摘要
2001-2006年,以镇安县为代表对南北过渡区二栗子优良单株进行调查,按照初选和复选程序分别对树龄、生长情况、单株产量、单位树冠投影产量、单粒质量、每苞栗果数以及栗苞性状等通过比较研究,共选出优良单株13棵。从10个性状的统计分析表明,所选出的13棵优树从单株产量、单位树冠投影产量、平均单粒质量、每苞栗果数、出实率等均超过选择标准,表现出明显的优良性状。
Based on the through investigation of Chestnut Erlizi genetic resource in Zhen′an county,Shaanxi province from 2001 to 2006,13 superior trees were selected by the methods of preliminary selection and secondary selection.Statistical analysis of 10 traits showed that the yield of single tree,mean yield per area of crow shadow,mean fruit weight,nut count per bur and rate of yielded nut from bur of the superior trees are higher than those of the superior tree-selection standard,and meanwhile demonstrates obviously the superior-clone characters.
出处
《西北农业学报》
CAS
CSCD
北大核心
2009年第6期253-256,共4页
Acta Agriculturae Boreali-occidentalis Sinica
基金
陕西省科技攻关项目(2006K01-G27-04
2007K01-12)
关键词
栗子
优树选择
南北过渡区
Chestnut
Superior-tree selection
Transitionary section of south and north
