| 胡麻种子产量与主要农艺性状的多重分析 |
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| 引用本文： | 伊六喜,萨如拉,张辉,斯钦巴特尔,贾霄云,高凤云,周宇,张立华,任龙梅.胡麻种子产量与主要农艺性状的多重分析[J].安徽农业科学,2018,46(6):33-36. |
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| 作者姓名： | 伊六喜 萨如拉 张辉 斯钦巴特尔 贾霄云 高凤云 周宇 张立华 任龙梅 |
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| 作者单位： | 内蒙古农牧业科学院,内蒙古呼和浩特,010031;包头医学院药学院,内蒙古包头,014060 |
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| 基金项目： | 内蒙古自治区自然科学基金(亚麻品质性状与SSR标记的关联分析)(2017MS0383)，国家自然科学基金(采用连锁不平衡关联分析技术定位胡麻脂肪酸成分相关QTL)(31760400)，国家特色油料产业技术体系(CARS-14) |
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| 摘 要： | 目的]探寻影响胡麻种子产量的主要农艺性状,为选育高产胡麻品种提供科学依据。方法]对343份胡麻种质的种子产量与株高、工艺长度、分枝数、株果数、果粒数、千粒重、开花日数、全生育日数8个主要农艺性状进行相关性、多元回归和通径分析。结果]胡麻的主要农艺性状变异系数达3.83%~24.93%,平均变异系数为16.77%,平均遗传多样性指数为1.97;株果数、果粒数、千粒重对种子产量的总影响达到92.17%,能较好地预测胡麻种子产量的变化;株果数和分枝数与种子产量成极显著正相关(P0.01),而且株果数对种子产量的直接作用最大(P=0.742),相关系数最高(r=0.776)。结论]株果数是决定胡麻种子产量的主要农艺性状。
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| 关 键 词： | 胡麻 种子产量 农艺性状 相关性分析 多元回归 通径分析 |
Multiple Analysis of Seed Yield and Main Agronomic Traits in Flax |
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| Abstract: | Objective] To explore the main agronomic traits affecting seed production of Linum usitatissimum L.,and to further provide scientific basis for breeding high-yield varieties.Method] The correlation analysis,multiple regression analysis and path analysis between seed yield and eight main agronomic traits of 343 L.usitatissimum germplasm were carried out,including plant height,stem length,branch number,bolls per plant,seeds per boll,1 000-seed weight,flowering days,number of growing days.Result] The variation coefficient of main agronomic traits was 3.825％-24.928％ with the average coefficient of variation being 16.76％,the average genetic diversity index was 1.97.The impact of three factors(capsule number per plant,seeds per capsule,1 000-seed weight) on L.usitatissimum seed yield reached 92.17％ or more,which could well predicted the change of seed production.Capsule number per plant and branch number had extremely significant positive correlation (P ＜0.01) to seed yield,the direct effect of capsule number per plant on seed yield was the largest (P =0.742) with its correlation coefficient being the highest (r =0.776).Conclusion] Capsule number per plant was the main agronomic trait determining the seed yield. |
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