| 施氮量和灌溉方式的交互作用对东北粳稻稻米品质的影响 |
| |
| 引用本文： | 周婵婵,黄元财,贾宝艳,王岩,李瑞峰,王术,冯跃,Fugen Dou.施氮量和灌溉方式的交互作用对东北粳稻稻米品质的影响[J].中国水稻科学,2019,33(4):357-367. |
| |
| 作者姓名： | 周婵婵 黄元财 贾宝艳 王岩 李瑞峰 王术 冯跃 Fugen Dou |
| |
| 作者单位： | 1.沈阳农业大学 农学院/农业部东北地区作物栽培科学观测实验站,沈阳110866;2.中国水稻研究所,杭州311401;3. 德州农工大学 农业生命研究中心,美国 德克萨斯州 博蒙特,77713 |
| |
| 基金项目： | 国家重点研发计划资助项目(2016YFD0300104) |
| |
| 摘 要： | 目的]探讨不同灌溉方式和氮肥对水稻品质的影响及其互作效应。方法]以常规粳稻沈稻47和杂交粳稻粳优 586 为材料,进行防雨棚盆栽试验,设置浅水层灌溉、浅湿灌溉、轻干湿交替灌溉和重干湿交替灌溉4种灌溉方式及正常施氮(normal nitrogen, NN, 180 kg/hm^2)和高氮(high nitrogen, HN, 220 kg/hm^2)2种氮肥水平,研究不同肥水处理对稻米品质的影响。结果]灌溉方式和施氮量对稻米品质有明显的互作效应,在正常施氮和高氮水平下,稻米的加工品质、外观品质、营养品质和蒸煮食味品质均以轻干湿交替灌溉为佳。正常施氮水平下,重干湿交替灌溉下稻米的整精米率、胶稠度、最高黏度和崩解值低于浅水层灌溉,而其垩白度、垩白粒率、直链淀粉含量及消减值却高于浅水层灌溉。高氮水平下,重干湿交替灌溉处理的加工品质、外观品质、营养品质和蒸煮食味品质优于浅水层灌溉,但二者间差异不显著。灌溉方式对氨基酸的影响因施氮量和品种的不同而存在差异。常规施氮水平下,轻干湿交替灌溉显著提高了稻米的总氨基酸含量;高氮水平下,重干湿交替灌溉显著提高了沈稻47的氨基酸总量,而粳优586总氨基酸含量则在轻干湿交替灌溉处理下取得较高值,必需氨基酸和非必需氨基酸含量与总氨基酸含量趋势一致。结论]轻干湿交替灌溉方式可以改善稻米品质。在本研究条件下,沈稻 47和粳优586分别以轻干湿交替灌溉和施氮量为180 kg/hm^2和施氮量为220 kg/hm^2时,米质较好。
|
| 关 键 词： | 水稻 灌溉方式 氮肥 稻米品质 |
| 收稿时间： | 2019-01-28 |
| 修稿时间： | 2019-02-28 |
Effect of Interaction Between Nitrogen Rate and Irrigation Regime on Grain Quality of japonica Rice in Northeast China |
| |
| ZHOU Chanchan,HUANG Yuancai,JIA Baoyan,WANG Yan,LI Ruifeng,WANG Shu,FENG Yue,Fugen DOU.Effect of Interaction Between Nitrogen Rate and Irrigation Regime on Grain Quality of japonica Rice in Northeast China[J].Chinese Journal of Rice Science,2019,33(4):357-367. |
| |
| Authors: | ZHOU Chanchan HUANG Yuancai JIA Baoyan WANG Yan LI Ruifeng WANG Shu FENG Yue Fugen DOU |
| |
| Institution: | 1. College of Agronomy, Shenyang Agricultural University/Northeastern Crop Cultivation Science Observation and Experiment Station in Shenyang, Ministry of Agriculture, P. R. China, Shenyang 110866, China;2. China National Rice Research Institute, Hangzhou 311401, China;3. Texas A&M AgriLife Research Center, 1509 Aggie Dr., Beaumont, Texas 77713, USA |
| |
| Abstract: | 【Objective】The objective of this study is to elucidate the effects of nitrogen rates and irrigation regimes and their interactions on grain quality of rice. 【Method】Two rice cultivars, Shendao 47 (an inbred japonica cultivar) and Jingyou 586 (a hybrid japonica combination), were grown in pots. Four irrigation regimes, continuous flooded (CF), shallow-wet irrigation (SWI), alternate wetting and moderate drying (WMD) and alternate wetting and severe drying (WSD), and two nitrogen (N) rates, normal amount of N (NN, 180 kg/hm2), and high amount of N (HN, 220 kg/hm2), were designed during the whole growing season. 【Result】The interactions between N rates and irrigation regimes significantly affected grain quality of rice. The milling quality, appearance quality, nutrition quality and cooking and eating quality were better under WMD regime regardless of N rate. Under the NN treatment, the WSD regime decreased head rice rate, gel consistency, the peak viscosity and breakdown but increased the percentage of chalky grain and chalkiness, amylose content and setback as compared with the CF regime. Under the HN treatment, the grain quality of rice was slightly better under the WSD regime than under the CF regime, however, the differences in grain quality between the two irrigation regimes were not significant. The effects of irrigation regimes on total amino acid concentrations varied with N rates and cultivars. Under the NN rate, the WMD regime increased the total amino acid concentrations of both rice cultivars; under the HN rate, the WSD regime significantly increased the total amino acid concentrations of Shendao 47, while Jingyou 586 had higher total amino acid concentrations, and the concentrations of essential and non-essential amino acids followed the same trend as those of total amino acids. 【Conclusion】The WMD improved grain quality of the rice cultivars. To achieve high rice quality, the combinations between WMD and NN, and between WMD and HN were recommended for inbred rice Shendao 47 and hybrid rice Jingyou 586, respectively. |
| |
| Keywords: | rice irrigation regime nitrogen fertilizer grain quality |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国水稻科学》浏览原始摘要信息 |
| 点击此处可从《中国水稻科学》下载免费的PDF全文 |
|
