锥栗主栽农家品种生长与产量性状的变异分析  

Variation analysis of growth and yield traits in Castanea henryi cultivars

作　　者：白玮玮[1] 何艺凡 陈辉[1] 杨志坚[1] 郑国华[1] 李煜[1] 

机构地区：[1]福建农林大学经济林研究所,福建福州350002

出　　处：《森林与环境学报》2016年第3期360-366,共7页Journal of Forest and Environment

基　　金：东南地区锥栗高效生产关键技术研究与示范(2013BAD14B0405)

摘　　要：以15个锥栗主栽农家品种为材料,通过3 a的调查,研究了生长与产量性状的遗传变异情况,结果表明:不同农家品种间性状变异丰富,平均变异系数为23.84%;梢长和单株产量的变异较大,变异系数分别为36.57%、35.65%;不同农家品种间地径存在显著差异(P≤0.05),树高、梢长、单株结苞数、总苞重、坚果单粒重、出籽率以及单株产量均存在极显著差异(P≤0.01);各性状间存在一定的相关性,单株产量与单株结苞数相关性最高,相关系数为0.855,单株产量与树高、冠幅、坚果单粒重相关性较高,相关系数分别为0.458、0493、0.401;各性状值标准化后排名靠前的3个农家品种为处暑红、乌榛、红仔榛,可为锥栗杂交育种和遗传作图的亲本选配提供参考。Variation of growth and yield traits was analyzed among 15 Castanea henryi cultivars for 3 consecutive years. The results showed that traits varied significantly among cultivars,with average coeffcient of variation being 23. 84%. The variations of shoot length and yield per plant were relatively large with the variation coefficient of 36. 57% and 35. 65%,respectively. The basal diameter had significant difference among different cultivars（ P≤0.05）,and there were extremely significant differences（ P≤0.01）in tree height,shoot length,involucre number per plant,total involucre weight,per nut weight,seed rate and yield per plant.There was a considerable correlation between traits. The highest correlation coefficient was between yield per plant and involucre number per plant（ r = 0. 855）. The correlation coefficients of yield per plant to tree height,crown width and per nut weight were0.458,0.493 and 0.401,respectively. The 3 excellent cultivars were ‘Chushuhong＇,‘Wuzhen＇and‘Hongzizhen＇. The results of this study have provided a basis for selection of parents in crossbreeding and genome mapping.

关 键 词：锥栗 农家品种 性状 变异 

分 类 号：S792.17[农业科学—林木遗传育种]