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]浙江省上虞县林业工作站
出 处:《浙江林业科技》1991年第3期53-57,62,共6页Journal of Zhejiang Forestry Science and Technology
摘 要:浙江省上虞县栽培板栗历史悠久,通过20多年对魁栗品种选育改良,其优良度大大提高,坚果每kg56~60个,果皮红褐油亮,单产比省内其它品种高47%左右,并对其生物学特性进行了观察。History of Castanea mollissima cultivation is very long in Shangyu, ZhejiangProvince. As a result of variety development by selection for over twenty years, the qualityof Castanea mollissima Blume has been improved greatly. Now about 56~60 nuts of this varietyweight one kilogram, and the peel is red-brown and glossy. The unit area yield is about47% higher than other varieties of Castanea mollissima in Zhejiang. Meanwhile, the biologicalcharacters of Castanes mollissima were observed.
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:216.73.216.15