期刊论文

Phenotypic Diversity of Natural Miscanthus lutarioriparius Populations and Effect of Soil Nutrients on Its Phenotypes

中文

西北植物学报

1000-4025

2019

39

10

1868-1880

10.7606/j.issn.1000-4025.2019.10.1868

国家自然科学基金(31871693) 湖南农业大学第二批重大科研项目暨创新团队培育工程(540421800809)。

本校为第一机构

为明确中国南荻(Miscanthus lutariori parius)野生居群的分布及其表型多样性,该研究对54个南荻野生居群的8种表型性状的多样性进行分析,并测定其土壤pH和肥力指标,分析土壤对南荻部分重要表型的影响及其相互关系.结果 表明:(1)8种表型性状在居群间和居群内都存在极显著差异(P＜0.01),且差异主要来自于居群内.(2)8种表型性状相互间具有明显的相关性,节数和茎粗与株高均呈极显著正相关关系(P＜0.01),分枝数和株高与干物质产量均呈显著正相关关系(P＜0.05),茎密度与大部分性状呈负相关关系,而最大节长与除株高外的其他表型性状都无显著相关性.(3)8种表型性状可降维成4个主成分因子(产量因子、株型...

In the present study, we selected 54 natural Miscanthus lutarioriparius populations to study their geographical distribution pattern and phenotypic diversity. These selected populations evenly distributed in the naturally occurrence range of M. lutarioriparius across China. Their phenotypic traits were measured during the field investigation conducted at the end of 2017 growing seasons, including the plant height, stem diameter, pitch number, length of the longest stem, branch number, shoot density, dry weight per stem and dry matter yield. And the soil pH and soil fertility were also determin...