通径分析方法在苎麻生产实践中的应用

将多元相关分析和通径分析方法应用到苎麻的生产实践中，讨论了苎麻的株高、茎粗、出麻率、鲜皮厚度等经济性状对纤维产量和单支纤维支数的影响。通过对变量作相关分析和通经分析，发现除鲜皮厚度外的其它各经济性状与纤维产量存在极显著正相关，与单纤维支数存在显著负相关。其中株高、茎粗、出麻率是构成纤维产量的3个关键因素；而且株高无论是直接效应还是间接效应，对苎麻纤维产量和单支纤维产量均表现出最大正向贡献或负向贡献，而鲜皮厚度的表现恰好与之相反。由此可见，在苎麻的培育过程中，应注重提高株高、茎粗的途径。

The Application of Path Analysis in Ramie Production Practice

This paper applies multi-correlation analysis and path analysis to study the relationbetween the economic features and fiber production of flax and its quality about ramie. Where the economic features considering are height, thickness, production rate and the thickness of the fresh skin. Through the partial correlation analysis and path analysis, we get that height contributes the most effect to the production and quality of the flax. And finds that the indirect effect between four economic features. Thickness of the fresh skin is just the opposite. From this paper, we should lay stress on channels to increase the height and thickness in ramie＇s breeding.