CAJ | 학술논문

[目的]研究粳稻三系亲本亲子间性状的相关性.[方法]以BT型粳稻不育系、保持系及恢复系各16个为供试材料,配制229个杂交粳稻组合,测定其农艺性状、产量性状和品质性状,并对数据进行相关性分析.[结果]杂种的多数性状由不育系和恢复系共同决定,杂种与中亲值的相关性最好,杂种与高亲值的相关性一般好于与低亲值的相关性.抽穗期、穗总粒数等性状与不育系关系较为密切,株高、穗实粒数、结实率、单株产量、品质性状与恢复系关系较为密切.所有产量性状亲子间的相关系数均小于0.7,说明杂种的产量性状还与双亲的特殊配合力有密切的关系.[结论]该研究为杂交粳稻育种提供配合力好的亲本资源,并为生产应用提供优质高产的杂交粳稻组合.
[목적]연구갱도삼계친본친자간성상적상관성.[방법]이BT형갱도불육계、보지계급회복계각16개위공시재료,배제229개잡교갱도조합,측정기농예성상、산량성상화품질성상,병대수거진행상관성분석.[결과]잡충적다수성상유불육계화회복계공동결정,잡충여중친치적상관성최호,잡충여고친치적상관성일반호우여저친치적상관성.추수기、수총립수등성상여불육계관계교위밀절,주고、수실립수、결실솔、단주산량、품질성상여회복계관계교위밀절.소유산량성상친자간적상관계수균소우0.7,설명잡충적산량성상환여쌍친적특수배합력유밀절적관계.[결론]해연구위잡교갱도육충제공배합력호적친본자원,병위생산응용제공우질고산적잡교갱도조합.
[Objective]The purpose was to study the correlation of traits between parent and parent-child of three-line japonica rice. [Method]With male sterile lines, maintainer lines and restorer lines of BT-type japonica rice as test materials, 229 hybrid japonica combinations were prepared and their agronomic traits, yield traits and quality traits were determined to make correlative analysis on the obtained data. [Result]Most traits of hybrid were decided jointly by male sterile lines and restorer lines. The correlation between hybrid and mid parent value was the best. The correlation between hybrid and high parent values was generally better than that between hybrid and low parent values. Some traits such as heading date, grain number per panicle had closer relationship with the male sterile lines. Plant height, grain numbers per ear, seed setting rate, yield per plant, quality traits had closer relationship with the restorer lines. Correlation coefficients of all yield traits between parent and child were all less than 0.7, which indicated that there was a close relationship between yield traits of hybrid and specific combining ability of parents. [Conclusion]The study provided the parental resources with good combining ability for hybrid rice breeding and offered the hybrid japonica combinations with good quality and high yield, which could be applied in production.