庆元县红花油茶种质资源树体和果实性状变异分析
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摘要
为研究庆元县红花油茶(Camellia chekiangoleosa Hu)种质资源树体性状和果实性状变异,对其9个自然分布地点进行调查分析。结果表明,红花油茶种质资源总体单株间树体性状变异大小顺序为枝下高、冠幅长、冠幅宽、树高、地径、叶长、叶宽、叶形指数,果实性状变异大小顺序为结果量、单果重、单果鲜子总量、单个鲜子重、鲜子率、单果子数、干子率,果实性状在分布区间均表现出极显著差异;由聚类分析结果得出,景区管护站和茶木淤林场、半坑村和小际头村、杨家庄村和车根村的树体性状分别归为一类,三堆村和岗背林场的果实性状归为一类;由相关分析结果得出,树体性状之间相关性大,单果重和果径呈极显著正相关,与鲜子率呈极显著负相关。综合而言,茶木淤林场、三堆村、岗背林场和小际头村这4个点的果实经济性状相对较高,可作为重点选优群体。
To study the tree and fruit character variation of Camellia chekiangoleosa Hu germplasm in Qingyuan county, 9habitats were investigated. The results showed that among all the samples collected, the variation degree of tree traits ranked from high to low as branch height, crown length, crown width, tree height, leaf length, leaf width, leaf shape index, the variation degree of fruit traits ranked from high to low as fruit number, fruit weight, tolal seed weight per fresh fruit, fresh weight per seed, fruit seed rate, seed number per fruit, dried seed rate. The fruit traits studied significantly differed among different habitats. Cluster analysis based on leaf traits grouped the samples from management protection station and Chamuyu forestry farm into the first cluster, Bankeng village and Xiaojitou village into the second cluster, Yangjiazhuang forestry farm and Chegen village into the third cluster. Cluster analysis based on fruit traits grouped samples from Sandui village and Gangbei forest farm into one cluster. According to correlation analysis, the tree characteristics were highly correlated; fruit weight was very significantly positively correlated with fruit diameter, while significantly negatively correlated with fruit seed rate.Through comprehensive analysis, the economic traits of fruit produced from 4 habits(Chamuyu forestry farm, Sandui village,Gangbei forestry farm and Xiaojitou village) were relatively high, which could be used as a key selection region.
To study the tree and fruit character variation of Camellia chekiangoleosa Hu germplasm in Qingyuan county, 9habitats were investigated. The results showed that among all the samples collected, the variation degree of tree traits ranked from high to low as branch height, crown length, crown width, tree height, leaf length, leaf width, leaf shape index, the variation degree of fruit traits ranked from high to low as fruit number, fruit weight, tolal seed weight per fresh fruit, fresh weight per seed, fruit seed rate, seed number per fruit, dried seed rate. The fruit traits studied significantly differed among different habitats. Cluster analysis based on leaf traits grouped the samples from management protection station and Chamuyu forestry farm into the first cluster, Bankeng village and Xiaojitou village into the second cluster, Yangjiazhuang forestry farm and Chegen village into the third cluster. Cluster analysis based on fruit traits grouped samples from Sandui village and Gangbei forest farm into one cluster. According to correlation analysis, the tree characteristics were highly correlated; fruit weight was very significantly positively correlated with fruit diameter, while significantly negatively correlated with fruit seed rate.Through comprehensive analysis, the economic traits of fruit produced from 4 habits(Chamuyu forestry farm, Sandui village,Gangbei forestry farm and Xiaojitou village) were relatively high, which could be used as a key selection region.
引文
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[2]累治国,黄永芳,何会蓉.油茶及其种质资源研究进展[J].经济林研究,2003,21(4):123-125.
[3]郭华,谭惠元,罗佳.红花油茶果的主要成分分析[J].中国油脂,2010,35(1):70-73.
[4]张福春.气候变化对中国木本植物物候的可能影响[J].地理学报,1995,50(5):403-408.
[5]杨军,邱日红,赵文进,等.浙江红花油茶种质资源及开发利用[J].现代园艺,2012(9):12-13.
[6]刘子雷,杨水平,姚小华,等.浙江红花油茶果实形态变异研究[J].林业科学研究,2007,20(2):263-266.
[7]王开良,姚小华,曹福宽,等.浙江红花油茶开花性状变异规律研究[J].江西农业大学学报,2010,32(2):334-338.
[8]刘子雷,姚小华,杨水平,等.浙江红花油茶果实经济性状变异的研究[J].西南大学学报(自然科学版),2007,29(4):83-88.
[9]唐启义,冯明光.实用统计分析及其DPS数据处理系统[M].北京:科学出版社,2002.