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通过对５个水稻品种和１０个杂种二代的穗型构成性状的研究表明，穗型构成性状之间存在着很强的相关关系；穗型构成性状与单株穗数多是较强的负相关；株高、出苗至抽穗天数与大多数穗型构成性状是显著的正相关。通径分析中所选性状对主穗粒重的回归估计的可靠度为９６．８％。其中，主要起直接作用的二次枝梗数和千粒重是第１位因子；主要起间接作用的一次枝梗数、一次枝梗平均长度、粒数／１０ｃｍ一次枝梗是第２位因子。根据试验结果，育种中直接对第一位因子加以选择，同时兼顾第２位因子，可望育成穗粒多，旦粒大的高产品种。
Studies on the traits of the panicle types of five rice cultivars and 10 hybrids of the second generation showed that there was a strong correlation between the traits of the panicle traits. The panicle traits and the panicles per plant were mostly negative The correlations between plant height, emergence and heading date were significant positive correlation with most panicle traits. The reliability of the regression estimation of the traits selected for the main spike in the path analysis was 96.8%. Among them, the number of secondary branches and thousand-grain weight, which are mainly used directly, are the first factor. The number of primary branches, the average number of primary branches and the number of primary branches per 10 cm are the second factor. According to the test results, the direct selection of the first factor in breeding, taking into account the second factor, is expected to grow into high-yield varieties with large grains and large grains.