摘要
通过对1200份本地农家品种连年种植观察和室内考种资料统计分析证实，西藏大麦地方品种有明显的主体类群特征。大多数调查性状既表现出较高的一致性，同时又表现出生物多样性。外观形态上，西藏品种多表现为中高秆、多棱、疏穗、深色和裸粒，但各样变异类型都有；品种生态型以春性中热为主，熟性相差40天左右，抗旱、耐碱、适应性较好；经济性状优越，穗粒数多，千粒重高，绝大多数品种平均值在45拉和45克以上，且表现出较大的变异幅度，绝对相差分别达60粒和40克左右，并且有一批粗蛋白和扶氨员含量极高的品种，育种选择前景广阔。
Statistical analysis on the data of the main agronomic characters of more than 1200 local Tibetan barley varieties which were planted for several years and investigated systematically in the experiemental fields, showed that the colony's features of Tibetan local barley varieties are very conspicuous,most of the varieties were similar in plant shape,economic and resistant characters, but there also existed biological deversity. In view of morphological characters, most of the varieties were characterized by middle or high stalk, multi-arris. lax spike, deep colour and naked grain and there also existed varisnts. In the ecological types, most of them were spring-natured and had strong resistance to draught, alkalinity, and good adaptability to various climate, topography and soil conditions, For example, their mean values of the graius per spike and the 1000-grain weight were over 45 grains or over 45 g respectively and their extreme differences were 60 grains and 40g respectively.Besides, there were some special varieties with higher grain protein or lysine contents. So there is a good prospect in utilizing Tibetan barley germplasm resources for the barley breeding.
出处
《西南农业学报》
CSCD
北大核心
1997年第1期41-48,共8页
Southwest China Journal of Agricultural Sciences
关键词
大麦
地方品种
主类群特征
性状变异
西藏
Tibetan local barley variety
Character of main colony
Variation
