油桐北缘产区优树选择及其主要性状描述  

Selection of superior trees of Vernicia fordii in the northern distribution margin description of the major traits

作　　者：蔡新玲[1] 黄志松 张晓蔚 张稳 肖正东[1] 

机构地区：[1]安徽省林业科学研究院,合肥230031 [2]桐城市苗圃,桐城231400

出　　处：《安徽农业大学学报》2015年第5期775-779,共5页Journal of Anhui Agricultural University

基　　金：安徽省林业科学研究院院长基金(2013004)资助

摘　　要：为推进油桐产业的快速和规模化发展,解决北缘地区油桐良种缺乏的问题,2011年以来,在对安徽大别山区的桐城和金寨等地的油桐种质资源调查的基础上,开展油桐优良单株选择工作,经初选、复选和决选,最终选择出5株油桐优良单株。所选5个优株雌雄花比例均在1:10以内,属于典型的少花花序类型;丛果性除"金寨2号"稍弱外,其他4株丛果性均较强,果大皮薄,光滑整齐,粒饱仁满,种仁含油率均在50%以上,2年的年均鲜果产量在1.25 kg·m-2以上,各项指标均达到了我国油桐优树的选择标准。以上油桐优树的选出为北缘地带发展油桐提供了良种培育的基础。To advance Vernicia fordii industry and solve the problem of lacking superior trees in the northern distribution margin of tung oil tree, selection of superior tung oil trees has been conducted in Tongcheng County and Jinzhai County of Dabie Mountain since 2011. Five superior trees named as Tongcheng 1, Tongcheng 2, Jinzhai 1, Jinzhai2, and Jinzhai 3 were identified through a serial of process including resource investigation, preliminary selection, repeated selection, and final selection. The proportion of male and female flowers in all selected trees was within1：10 and the flowers could be classified as less flower inflorescence type. All trees except Jinzhai2 produced big and uniform fruits with thin smooth fruit skin and the seed oil rate was above 50%. An average yield per unit crown area could reach to 1.25 kg·m-2. All those parameters met with the standard of selecting Vernicia fordii superior trees in China. These superior individual plants could provide a basis for developing elite varieties in the northern distribution margin in China.

关 键 词：油桐 北缘 安徽 大别山地区 选优 

分 类 号：S727.32[农业科学—林木遗传育种]