不同种源栓皮栎种子综合性状变异分析  

The Synthetical Trait Variation of Quercus variabilis Seeds from Different Provenance

作　　者：方芳 彭祚登[1] 赵静[1] 

机构地区：[1]省部共建森林培育与保护教育部重点实验室(北京林业大学),北京100083

出　　处：《东北林业大学学报》2013年第8期1-3,共3页Journal of Northeast Forestry University

基　　金：国家"十二五"林业公益行业专项基金资助项目(201004021)

摘　　要：收集了栓皮栎主要分布区5个种源的种子,分别测定了种子形态和营养成分含量指标,并分析了这些指标与产地环境因素的相关性。结果表明:栓皮栎种子长、种子宽、长宽比、百粒种子质量、淀粉质量分数、蛋白质质量分数、粗脂肪质量分数和可溶性糖质量分数,在种源间均存在显著差异;种子各形态性状中变异系数在9%～12%,营养成分含量的变异系数在4%～24%,且都是种源间变异程度大于种源内部;种子百粒种子质量与产地纬度呈显著正相关,种子长宽比与海拔呈显著正相关;种子蛋白质质量分数与年平均气温呈极显著负相关,与年平均日照呈显著正相关,种子可溶性糖质量分数与年平均降水量呈显著负相关;其他性状与环境因素相关性均不显著。We collected five provenance seeds from main distribution regions of Quercus variabilis to determine the seed charac- ters and the nutrient content, respectively. We took the correlation analysis of those traits with environmental factors. There are significant differences in seed length, seed diameter, seed weight, starch, protein, crude fat and soluble sugar content of seed among provenances. The coefficients of variation are 9% -12% in seed characters and 4% -24% in nutri- ent content, respectively, mainly within the provenances. The seed weight has significant positive correlation with the lati- tude and the length-diameter ratio of seed has significant positive correlation with elevation. Protein content has significant negative correlation with annual average temperature, but significant positive correlation with annual average sunshine. Sol- uble sugar content has significant negative correlation with annual average precipitation. Other traits have no significant correlation with the environmental factors.

关 键 词：栓皮栎 种源 形态指标 营养成分 环境因素 变异 

分 类 号：S722.5[农业科学—林木遗传育种] S792.189[农业科学—林学]