高亚油酸含量油茶优良无性系的选育  

Studies on Selecting and Breeding of High Linoleic Acid Content and High Oil Yield Oiltea Camellia Clones

作　　者：奚如春[1] 邓小梅[2] 龚春[2] 刘胜[2] 敖婉初[2] 

机构地区：[1]北京林业大学森林培育与保护教育部重点实验室,北京100083 [2]江西省林业科学院,江西南昌330032

出　　处：《林业科学研究》2006年第2期158-164,共7页Forest Research

基　　金：江西省科技厅重点农业攻关项目:"高品质油茶新品种选育及栽培模式研究"(200110101004)部分内容

摘　　要：在全国油茶优良无性系评选鉴定标准和方法的基础上,开展油茶产量和油脂品质及其相关特征性状的研究。结果表明:油茶产量和品质没有明显的相关性。油茶无性系间主要经济性状指标具有差异性和遗传稳定性,产油量与鲜果含油率和种仁含油率成极显著正相关,与脂肪酸组分间无明显相关,油酸与亚油酸、亚麻酸和棕榈酸成极显著负相关,亚油酸与鲜出籽率和棕榈酸成极显著正相关。本研究在茶油产量(750 kg.hm-2以上)和油脂品质(亚油酸含量8.5%以上)双重指标体系控制下,从60个油茶无性系中选育出赣石848,赣6,赣68,赣兴46,赣石834,赣71等6个高亚油酸油茶优良无性系,入选无性系产油量平均为1 063.1 kg.hm-2,油酸含量80.0%,亚油酸含量9.7%。This paper was on the basis of the national standard and methods of selecting and breeding of high oil yield oiltea camellia clones. The characteristics of relevant trait index of the yield and the oil quality were studied. The results indicated that the yield and quality of the oiltea camellia had not obvious relativity. The main economic trait index had different nature and hereditary stability. The yield related positively to the ratios of fresh fruit oilness and the seed kernel ; but had no obviously relevancy with the component part of fatty acid. The linoleic acid and the linolenic acid and the palmitic acid related negatively to the oleic acid. The linoleic acid related positively to the seed ratios of fresh fruit and the palmitic acid. Under the double index systems control of oil yield （ above 750 kg· hm^-2 ） and oil quality （ linoleic acid content must be more than 8.5% ）, 6 high yield and high linoleic acid content clones were screened out as. follows ： GS848, G6, G68, GX46, GS834, G71. The average oil yield was 1 063 kg ·hm^-2, the content of oleic acid was 80.0%, and the content of linoleic acid was 9.7%. All the clones had been provided with high and stable yield and superior quality.

关 键 词：油茶 亚油酸含量 良种选育 

分 类 号：S727.3[农业科学—林木遗传育种]