摘要
通过对阜平大枣丰产园不同修剪程度树体状况与枣树结果关系的调查表明，阜平大枣丰产园叶面积系数以２．４～２．５为宜，３～１１ａ生枣股坐果率最高，２～１０ａ生枣股上着生的枣果单果重较大。同时将阜平大枣结果母枝分为１～２ａ生过渡结果母枝，３～１０ａ生旺盛结果母枝，１１ａ生以上衰老结果母枝。过渡结果母枝枣果成熟期晚，旺盛结果母枝枣果成熟期适中，衰老结果母枝枣果成熟期最早。通过分析提出，阜平大枣的量化修剪指标为每平方米投影面积２０个二次枝。
According to the survey of the relationship between the crown texture with different pruning levels and fruit setting in Fupingdazao high yield orchard, the optimum leaf area index was 24～25. The fruit setting rate of 3～11 year old fruiting mother branches was the highest. The single fruit weight of the 2～10 year old fruiting mother branches was superior. Meanwhile, the fruiting mother branches of Fupingdazao may be divided into the transitional fruiting mother branch of 1～2 year old, the full fruiting mother branch of 3～10 year old and the senescent fruiting mother branches over 11 years old. The ripening stage of jujube fruit was optimum for the full fruiting mother branches, later for the transitional fruiting ones and earlier for the senescent fruiting ones. Based on the survey, a pruning norm of 20 secondary lateral branches per squre crown projection area has been put forward.
出处
《河北林果研究》
1997年第3期233-235,共3页
Hebei Journal of Forestry and Orchard Research
关键词
阜平大枣
产量
树体状况
修剪指标
枣树
Ziziphus jujuba Mill
yield
crown texture
pruning norm
