| 小麦产量性状与粒重性状的遗传分析 |
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| 引用本文： | 王晖,陈佳慧,王文文,兰进好,田纪春. 小麦产量性状与粒重性状的遗传分析[J]. 东北农业大学学报, 2012, 43(4): 31-36. DOI: 10.3969/j.issn.1005-9369.2012.04.006 |
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| 作者姓名： | 王晖 陈佳慧 王文文 兰进好 田纪春 |
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| 作者单位： | 1.青岛农业大学农学与植物保护学院,作物种质创新与品种改良实验室,山东青岛266109;2.山东农业大学农学院小麦品质育种研究室,国家作物生物学重点实验室,山东泰安271018 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)课题,山东省农业良种工程重大课题子课题,国家自然基金项目 |
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| 摘 要： | 以小麦6044×01-35杂交后获得的重组自交系群体为试材,对其产量性状与粒重性状予以遗传分析.结果表明,重组自交系群体产量性状均呈正态分布,有不同程度的变异;单穗粒重与穗长和千粒重呈极显著正相关,与单株穗数、行总粒重呈极显著负相关,与株高呈显著负相关;广义遗传力较高的为株高、穗下节间长、穗长、单株粒重和单穗粒重;由主成分分析可知,对穗粒重贡献最大的是单株粒重、穗下节间长、穗长、单株穗数;通过逐步回归分析和通径分析,单株粒重对单穗粒重有促进作用,直接通径系数最大,单株穗数对单穗粒重的负效应最高.
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| 关 键 词： | 小麦 产量性状 单穗粒重 遗传分析 |
Genetic analysis of yield and kernel weight traits in wheat |
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| WANG Hui , CHEN Jiahui , WANG Wenwen , LAN Jinhao , TIAN Jichun. Genetic analysis of yield and kernel weight traits in wheat[J]. Journal of Northeast Agricultural University, 2012, 43(4): 31-36. DOI: 10.3969/j.issn.1005-9369.2012.04.006 |
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| Authors: | WANG Hui CHEN Jiahui WANG Wenwen LAN Jinhao TIAN Jichun |
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| Affiliation: | 1.Laboratory of Crop Variety Improvement and Germplasm,College of Agronomy and Plant Protection,Qingdao Agricultural University,Qingdao Shandong 266109,China;2.Laboratory of Wheat Quality Breeding,State Key Laboratory of Crop Biology,College of Agronomy,Shandong Agricultural University,Tai’an Shandong 271018,China) |
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| Abstract: | Recombined inbred line(RIL) from the crosses of 6044×01-35 was used to study the genetic analysis of yield and kernel weight traits.The results showed that yield traits of RIL were normal distributed and had different extent of variations.Kernel weight per spike had positively significant correlations with ear length and thousand kernel weight;had negatively significant correlations with panicles per plant and total kernel weight per line,and had negatively correlations with plant height.Plant height,intermodal length below spike,ear length,grain weight per plant and kernel weight per spike had bigger broad sense heritability.Principle component analysis indicated that influencing kernel weight orderly was grain weight per plant,intermodal lengh below spike,ear length,panicles per plant.By using stepwise regression and path analysis,grain weight per plant promoted the kernel weight per spike,and had the largest direct path coefficients;panicles per plant had the biggest negative effect on kernel weight per spike. |
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| Keywords: | wheat yield trait kernel weight per spike genetic analysis |
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