岑溪软枝油茶油脂积累过程产量性状动态分析  

Dynamic Analysis of Yield Traits in the Process of Oil Accumulation in Cenxi Softbranch Camellia oleifera

作　　者：王东雪[1] 江泽鹏[1] 吴艺梅 侯立英 张乃燕[1] WANG Dong-xue;JIANG Ze-peng;WU Yi-mei;HOU Li-ying;ZHANG Nai-yan(Guangxi Forestry Research Institute,Guangxi Key Laboratory of Special Non-wood Forest Cultivation and Utilization,Nanning 0002,China;Cenxi Seed Orchard for Soft-branchCamellia oleifera ,Cenxi,Guangxi 543200,China;Bureau Forestry of Sanjiang County,Liuzhou,Guangxi 545500,China)

机构地区：[1]广西壮族自治区林业科学研究院广西特色经济林培育与利用重点实验室,南宁530002 [2]岑溪市软枝油茶种子园,广西岑溪543200 [3]三江县林业局,广西柳州545500

出　　处：《广西林业科学》2017年第2期146-149,共4页Guangxi Forestry Science

基　　金：广西科学研究与技术开发计划项目(桂科攻1123004-1A);广西自然科学基金(2011GXNSFB18037);广西林业科技项目(桂林科研[2015]30号)

摘　　要：以岑溪软枝油茶优良无性系岑软2号为材料,研究果实油脂积累过程中主要产量性状的动态变化,并分析其相关性。结果表明:在整个测定周期内,鲜出籽率无显著变化;干籽出仁率在9月20日之后快速上升,10月25日之后速度逐渐减慢,11月15日之后达到最高水平;种仁含油率和干出籽率均呈上升趋势,10月25日前上升幅度较大,此后速度减慢,并在11月8日之后达到最高水平;果油率9月27日前缓慢升高,之后进入积累高峰期,11月8日后达到最高水平。果油率、干出籽率、干籽出仁率和种仁含油率4个性状指标,两两之间均呈极显著正相关,鲜出籽率仅与干出籽率呈极显著正相关。建立了以果油率为因变量,干出籽率、干籽出仁率和种仁含油率为自变量的回归模型:y=-6.402+0.225x1+0.104x2+0.025x3,3个自变量的重要程度为干出籽率>干籽出仁率>种仁含油率。在广西不同生态区域,针对岑溪软枝油茶栽培品种,11月中旬至12月上旬为果实的适宜采收期。Taking the superior clone of Cenruan No.2as material,the dynamic changes of the main yield traits in the process of oil accumulation of Cenruan No.2were studied and the correlation was analyzed.The results showed that the fresh seed rate had no significant change in the whole determination period.The kernel rate of dry seed increased rapidly after September20th,and the speed gradually decreased after October25th,reaching the highest after November15th.The oil rate of kernel and the dry seed rate were on the rise,and the increase was higher before October25th,and then the speed slowed down and reached the highest level after November8th.The oil content of fresh fruit rose slowly before September27th,and then entered the peak of the allumulation and after November8th reached the highest level.There was a significant positive correlation between any two for the oil content of fresh fruit,the dry seed rate,the fresh seed rate and the oil rate of kernel.There was a significant positive correlation between the fresh seed rate and the dry seed rate.The regression model of the oil content of fresh fruit as dependent variable was established as follows:y=-6.402+0.225x1+0.104x2+0.025x3,and the order of three independent variables accovding to importance was the dry seed rate>the kernel rate of dry seed>the oil rate of kernel.The appropriate harvest period of Cenxi soft-branch Camellia oleifera in Guangxi was in mid-November to early December.

关 键 词：岑溪软枝油茶 油脂 产量性状 动态变化 

分 类 号：S794.4[农业科学—林木遗传育种]