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籼型三系杂交稻产量及其构成因素分析
引用本文:朱满山,符福鸿,黄慧君,李传国,梁世胡,王 丰.籼型三系杂交稻产量及其构成因素分析[J].中国农学通报,2005,21(1):100-100.
作者姓名:朱满山  符福鸿  黄慧君  李传国  梁世胡  王 丰
作者单位:广东省农业科学院水稻研究所,广东,广州,510640
基金项目:国家863计划(2002AA2070002)优质超级稻三系杂交稻新组合培育技术研究与应用.
摘    要:通过对在华南生产上大面积推广应用或新选育的5个不育系和6个恢复系进行不完全双列杂交产生的杂种, 2003年晚造种植杂种和其亲本(保持系和恢复系)并在收获后进行考种,对三系杂交稻亲本与其系列的产量及产量构成因素进行相关分析和对组合产量构成因素与产量进行通径分析。结果表明:保持系的每株穗数、每穗粒数、千粒重与其不育系系列组合对应性状分别呈显著、显著和极显著正呈显著正相关,每穗粒数与其不育系系列组合单株产量呈显著正相关;恢复系每株穗数与其系列组合每株穗数呈极显著正相关,结实率与其系列组合千粒重,千粒重与其系列组合每穗粒数均呈显著负相关。对于杂交稻组合选育,选育高产组合本身首先结实率要高,出于优质考虑千粒重较小,选择穗数适中的大穗型。

关 键 词:三系杂交稻  产量及产量构成因素  相关  通径分析

Analysis on the Yield Components Factors in Three-line indica Hybrid
Zhu Manshan,Fu Fuhong,Huang Huijun,Li Chuanguo,Liang Shihu,Wang Feng.Analysis on the Yield Components Factors in Three-line indica Hybrid[J].Chinese Agricultural Science Bulletin,2005,21(1):100-100.
Authors:Zhu Manshan  Fu Fuhong  Huang Huijun  Li Chuanguo  Liang Shihu  Wang Feng
Institution:(Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640)
Abstract:Five CMS lines and six restore lines that had been wide unitized or newly developed in south China were crossed according to the incomplete diallel crossed method and 30 hybrid crosses were obtained. The hybrid crosses and its parent (maintain line and restorer line) were planted in Guangzhou at late rice 2003. Compared and correlated with the yield Components factors between parent and its Series combination; The correlation was The yield Components factors of the hybrids and yield were analyzed with path analysis. The result show that the correlation was respectively significant, significant and very significant positive in panicles per plant, grains per panicle and 1000-grain weight between the maintain lines and its series combination. Panicles per plant of the maintain lines was significantly and positively related to yield per plant of its series combination. The correlation was significant positive in panicles per plant between the restore lines and its series combination. There were all significant and negative between seed setting rate of the restore lines and 1000-grain weight of its series combination, between 1000-grain weight of the restore lines and panicles per plant of its series combination. It was contribution to hybrid breeding with high yield and little chalkiness quality by increased seed setting rate and grains per panicle based on proper panicles per plant and lower 1000-grain weight in combinations.
Keywords:Three-line hybrid  Yield components  Correlation  Path analysis
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