CAJ | 학술논문

为探明水稻千粒重的遗传关系，进而为水稻大粒品系选育提供理论参考，采用相关性及通径分析，对地方品种大粒王和鄂晚10号重组自交系 F5群体的千粒重与表观性状的相关性进行研究。结果表明：垩白粒率、株高与千粒重呈极显著正相关，分蘖数与千粒重呈极显著负相关；通径分析表明，垩白粒率对千粒重的直接作用最大；影响千粒重的主要作用为垩白粒率、株高和分蘖数的直接通径效应。
위탐명수도천립중적유전관계，진이위수도대립품계선육제공이론삼고，채용상관성급통경분석，대지방품충대립왕화악만10호중조자교계 F5군체적천립중여표관성상적상관성진행연구。결과표명：성백립솔、주고여천립중정겁현저정상관，분얼수여천립중정겁현저부상관；통경분석표명，성백립솔대천립중적직접작용최대；영향천립중적주요작용위성백립솔、주고화분얼수적직접통경효응。
In order to explore the genetic relationship of rice 1 000-gain weight,so as to provide a theoretical reference for large-seeded line breeding, the relationship between 1 000-gain weight and apparent traits of F5 population of rice recombinant inbred lines(Daliwang and Ewan 10)was studied. Results:The results showed that the chalky rice rate and plant height had a significantly positive correlation with 1 000-gain weight. The correlation of tillers and 1 000-gain weight were negatively significant.The path analysis showed that the chalky rice rate had a biggest direct action to the 1 000-gain weight,the main factors affecting 1 000-gain weight was the direct path effects of chalky rice rate,plant height and tiller number.