检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]山西省生物研究所,山西省农业科学院品种资源研究所
出 处:《华北农学报》1996年第2期19-27,共9页Acta Agriculturae Boreali-Sinica
摘 要:以生态学为指导,小麦生态区划为基础,小麦适应性及其生态性状为依据,构建了与小麦生态区划对应的小麦生态分类系统,将全国分为5大生态气候群及20个地理生态型。Taking ecology as direction,wheat ecological division as base, wheat adaptability and ecological characteristic as basis, wheat ecological classification system is suggested to consist of wheat climatic synusium, geographic ecotype, cultivation ecotype and variety type, to correspond with wheat ecological division. And the common wheat is divided into five climatic ecological groups and twenty geographic ecotypes, that is:Ⅰ.North temperate zone spring wheat climatic ecological type, which includes three spring wheat climatic ecotypes to be located in northeast plain, Inner Mongolia prairie and northwestern Ningxia and Gansu; Ⅱ. Yellow - Huai Hat River warm temperate zone winter wheat ecological group,which includes six winter wheat ecotypes as follows:Hat River plain, Loess plateau,Jiaodong-Liaodong seacoast,North China plain, middle reaches of Yellow River and Huaibei plain; Ⅲ. South subtropic spring wheat climatic ecological group,which includes seven spring wheat ecotypes as middle and lower reaches plain of Yangtze River, Qin-Ba hilly area, Southern hilly area, Sichuan basin, Yunnan plateau, Guizhou plateau and South China plain; Ⅳ. Xinjiang inland winter/spring wheat chlimatic ecological group,which comprises Xinjiang both spring wheat and winter wheat ecotypes; Ⅴ. Qinghai and Tibet plateau wheat climatic ecological group,which includes both ecotypes of Qinghai plateau and Tibet plateau.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.3