麻疯树种源/家系生长和结实变异研究  

Variation in Growth and Fruit Yield of Jatropha curcas Provenances /Families in Hainan,China

作　　者：沈俊岭[1] 骈瑞琪[2] 孙佩光[3] 陈晓阳[2] 

机构地区：[1]青岛农业大学园艺学院,青岛市现代农业质量与安全工程重点实验室,山东青岛266109 [2]华南农业大学林学院,广东省森林植物种质资源创新利用重点实验室,广东广州510642 [3]中国热带农业科学院海口实验站,海南海口571101

出　　处：《华南农业大学学报》2013年第4期537-542,共6页Journal of South China Agricultural University

基　　金：广东省自然科学基金团队项目(1064201000002)

摘　　要：从形态上调查了海南麻疯树Jatropha curcas试验基地2年生19个种源195个实生家系的田间生长性状．研究结果表明，麻疯树家系平均成活率为93.65％，树高为1.97 m，地径为6.85 cm，结实枝数为1.38个，结实数量为20个；变异系数介于11.50％～60.70％．不同省份、种源的各生长和结实性状存在显著差异，具有丰富的遗传变异．尽管只有成活率在家系间有差异显著，但上述5个性状的家系遗传变异系数（ GCV）均在1.14％～13.64％之间，表明家系间某些性状仍蕴藏着丰富的遗传变异．相关性分析表明，成活率与其他各性状相关性不明显；而树高、地径、结实枝数及结实数量之间具有显著的相关性．各性状与经纬度及海拔间无明显相关性，种源聚类结实也未发现明显的地理相关性，说明中国境内麻疯树的变异为随机的地理变异模式．Variation in growth and fruit yield of Jatropha curcas was assessed for the 2-year-old prove-nance/progeny trial plantation in Hainan .The trial consisted of 195 families from 19 provenances in four provinces of China .The following traits were assessed：survival, height, diameter at ground level , num-ber of fruiting branches and fruit yield .Overall mean survival , height, diameter at ground level , the number of fruiting branches and fruit yield were 93.65%, 1.97 m, 6.85 cm, 1.38 per tree and 20 per tree, respectively.The coefficient of variation varied from 11.50% to 60.70%.There were significant differences between provinces and between provenances from different counties in all growth traits whilst the differences among families were significant in survival only .For the five traits, the genetic coefficient of variation （ GCV） in the family ranged from 1.14%to 13.64%, indicating that there were rich genetic variations in some traits among families .All growth traits except survival were positively correlated with each other.However, these growth traits were not correlated with latitude , longitude and altitude of the Variation in growth and fruit yield of Jatropha curcas was assessed for the 2-year-old prove-nance/progeny trial plantation in Hainan .The trial consisted of 195 families from 19 provenances in four provinces of China .The following traits were assessed：survival, height, diameter at ground level , num-ber of fruiting branches and fruit yield .Overall mean survival , height, diameter at ground level , the number of fruiting branches and fruit yield were 93.65%, 1.97 m, 6.85 cm, 1.38 per tree and 20 per tree, respectively.The coefficient of variation varied from 11.50% to 60.70%.There were significant differences between provinces and between provenances from different counties in all growth traits whilst the differences among families were significant in survival only .For the five traits, the genetic coefficient of variation （ GCV） in the family ranged from 1.14%to 13.64%, indicating

关 键 词：麻疯树 种源 家系 变异 生长性状 结实枝条数 产量 

分 类 号：S722.5[农业科学—林木遗传育种]