| 黄淮旱地小麦品种产量性状演变研究 |
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| 引用本文： | 刘新月,裴磊,卫云宗.黄淮旱地小麦品种产量性状演变研究[J].农学学报,2015,5(7):1-8. |
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| 作者姓名： | 刘新月 裴磊 卫云宗 |
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| 作者单位： | 山西省农业科学院小麦研究所,山西省农业科学院小麦研究所,山西省农业科学院小麦研究所 |
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| 基金项目： | 国家重点基础研究发展计划“973计划”项目“气候变化对我国粮食生产资源要素的影响机理研究”，国家(“863”)计划项目“抗旱节水品种筛选与高效用水种植技术”，山西省农科院育种工程项目“抗旱优质高产小麦新品种选育” |
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| 摘 要： | 【目的】研究1986-2014年黄淮旱地冬小麦品种产量及其结构性状变化规律,为旱地小麦育种适应未来耕作制度和气候变化提供理论依据和技术支撑。【方法】利用近30年来国家黄淮旱地冬小麦区域试验临汾点的对照品种产量及其结构性状的资料,研究旱地小麦品种产量性状的演变规律,并进行产量及其结构性状变异的相关和通径分析。【结果】通过分析获得如下结果：①1986—2014年产量及其结构性状的变异状况为产量＞有效穗＞株高＞穗粒数＞千粒重,尤其是2006—2014年各产量结构和产量性状变异偏离程度均最大。②黄淮旱地小麦品种千粒重和穗粒数逐年缓慢上升,有效穗数和产量及株高缓慢下降。③相关分析表明,产量与株高、有效穗和千粒重均成极显著正相关。④通径分析表明,在黄淮旱地小麦高产育种进化中,对产量贡献较大且为正效应的有株高、穗粒数。【结论】耕作制度和气候变暖对黄淮旱地冬小麦产量及结构性状变化趋势有较强的影响,选育株高较低、有效穗数较高、千粒重大的高产抗旱品种是黄淮旱地小麦适应未来气候变化的育种改良方向。
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| 关 键 词： | 保鲜膜 保鲜膜 保鲜剂 贮藏 甜瓜 |
| 收稿时间： | 2015/1/3 0:00:00 |
| 修稿时间： | 2015/1/17 0:00:00 |
Study on Variations of Yield Traits for Dryland Wheat Varieties in Huang-Huai Plain |
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| Liu Xinyue,Pei Lei,Wei Yunzong.Study on Variations of Yield Traits for Dryland Wheat Varieties in Huang-Huai Plain[J].Journal of Agriculture,2015,5(7):1-8. |
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| Authors: | Liu Xinyue Pei Lei Wei Yunzong |
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| Abstract: | 【Objective】The change law of yield traits and compositions in Huanghuai dryland winter wheat varieties from 1986 to 2014 were studied. The purpose of this study was to provide a theoretical basis and technical support for dryland wheat breeding adapting to the cropping system and climate change in future.【Method】 Using the data of nearly 30 years the states dryland winter wheat regional test in Huanghuai at Linfen point, have studied the evolution law of yield traits and compositions of check varieties, meanwhile, correlation analysis and path analysis were conducted that variation of yield traits. 【Results】The results of analysis of the evolution of yield traits s were obtained as follows: ①The variation of yield traits and compositions from 1986 to 2014 is to yield >effective ear > plant height > spike grain number per spike > 1000-grain weight, especially deviation degree of yield traits and compositions from 2006 to 2014 is the largest. ②1000-grain weight and the spike grain number of dryland wheat varieties in Huanghuai slowly rising year by year, effective ear Numbers and grain yield and plant height is slowly decline. ③Correlation analysis showed that grain yield has a extremely significant positive correlation with plant height, effective ear and 1000-grain weight. ④Path analysis showed that the biggest direct contribution and positive effect to grain yield was plant height and spike grain number, in huanghuai dryland wheat high-yield breeding evolution.【Conclusion】Farming system and climate warming have an on the variations of yield traits and compositions of dryland winter wheat in Huanghuai, the wheat variety of resistance drought and high yield breeding with lower plant height, higher effective panicle number and 1000-grain weight is dryland wheat breeding improvement direction adapting to climate change in future in Huanghuai. |
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| Keywords: | Huanghuai Dryland Winter Wheat Yield Traits |
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