设施秋延迟番茄主要农艺性状与产量的相关通径分析

Path Analysis of Agronomic Characters in Tomato Cultivated in Greenhouse in Autumn

对16个番茄品种的13个农艺性状和产量进行了相关和通径分析。试验结果表明,单株产量和总采果数、株高、叶片数相关性达显著水平,相关系数分别为0.5386,0.6144和0.5182。回归和通径分析结果表明,早期采果数、平均单果质量、果肉厚、株高、总采果数对单株产量直接作用较大,早期采果数通过总采果数、第1穗果数、平均单果质量、株高、茎粗、果肉厚对单株产量间接作用均为负值且较大。

The correlation and path analysis of 13 agronomic characters were studied with 16 cultivars of tomato. The results correlation analysis showed that significant positive correlation existed between total yield and total fruit number （r=- 0.538 6＊）, the height of plant （r=-0.614 4＊）and the number of leaf （r=-0.0.518 2＊）. The results of path analysis showed the total yield was affected mostly by early total fruit number and average fruit weight and thickness of sarcoearp and height of plant and total fruit number, and was indirectly minus affected by early total fruit number.