| 不同玉米品种子粒脱水速率研究 |
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| 引用本文： | 张文杰,王永宏,王克如,赵健,赵如浪,李少昆.不同玉米品种子粒脱水速率研究[J].作物杂志,2016,32(1):76-3. |
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| 作者姓名： | 张文杰 王永宏 王克如 赵健 赵如浪 李少昆 |
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| 作者单位： | 1 宁夏农林科学院农作物研究所,750105,宁夏银川2 中国农业科学院作物科学研究所/农业部作物生理生态重点实验室,100081,北京 |
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| 基金项目： | 国家玉米产业技术体系银川综合试验站(CARS-02-67);国家自然科学基金(31260306);宁夏农林科学院科技创新先导资金项目(NKYQ-14-07) |
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| 摘 要： | 以郑单958、先玉335、农华101、登海11、中单909、正大12为研究材料,研究了子粒、苞叶、穗轴含水量及其脱水速率。结果表明：不同品种间的子粒、苞叶、穗轴含水量差异极显著,不同品种间的子粒脱水速率差异极显著。子粒含水量与苞叶、穗轴含水量呈极显著正相关,相关系数分别为0.777和0.267,苞叶含水量与穗轴含水量呈极显著正相关,相关系数为0.312。先玉335、农华101在子粒脱水前期较其他品种脱水快且快速脱水时间长,收获时（9月24日）的子粒含水量分别为25.40%和26.58%;符合机械收粒的标准,可作为机械收粒的备选品种。
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| 关 键 词： | 玉米 子粒 子粒含水量 脱水速率 机械收粒 |
| 收稿时间： | 2015-09-15 |
Grain Dehydration Rate of Different Maize Varieties |
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| Wenjie Zhang,Yonghong Wang,Keru Wang,Jian Zhao,Rulang Zhao,Shaokun Li.Grain Dehydration Rate of Different Maize Varieties[J].Crops,2016,32(1):76-3. |
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| Authors: | Wenjie Zhang Yonghong Wang Keru Wang Jian Zhao Rulang Zhao Shaokun Li |
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| Institution: | 1 Crop Research Institute of Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan 750105,Ningxia,China2 Institute of Crop Sciences,Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology,Ministry of Agriculture,Beijing 100081,China |
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| Abstract: | In this study, we investigated grain moisture content and dehydration rate of grain, subtending leaf, cob from different maize cultivars of Zhengdan 958, Xianyu 335, Nonghua 101, Denghai 11, Zhongdan 909 and Zhengda 12. The results showed that grain moisture content, subtending leaf moisture content, cob moisture content were significant difference among different maize varieties, dehydration rate of grain was significant difference among different maize varieties. Grain moisture content was highly significantly positively related with that of subtending leaf and cob, with correlation coefficients of 0.777 and 0.267, respectively. Moisture content of subtending leaf was highly significantly positively related with that of cob, and the correlation coefficient was 0.312. Xianyu 335 and Nonghua 101 showed a faster dehydration and a longer rapid dehydration than that of other varieties in the prophase of grain dehydration. At harvest, rain moisture contents of the two varieties were 25.40% and 26.58%, respectively. Their characteristics conformed to the standard of mechanical harvesting grain, which cowld be used as standby varieties. |
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| Keywords: | Maize Grain Grain moisture content Dehydration rate Mechanical harvesting grain |
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