不同土壤肥力对各年代小麦品种产量及农艺性状的影响 |
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引用本文: | 裴艳婷,李娜娜,丁汉凤,谢连杰,孙敬海,刘鹏,靳义荣. 不同土壤肥力对各年代小麦品种产量及农艺性状的影响[J]. 中国农学通报, 2018, 34(4): 1-8. DOI: 10.11924/j.issn.1000-6850.casb17010061 |
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作者姓名: | 裴艳婷 李娜娜 丁汉凤 谢连杰 孙敬海 刘鹏 靳义荣 |
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作者单位: | 德州市农业科学研究院,山东省农作物种质资源中心,山东省农作物种质资源中心,招远市农业技术推广中心,德州市农业科学研究院,德州市农业科学研究院,德州市农业科学研究院 |
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基金项目: | 山东省科技发展计划“山东省近六十年主推小麦品种磷效率演变及磷高效品种的筛选与利用”(2012G0021031);山东省自然科学基金“环 境因子对不同年代主推小麦品种矿质元素效率的调控效应”(ZR2014YL017);山东省农业科学院青年科研基金“不同年代小麦品种矿质元素效率演 变规律和元素间的相关性及遗传基础研究”(2014QNM09);公益性行业(农业)科研专项(201303007);山东省农业科学院高层次人才引进与青年英才 培养计划。 |
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摘 要: | 旨在有效指导小麦品种选育及推广,对于种质资源的合理利用也具有重要意义。以山东省不同年代主推的25个小麦品种为材料,研究2种土壤肥力下产量的演变规律,明确农艺性状与产量间的相关性。试验结果表明,不同肥力条件下产量提高趋势相同,其中高肥增幅最大;各年代产量高肥较低肥增产幅度不同,其中20 世纪50、60 年代表现为-9.02%、-1.80%;土壤肥力对穗粒数、穗数、50 及60 年代小麦产量的影响无明显差异,对其他性状差异均达到显著水平,肥力与品种互作对穗数影响较大;不同肥力下产量构成因素间呈正相关性,为穗数>千粒重>穗粒数;土壤肥力对穗长、小穗数有明显影响。早期品种已不适应现代农业生产,在小麦演替中肥沃的地力和适宜的品种有效促进高产;维持较高的地力贡献,可促进产量构成因素协调增长,有助于育种工作者选育目标的确定。
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关 键 词: | 氯虫苯甲酰胺 氯虫苯甲酰胺 高效液相色谱 二氯甲烷 标准曲线 |
收稿时间: | 2017-01-12 |
修稿时间: | 2017-03-10 |
Influence of Soil Fertility on Yield and Agronomic Characters of Wheat Varieties Released |
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Abstract: | The aim is to provide guidance for wheat breeding and popularization, as well as rational utilization of germplasm resource. 25 leading wheat varieties of different years in Shandong Province were used as materials to study the evolvement rule of yield under two kinds of soil fertility, and the correlation of agronomic characters and yield was determined. The experimental results showed that, the yields under different soil fertility had the same increasing trend, and high soil fertility had the biggest amplification. Compared with low soil fertility, the amplification of yield under high soil fertility was different in different years, and the amplification in the 1950s and 1960s was -9.02% and -1.80%, respectively. Soil fertility had no significant effects on grains per spike, spike numbers, and yield in the 1950s and 1960s, but showed significant differences on other traits. The interaction between fertility and variety had greater influence on spike numbers. The yield components had positive correlations: spike numbers>thousand kernel weight> grains per spike, and soil fertility had significant effect on ear length and spikelet number. Varieties of earlier years were not suitable for modern agricultural production, and rich soil fertility and suitable variety effectively improved yield in wheat alternation. Higher contribution of soil fertility could promote the coordinated increase of yield components, and help to determine the breeding objects. |
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Keywords: | wheat yield agronomic character soil fertility correlation |
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