| 灌浆结实期短日照对稻米品质的影响 |
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| 引用本文： | 刘奇华,周学标,杨连群,李天,杜本怀. 灌浆结实期短日照对稻米品质的影响[J]. 江苏农业学报, 2009, 25(4) |
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| 作者姓名： | 刘奇华 周学标 杨连群 李天 杜本怀 |
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| 作者单位： | 1. 山东省水稻研究所,山东,济宁,272177
2. 四川农业大学农学院,四川,雅安,625014 |
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| 基金项目： | 农业部公益性行业(农业)科研专项，山东省农业良种工程项目，四川省教育厅重点研究资助项目 |
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| 摘 要： | 选用奶皇后(粳稻)、星丰(籼稻)为材料,通过人为控制短日照长度,设置13 h、12 h、11 h日长,探讨灌浆期短日照对稻米品质的影响.结果表明:灌浆期短日照条件下,籽粒直链淀粉含量达最大值的天数明显缩短,直链淀粉积累速率增加,直链淀粉含量最大值降低,稻米直链淀粉含量、胶稠度显著降低,垩白率、垩白度、蛋白质含量显著增加,粒型无显著变化.相关分析显示:日照长度与精米率呈显著正相关(r=0.744 4),与垩白率、垩白度、蛋白质含量呈显著或极显著负相关(r依次为 -0.913 8、-0.927 6和 -0.733 5).灌浆期短日照使稻米外观、加工、食味品质下降,营养品质提高.
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| 关 键 词： | 灌浆期 短日照 稻米 品质 |
Effects of Short Day-light Length at Grain Filling Stage on Grain Quality in Rice |
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| LIU Qi-hua,ZHOU Xue-biao,YANG Lian-qun,LI Tian,DU Ben-huai. Effects of Short Day-light Length at Grain Filling Stage on Grain Quality in Rice[J]. Jiangsu Journal of Agricultural Sciences, 2009, 25(4) |
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| Authors: | LIU Qi-hua ZHOU Xue-biao YANG Lian-qun LI Tian DU Ben-huai |
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| Affiliation: | 1.Shandong Rice Research Institute;Jining 272177;China;2.College of Agronomy;Sichuan Agricultural University;Yaan 625014;China |
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| Abstract: | To understand the relationship between light length and rice quality,the effects of short day-light length at grain filling stage on rice quality were investigated by using two cultivars,Millky queen(Japonica) and Hoshiyutaka(Indica).Short day-light length under 13 h at grain filling stage significantly decreased Gel,amylose content,and increased chalky rate,chalky degree,protein content,while did not change grain size prominently.Short day-light length also shortened the time needed by amylose content to m... |
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| Keywords: | grain filling stage short day-light length grain quality rice |
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