油茶杂优闽1等32个品系选育的研究

A Study on the Selective Breeding of 32 Cross-Vigor Strains of Camellia oleifera Such as Min 1

1973年开始 ,经过初选、复选和决选的 3a强度选择 ,从近 6 0 0hm2 油茶林中决选出达到全国油茶优树评选标准的优树 10株 ,采用无性繁殖的方法把分散在异地的 10株优树繁殖成为无性系苗木 ,供作长期考核 ,并确定为杂交亲本进行双列杂交 ;1985年按完全随机区组设计营造了 5 31株杂交子代试验林。根据 1994～ 1997年对营建的杂交F1代试验林连续4a的测产结果 ,筛选出油茶杂优闽 1等 32个品系 ,它们的年均产油量为 6 86 332～ 10 46 90 9kg·hm-2 ,比目前国内优良无性系标准年均产油量 45 0kg·hm-2 增产 5 2 5 18%～ 132 6 46 % 。

According to the oil yield measurement (for successive four years from 1994 to 1997) results of F 1 experimental stands, 32 cross vigor strains of Camellia oleifera such as Min1 were selected.Their annual average oil production is 686 332～1046 909 kg per hm 2,increasing by 52 518%～132 646% as compared with that of the domestic excellent clones at present and they possess the stronger resistance to anthracnose.