characters of Wheat Varieties in Shandong Province

作　　者：王江春[1] 于波[1] 王荣[1] 王丽[1] 耿荣萍[2] 陈永娜[1] 李美玲[1] 

机构地区：[1]烟台市农业科学研究院,山东烟台265500 [2]招远市张星镇政府,山东招远265403

出　　处：《山东农业科学》2007年第2期5-7,9,共4页Shandong Agricultural Sciences

摘　　要：对山东省1949年以来9次更换的部分小麦品种的主要性状演变规律及相关遗传参数进行分析。结果表明:山东省小麦品种的抗病性逐步提高,株高矮化;主要性状在演变过程中对产量贡献大小顺序从20世纪50年代的穗粒数>成穗数>千粒重>株高,演变为现代品种的千粒重>穗粒数>成穗数>株高;产量结构渐趋合理,产量潜力得到很大提高;株高、主穗长等性状遗传力较高;产量潜力的遗传力相对较低。In order to learn the evolution laws and genetic program of wheat cultivars, the wheat cultivars in Shandong province from 1950＇s were analyzed. The results showed that the disease-resistance of wheat was promoted and plant height came to decreased; The contribution of primary characters of wheat to yield in evolution procession was grain number per spike〉maturity spikes〉weight of 1000 grains〉plant height in 1950＇s while the weight of 1000 grains〉grain number per spike〉maturity spikes〉plant height in present. Yield components tend to be reasonable and yield potential was improved. The heritability of plant height and length of main stem spike were higher, while that of yield potential was lower.

关 键 词：小麦品种 性状演变 遗传分析 山东省 

分 类 号：S512.110.32[农业科学—作物学]