| 玉米籽粒干物质积累、含水量及其对机收影响的研究 |
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| 引用本文： | 阮龙,王俊,陈义红,王世济,张玮,左晓龙,陈洪俭.玉米籽粒干物质积累、含水量及其对机收影响的研究[J].农业科学与技术,2011(12):1857-1860. |
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| 作者姓名： | 阮龙 王俊 陈义红 王世济 张玮 左晓龙 陈洪俭 |
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| 作者单位： | 安徽省农业科学院烟草研究所/玉米研究中心 |
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| 基金项目： | Supported by Supporting Program for Sci & Tech Research of China(2009BADA6B01);Natural Science Foundation of Anhui Province(090411017)~~ |
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| 摘 要： | 目的]研究玉米籽粒干物质积累、含水量及其对机收影响。方法]本文以郑单958、先玉335、弘大8号和蠡玉16为材料,对其籽粒干物质积累、含水量随授粉后天数变化情况进行了初步研究,同时探讨了郑单958和蠡玉16籽粒含水量对机械收获的影响。结果]夏播时郑单958和蠡玉16在授粉后51天左右达到生理成熟,先玉335和弘大8号在授粉后58天左右达到生理成熟;夏播玉米获得高产的收获适期,郑单958和蠡玉16在授粉后51天以上,先玉335和弘大8号在授粉后58天以上;达到生理成熟时郑单958、先玉335、弘大8号和蠡玉16籽粒含水量分别为33.74%、28.86%、32.05%和35.24%;郑单958和蠡玉16籽粒含水量在生理成熟含水量时采用机械收获,其籽粒损失率符合机械作业质量指标规定的范围（籽粒损失率0.84%≤2%）,籽粒破碎率未达机械作业质量指标规定的范围（籽粒破碎率10.12%1%）,说明郑单958和蠡玉16品种在生理成熟时不适合使用全喂入式联合收获籽粒机进行收获。结论]为了给improving the maize harvest index under delayed harvesting提供相关理论依据。
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| 关 键 词： | 玉米 粒重 含水量 生理成熟期 |
Dry Matter Accumulation,Moisture Content in Maize Kernel and Their Influences on Mechanical Harvesting |
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| RUAN Long,WANG Jun,CHEN Yi-hong,WANG Shi-ji,ZHANG Wei,ZUO Xiao-long,CHEN Hong-jian.Dry Matter Accumulation,Moisture Content in Maize Kernel and Their Influences on Mechanical Harvesting[J].Agricultural Science ＆ Technology,2011(12):1857-1860. |
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| Authors: | RUAN Long WANG Jun CHEN Yi-hong WANG Shi-ji ZHANG Wei ZUO Xiao-long CHEN Hong-jian |
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| Institution: | Maize Research Center & Tobacco Research Institute of Anhui Academy of Agricultural Sciences Hefei,Hefei 230031 |
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| Abstract: | Objective] The aim of this study was to investigate the dry matter accumulation,moisture content in maize kernel and their influences on mechanical harvesting.Methods] Using Zhengdan 958,Xianyu 335,Hongda 8 and Liyu 16 as experimental materials,we preliminarily measured the dynamic changes of dry matter accumulation and moisture content with the days after pollination lasted,and investigated the effect of moisture content in kernels on mechanical harvesting of Zhengdan 958 and Liyu 16.Results] During summer growing season,Zhengdan 958 and Liyu 16 became physiologically mature and suitable for harvesting at about 51 days after pollination,Xianyu 335 and Hongda 8 required 58 days to become physiologically mature and suitable for harvesting after pollination.At physiologically mature stage,the moisture contents in kernels of Zhengdan 958,Xianyu 335,Hongda 8 and Liyu 16 were respectively 33.74%,28.86%,32.05% and 35.24%,respectively.Adopting mechanical harvesting at physiologically mature stage,the kernel loss rate of Zhengdan 958 and Liyu 16 was consistent with the range of mechanical operation index(kernel loss rate of 0.84%≤2%),while the percentage of broken kernels did not accord with the range of mechanical operation index(kernel crashing rate of 10.12%≧1%).The results indicate that Zhengdan 958 and Liyu 16 are not suitable for mechanical harvesting using full feeding combine havester.Conclusion] This study provided theoretical basis for improving the maize harvest index under delayed harvesting. |
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| Keywords: | Maize(Zea mays) Kernel weight Moisture content Physiological mature stage |
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