| 播期和密度对不同玉米品种淀粉糊化特性和子粒品质的影响 |
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| 引用本文： | 孔令平,张海艳,赵延明.播期和密度对不同玉米品种淀粉糊化特性和子粒品质的影响[J].玉米科学,2014,22(3):98-102,108. |
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| 作者姓名： | 孔令平 张海艳 赵延明 |
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| 作者单位： | 青岛农业大学农学与植物保护学院/山东省旱作农业技术重点实验室, 旱地作物水分高效利用创新团队, 山东青岛266109;青岛农业大学农学与植物保护学院/山东省旱作农业技术重点实验室, 旱地作物水分高效利用创新团队, 山东青岛266109;小麦玉米周年高产高效生产协同创新中心, 山东泰安271018;青岛农业大学农学与植物保护学院/山东省旱作农业技术重点实验室, 旱地作物水分高效利用创新团队, 山东青岛266109;小麦玉米周年高产高效生产协同创新中心, 山东泰安271018 |
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| 基金项目： | 国家自然科学基金（31101100）、青岛市科技计划[11-2-4-5-（8）-jch]、作物生物学国家重点实验室开放课题（2013KF05）、山东省泰山学者建设工程项目 |
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| 摘 要： | 以农大108和青农105为材料，设置3个播期和6个密度处理，研究播期和密度对两个玉米品种淀粉糊化特性和子粒品质的影响。结果表明，品种间比较，淀粉峰值黏度、谷值黏度、崩解值、回复值、峰值时间、糊化温度差异显著；播期对糊化特征值及子粒淀粉、蛋白质含量的影响较大，密度的影响较小。晚播条件下，峰值黏度和谷值黏度显著升高，糊化温度显著降低；中播条件下，淀粉含量最低，蛋白质含量最高。因此，试验播期范围内，晚播有利于改良淀粉糊化特性，适期播种有利于改良子粒品质。
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| 关 键 词： | 玉米 淀粉糊化特性 子粒品质 播期 密度 |
| 收稿时间： | 2013/7/24 0:00:00 |
Effects of Sowing Date and Planting Density on Starch RVA Properties and Kernel Quality of Two Maize Varieties |
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| KONG Ling-ping,ZHANG Hai-yan and ZHAO Yan-ming.Effects of Sowing Date and Planting Density on Starch RVA Properties and Kernel Quality of Two Maize Varieties[J].Journal of Maize Sciences,2014,22(3):98-102,108. |
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| Authors: | KONG Ling-ping ZHANG Hai-yan and ZHAO Yan-ming |
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| Institution: | College of Agronomy and Plant Protection, Qingdao Agricultural University/Shandong Key Laboratory of Dry Farming Technique, Dry-Farming and Water-Saving Innovation Team, Qingdao 266109;College of Agronomy and Plant Protection, Qingdao Agricultural University/Shandong Key Laboratory of Dry Farming Technique, Dry-Farming and Water-Saving Innovation Team, Qingdao 266109;Cooperative Innovation Center of Efficient Production with High Annual Yield of Wheat and Corn, Tai'an 271018, China;College of Agronomy and Plant Protection, Qingdao Agricultural University/Shandong Key Laboratory of Dry Farming Technique, Dry-Farming and Water-Saving Innovation Team, Qingdao 266109;Cooperative Innovation Center of Efficient Production with High Annual Yield of Wheat and Corn, Tai'an 271018, China |
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| Abstract: | Nongda108 and Qingnong105 were planted in three sowing dates and six planting densities to determine the effects of sowing date and density on starch RVA properties and kernel quality of two maize varieties. The results indicated that peak viscosity, trough viscosity, breakdown, setback, peak time and pasting temperature of two varieties were significantly different. Sowing date had a great effect on RVA properties and starch content and protein content, but planting density had a little effect. In the late sowing date, peak viscosity and trough viscosity increased significantly, pasting temperature decreased significantly. In the middle sowing date, starch and protein content were the lowest and the highest, respectively. In this study, late sowing can improve starch RVA properties and middle sowing can improve kernel quality. |
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| Keywords: | Maize Starch RVA properties Kernel quality Sowing date Density |
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