豫南山区油茶农家种质资源调查及选优
Investigation and Selection of Germplasm Resources of Landraces Camellia oleifera in Mountains Regio
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摘要: 在对豫南山区油茶资源调查的基础上,按油茶良种选育标准,初选获得20株优树.对其进行连续3年观测,复选出9株综合表现较好的优树.用灰色关联分析法对其进行综合评价.结果表明:豫南山区油茶资源以中壮龄林为主,树龄30a左右,成熟果实颜色以青色为主,果形以扁圆和圆形为主.复选优树的灰色关联分析显示,光山3号达到当地良种水平,新县1号、新县5号、新县4号、新县6号、商城1号和商城3号的选育潜力较大,新县7号和商城2号及其他初选优树可作为备选资源继续观测 .Abstract: Basis on the Camellia resource investigation and according to fine species breeding standards, we get 20 plus trees through primary election, for three years observation, we finally get 9 plus trees which have better performance. And then use Gray Relational Analysis method to evaluation the comprehensive performance of the select fine species. The results show that: the landraces Camellia oleifera resources are mostly in stronger age which about 30years old, the primary color of ripe fruits to be cyan and the main shape of fruit to be oval and round. The results of Gray Relational Analysis of checked trees display that: Guangshan No.3 achieve the local fine varieties level, Xinxian No.1、No.5、No.4、No.6 and Shangcheng No.1、No.3 have large selection and breeding potential, Xinxian No.7、Shangcheng No.2 and others primary election plus trees can be used as alternative resources to continue observation.