ZHAO Zi-zhong.Study on the Introduction of Improved Variety of Walnut[J].Northern Horticulture,2012,36(09):46-48.
核桃良种引种试验
- Title:
- Study on the Introduction of Improved Variety of Walnut
- 文章编号:
- 1001-0009(2012)09-0046-03
- 分类号:
- S 664.102.2
- 文献标志码:
- A
- 摘要:
- 二次枝的数量是不断扩大树冠和增加产量的基础，也是早实核桃区别于晚实核桃的主要生物学特性。对15个2 a生核桃苗的一次枝和二次枝数量进行调查，并对分枝数量进行分析。结果表明：15个品种之间分枝情况存在着明显差异。其中，“强特勒”、“西扶1号”、“辽核3号”分枝能力强，数量明显高于平均数，表现出了较好的早实丰产特性；核桃1 a生嫩枝枯死的程度是核桃抗寒能力的重要指标，不同品种之间的抗寒性存在着明显的差异。其中，“礼品1号”、“辽核3号”、“西林3号”表现出比较好的抗寒能力，而“西扶2号”，“强特勒”抗寒能力差。
- Abstract:
- The number of secondary shoot is seen not only as the basis of the increasing expansion of crown and the improvement of yield but also as the key biological characteristics differing early-fruiting walnut from late-fruiting walnut.The number of the primary and secondary branches of 15 kinds of 2-year-old walnut seedlings were investigated and analyzed.The results showed that there exist the obvious differences among the branches of 15 different varieties.‘Chandler’,’Xifu No.1’ and ‘Liaohe No.3’ were featured by freely branching，the number significantly higher than the average，early fruiting and higher yield .Meanwhile，it showed that the number of the failures of annual shoot was the vital index of walnut’s resistance to coldness and there existed apparent differences in the resistance to coldness of different varieties.‘Lipin No.1’,’Liaohe No.3’，together with ‘Xilin No.3’ had the better resistance to coldness while both ‘Xifu No.2’ and Chandler had the poor resistance.
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备注/Memo
作者简介：赵子忠（1963-），男，硕士，副教授，现主要从事森林培育和森林资源调查及林业3S技术应用研究工作。E-mail：zzzsjp@163.com。
基金项目：甘肃省科学技术委员会资助项目（GKC97-19-10）；2008年甘肃林业职业技术学院青年基金资助项目。
收稿日期：2012-02-20