The weed community affects yield and quality of soybean (Glycine max (L.) Merr.)
The weed community affects yield and quality of soybean (Glycine max (L.) Merr.)
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杂草群落影响大豆的产量和质量 (Glycine max (L.) Merr.)
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
B. Young
中科院分区：
文献类型：
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作者：
D. Gibson;K. Millar;Michael K. Delong;J. Connolly;L. Kirwan;A. Wood;B. Young
背景：杂草群落与大豆（Glycine max（L.）梅尔）在美国伊利诺斯州的两个实验中评估种子产量和质量。在一个田地中，不同比例的目标杂草（三裂叶豚草（Ambrosia trifida L.），野苋Amaranthus rudis J.Sauer和狗尾草Setaria faberi F. Herrm）播种到实验地块中，并且另一块田地自然地被这些和其它杂草侵染。在这两个领域的杂草群落的组成进行了比较，大豆产量，生物量，冠层覆盖和质量（%蛋白质，油，相对含水量，种子重量），使用非度量维尺度排序。结果：在试验田中，目标杂草占优势的地块收获的大豆产量低，品质差，特别是在大豆田中。trifida和一群下属志愿者在自然感染的田间，大豆蛋白含量最高的是与S。在生长季节初期，豚草和常春藤在生长季节后期出现，而在生长季节初期，豚草和常春藤的含量较低。在整个生长季节，结论：两个试验的结果相似，表明大豆种子产量和质量受杂草群落组成的影响。生产者需要管理杂草群落以优化种子质量。版权所有© 2007化学工业协会
BACKGROUND: The relationship between the weed community and soybean (Glycine max (L.) Merr.) seed yield and quality was assessed in two experiments in Illinois, USA. In one field different proportions of target weeds (Ambrosia trifida L., Amaranthus rudis J. Sauer, and Setaria faberi F. Herrm) were sown into experimental plots, and the other field was naturally infested with these and other weeds. The composition of the weed communities in both fields was compared to soybean yield, biomass, canopy cover and quality (% protein, oil, relative water content, and seed weight) using non-metric dimensional scaling ordination. RESULTS: In the experimentally sown plots, low yield and low quality soybeans were harvested from plots dominated by the target weeds, particularly A. trifida, and a suite of subordinate volunteers. In the naturally infested field, highest soybean protein was associated with S. faberi early in the season and Ambrosia artemisiifolia and Ipomea hederacea later in the season, and low amounts of A. rudis throughout the growing season. CONCLUSION: Similar results from the two experiments indicate that soybean seed yield and quality are affected by the composition of the weed community. Producers need to manage the weed community to optimize seed quality. Copyright © 2007 Society of Chemical Industry