芹菜主要农艺性状的相关和通径分析

Genetic Correlation and Path Analysis of Major Agronomic Characters of Celery

以30个芹菜品种(系)为试验材料,对其9个主要农艺性状进行了相关和通径分析。结果表明,芹菜单株质量与株高、第1节叶柄长、第2节叶柄长、叶柄宽、叶柄厚、小叶长、单株叶片数和蘖芽数都存在正向相关,单株叶片数对单株质量的直接作用最大,通径系数为0.367 7,其它性状的直接作用大小依次为小叶长(0.233 1)、叶柄宽(0.231 8)、第1节叶柄长(0.129 0)、第2节叶柄长(0.104 9)、蘖芽数(-0.056 7)、株高(0.056 3)、叶柄厚(0.049 0)。

The correlation and path analysis of 9 main agronomic characters in 30 celery varieties （lines） were studied. The results showed that the individual plant weight had significant positive correlations with plant height, first petiole length, second petiole length, width and thickness of petiole, leaflet length, leaf number per plant and tiller buds number. And leaf number per plant had the most influence on the individual plant weight with the direct path coefficient 0.367 7. The influence order of other characters was leaflet length （0.233 1）, width of petiole （0.231 8）, first petiole length （0.129 0）, second petiole length （0.104 9）, number of tiller buds （-0.056 7）, plant height （0.056 3） and thickness of petiole （0.049 0）.