论文部分内容阅读
[目的]为夏播花生的杂交育种提供参考。[方法]对22个河南省夏播花生品种(系)的主要农艺性状与单株生产力的相关及通径分析。[结果]相关分析表明,饱果率、百仁重与单株生产力呈极显著正相关,饱果数与单株生产力呈显著正相关,主茎高、侧枝长、秕果数与单株生产力呈极显著负相关。通径分析结果表明,各性状对单株生产力的直接贡献大小依次为:侧枝长>百仁重>饱果率>秕果数>饱果数>总分枝>结果枝>出米率>百果重>主茎高。[结论]在高产栽培中,河南省夏播花生生长后期应采取管理措施,以确保茎叶的营养物质较畅通快速地到达籽仁,提高百仁重,从而提高单株生产力。
[Objective] The aim was to provide reference for the hybrid breeding of summer sowing peanut. [Method] The correlation and path analysis of main agronomic characters and single plant productivity of 22 summer sowing peanut varieties (lines) in Henan province were studied. [Result] Correlation analysis indicated that there was a significant positive correlation between full fruit yield and hundred kernel weight and plant productivity. The full fruit number had significant positive correlation with plant productivity. The main stem height, branch length, fruit number and plant productivity There was a significant negative correlation. The results of path analysis showed that the direct contribution of each trait to plant productivity was as follows: side branch length> 100 kernel weight> full fruit rate> fruit number> full fruit number> total branch> result branch> rice output rate> 100 Fruit weight> main stem height. [Conclusion] In high-yielding cultivation, management measures should be taken in late sowing peanut in Henan Province to ensure that nutrients in stems and leaves reach the seed kernels more smoothly and quickly, and improve the yield per plant, thus improving the productivity per plant.