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本试验用9个栽培红花品种为材料,对单株粒重进行了通径分析。结果表明,分枝高度、百粒重和单株有效果球数是影响单株种子产量的3个主要因素。在一级分枝数和单株有效果球数多的类型中,或者在分枝较高而粒大的类型中,选择大粒材料上,均可提高单株粒重。但是,选择技高材料时,必须兼顾始花开花天数。油用红花育种中,应特别注意通过选择来降低单株无效果球数。
In this experiment, 9 cultivated safflower cultivars were used as materials to conduct path analysis of grain weight per plant. The results showed that the branch height, the weight of 100 seeds and the number of effective bolls per plant were the three main factors affecting the seed yield per plant. In the type of the number of primary branches and the effective number of balls per plant, or in the branches with high and large types, the selection of large grain materials, grain weight per plant can be increased. However, the choice of high technology materials, we must take into account the beginning of flowering days. Oil safflower breeding, special attention should be paid to reduce the number of balls per plant by selection.