Zhang Lei, Zheng Xi-Long, Qiu Dao-Shou, Cai Shi-Ke, Luo Huan-Ming, Deng Rui-Yun, Liu Xiao-Jin
Zhong Yao Cai. 2013 Oct;36(10):1573-6.
In order to provide theoretical and technological basis for the germplasm innovation and variety breeding in Dendrobium officinale, a study of the correlation between polysaccharide content and agronomic characters was conducted.
Based on the polysaccharide content determination and the agronomic characters investigation of 30 copies (110 individual plants) of Dendrobium officinale germplasm resources, the correlation between polysaccharide content and agronomic characters was analyzed via path and correlation analysis.
Correlation analysis results showed that there was a significant negative correlation between average spacing and polysaccharide content, the correlation coefficient was -0.695. And the blade thickness was positively correlated with the polysaccharide content, but the correlation was not significant. The path analysis results showed that the stem length was the maximum influence factor to the polysaccharide, and it was positive effect, the direct path coefficient was 1.568.
According to thess results, the polysaccharide content can be easily and intuitively estimated by the agronomic characters investigating data in the germpalsm resources screening and variety breeding. Therefore, it is a visual and practical technology guidance in quality variety breeding of Dendrobium officinale.
为铁皮石斛种质创新及品种选育提供理论和技术依据，开展多糖含量与农艺性状相关性研究。
基于30份（110株单株）铁皮石斛种质资源的多糖含量测定及农艺性状调查，通过通径分析和相关性分析方法分析多糖含量与农艺性状的相关性。
相关性分析结果显示，平均节间距与多糖含量呈显著负相关，相关系数为-0.695。叶片厚度与多糖含量呈正相关，但相关性不显著。通径分析结果表明，茎长对多糖的影响最大，为正向效应，直接通径系数为1.568。
根据这些结果，在种质资源筛选和品种选育中，通过农艺性状调查数据可简便直观地估算多糖含量。因此，这在铁皮石斛优质品种选育中是一种直观且实用的技术指导。
