保护地旱黄瓜主要农艺性状的相关与通径分析

Study on Correlation and Path Analysis of the Main Agronomic of characters of Cucumber

以保护地专用旱黄瓜8个品种(系)作为试材,在保护地弱光条件下对旱黄瓜的18个农艺性状进行相关分析,并对产量性状进行通径分析。相关分析结果表明:单瓜重、瓜长、前期产量、叶面积、节间长与总产量呈极显著正相关;果形指数、茎粗与总产量呈显著正相关;第一雌花节位与总产量呈显著负相关;二十节内的雌花数、节间长与前期产量呈显著正相关,第一雌花节位与前期产量呈显著负相关;品质与产量性状相关不显著。通径分析结果表明:二十节内雌花数对前期产量的直接通径系数最大为0.8617,其次为单瓜重;单瓜重对总产量正相关的直接作用最大,其次为瓜长、二十节内雌花数。这为保护地专用早熟、优质、丰产旱黄瓜新品种的选育提供了理论依据。

With eight greenhouse species of Cucumber (Cucumis sativus L.)take as experimental materials, the correlation and path analysis of eighteen characters of cucumber were studied in this paper,the results of correlation analysis revealed that the number of fruits per plant, average fruit weight, the length of fruit, the high of plant, the diameter of fruit, vine length and leaf area were related to the yield positively. The results on path analysis showed that the yield was affected mostly by two economic characters, the number of fruit per plant and average fruit.