红麻短日条件下自然群体有效株高与始花节位的相关和回归分析

Correlation and Regression Analysis of Kenaf Natural Population Between First Flower Node and Effective Plant Height Under Short Day-light

红麻是锦葵科木槿属一年生韧皮纤维作物,以收获韧皮部纤维为主要目的。本研究以海南三亚种植的红麻自然群体为研究对象,分别选取随机选取红麻早熟、中熟、晚熟品种各6个,每个品种随机选取9株测量有效株高和始花节位并对其进行相关分析和回归分析。研究结果表明红麻的始花节位和有效株高呈显著性线性相关。始花节位可以作为红麻纤维产量育种的一个重要育种标记。

Kenaf is a kind of annual bast fiber crop which belongs to Hibiscus Maliace and its main obejectvie is phloem fibe. In this study,we randomly selected 18 varieties from kenaf natural group plan-ted in Hannan Sanya as research objective, which belongs to early variety, medium variety, late variety separately. And then 9 plants were randomly selected from each variety to measure the effective plant height and first flower node. We made the correlation analysis and regression analysis between effective plant height and first flower node from these plants. The results showed signficant linear correlation be-tween effective plant height and first flower node. The first flower node can be uesd as an important mark-er of fiber yiele breeding of kenaf.