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
作 者:田海成[1] 韩明玉[1] 李丙智[1] 范崇辉[1] 张林森[1] 贾晓妮[1]
机构地区:[1]西北农林科技大学园艺学院,陕西杨凌712100
出 处:《西北农林科技大学学报(自然科学版)》2007年第9期132-136,共5页Journal of Northwest A&F University(Natural Science Edition)
基 金:农业部"948"项目(2006-G28)
摘 要:为了改善密闭果园的通风透光条件,提高苹果品质,寻求良好的管理措施。以10年生短枝红富士苹果为试验树,研究了间伐、提干和落头3种管理措施对老龄红富士苹果树的花芽分化、树体结构、光合能力及果实品质的影响。结果表明,间伐能显著促进花芽分化,增加长枝和中枝的数量;提干表现出减少单株花芽分化量的效果,且随着干高的增加,单株花芽分化量呈减少的趋势,提干至干高为1.2~1.3 m会显著降低1年生枝的总量;树高高于1.7 m时对单株花芽分化量和1年生枝总量的影响均较小;3种管理措施均能提高红富士苹果树的光合作用和果实品质。提示较优的管理措施是密度840株/hm2左右,干高0.9~1.0 m,树高2.2~2.4 m。In order to improve orchard ventilation and illumination situation,enhance apple quality and seek good management practices, this experiment has studied the effects of three management practices with 10 Increase year-old Fuji apple in Shaanxi province. The results show that reducing orchard density is able to flower-bud differentiation and the number of long, and middle branches. But the effect of increasing the height of trunk goes to the reverse way and with the height of tree increasing,the flower-bud differentiation per tree decreases. Increasing trunk up to 1.2-1.3 m is able to reduce the number of yearly shoot; when the tree height is above 1.7 m,it has little effect on the flower-bud differentiation per tree and the number of yearly shoot. Furthermore, all the three management practices can improve photosynthetic ability and fruit quality. The above analysis shows that the best measure of managing apple is to keep the orchard density about 840 trees per hm^2 ,trunk height between 0.9-1.0 m and tree height between 2.2-2.4 m.
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:216.73.216.229