Effects of Cold Water Irrigation on Grain Quality Traits in japonica Rice Varieties from Yunnan Province， China

Abstract

Abstract: The response of grain quality traits to cold water irrigation were studied by using eleven improved japonica rice cultivars from Yunnan Province, China. The results indicated that the response of grain quality traits to cold water irrigation varied in either cultivars or grain quality traits. The grain width, chalky rice percentage, whiteness degree, 1000grain weight, brown rice rate, taste meter value, peak viscosity, trough viscosity, breakdown viscosity and final viscosity significantly decreased while grain lengthwidth ratio, head rice rate, alkali digestion value, protein content and setback viscosity markedly increased under cold water irrigation. However, the other traits such as grain length, amylose content, milled rice rate, time reaching peak viscosity and pasting temperature were not significantly affected by cold water irrigation. Significant correlation relationships were discovered between phenotypic acceptability and cold response index of taste meter value, protein content, peak viscosity and breakdown viscosity. Therefore it would be very important to improve the cold tolerance of Yunnan varieties in order to stabilize and improve their eating quality.

Key words: japonica rice, cold water irrigation, grain quality trait, cold tolerance, starch viscosity

摘要： 以11个云南粳稻品种为试验材料，研究冷水胁迫对稻米品质性状的影响以及水稻耐冷性与品质性状冷水反应的相关关系。结果表明，品质性状的冷水反应不仅与品种有关，也与具体的品质性状有关。冷水胁迫使粒宽、千粒重、垩白粒率、精米白度、糙米率、味度值、最高黏度、最低黏度、崩解值、最终黏度显著或极显著降低，使长宽比、整精米率、碱消值、蛋白质含量和消减值极显著增加，而粒长、精米率、直链淀粉含量、到达最高黏度时间（峰值时间）和起浆温度不因冷水胁迫发生明显变化。相关分析表明，成熟期综合耐冷性与稻米的味度值、蛋白质含量、最高黏度和崩解值的冷水反应指数具有显著或极显著相关性。因此，提高育成品种的耐冷性对稳定和改善稻米食味品质具有重要作用。

关键词: 粳稻, 冷水胁迫, 品质性状, 耐冷性, 淀粉黏滞特性

ZHAO Guozhen ,YANG Seajun ,YEA Jongdoo ,LIAO Xinhua ,SU Zhenxi ,SHI Rong ,JIANG Cong ,DAI Luyuan . Effects of Cold Water Irrigation on Grain Quality Traits in japonica Rice Varieties from Yunnan Province， China[J]. Chinese Journal of Rice Science.

赵国珍,杨世准,芮钟斗 ,廖新华,苏振喜,世荣,蒋聪 ,戴陆园, . 冷水胁迫对云南粳稻品质性状的影响[J]. 中国水稻科学.

References

[1]孟亚利, 周治国. 结实期温度与稻米品质的关系.中国水稻科学, 1997, 11(1): 51-54.

[2]韩龙植, 朴钟泽, 高熙宗. 水稻耐冷性对稻米品质冷水反应的影响. 中国农业科学, 2003, 36(7): 757-763.

[3]李训贞, 梁满中, 周广洽, 等. 水稻开花时的环境条件对花粉活力和结实的影响. 作物学报, 2002, 28(3): 417-420.

[4]李太贵, 沈波, 陈能, 等. Q 酶在水稻籽粒垩白形成中作用的研究. 作物学报, 1997, 23(3): 338-344.

[5]刘建. 环境因子对稻米品质影响研究进展. 湖北农学院学报, 2002, 22(6): 550554.

[6]程方民, 胡东维, 丁元树. 人工控温条件下稻米垩白形成变化及胚乳扫描结构观察.中国水稻科学, 2000, 14(2)： 83-87.

[7]盛婧, 陶红娟, 陈留根. 灌浆结实期不同时段温度对水稻结实与稻米品质的影响.中国水稻科学, 2007, 21(4): 396-402.

[8]张国发, 王绍华, 龙娟, 等. 结实期不同时段高温对稻米品质的影响. 作物学报, 2006, 32(2): 283-287.

[9]黄英金, 罗永锋, 黄兴作, 等. 水稻灌浆期耐热性的品种间差异及其与剑叶光合特性和内源多胺的关系. 中国水稻科学, 1999, 13(4): 205-210.

[10]蒋志农．云南稻作．昆明: 云南科技出版社， 1995： 149-151.

[11]韩龙植, 曹桂兰, 芮钟斗, 等. 水稻芽期耐冷性与其他耐冷性状的相关关系. 作物学报, 2004, 30(10): 990-995.

[12]韩龙植，乔永利，高熙宗，等. 水稻幼苗期耐冷性选择对主要农艺性状的影响. 中国水稻科学, 2002, 16(4): 315-320.

[13] 中华人民共和国农业部部颁标准. NY14788稻米品质评价方法.北京：中国标准出版社， 1988: 4-6.

[14]Bhattacharya K R. Gelatinization temperature of rice starch and its determination//Proceedings of the Workshop on Chemical Aspects of Rice Grain Quality. Manila: IRRI， 1979： 231-250.

[15]Juliano B O. Criteria and tests for rice grain qualities. Rice Chem & Tech, 1985， 55： 443-524.

[16]Lee M H. Evaluation of Rice Grain and Eating Quality. Suwon: National Crop Experiment Station， 2003: 3-23.

[17]Kurasawa F. Taste evaluation between tastemeter value and tastetest value//The Collected Thesis on the 43rd Japanese Family Conference. Tokyo： Japanese Family Association，1991: C80.

[18]AACC. Methods 6102 for RVA//Approved Methods of the AACC. 10th ed. St. Paul， MN： AACC， 2000.

[19]张小明, 石春海, 富田桂, 等. 粳稻米淀粉特性与食味间的相关性分析. 中国水稻科学， 2002， 16(2)： 157-161.

[20]赵国珍，杨世准，苏振喜，等. 云南高原粳稻和韩国粳稻品质特性比较分析. 中国水稻科学, 2008, 22(3)： 331-334.

[21]舒庆尧, 吴殿星, 夏英武, 等. 稻米淀粉RVA谱特征与食用品质的关系. 中国农业科学， 1998， 31(3)： 25-29.

[22]隋炯明，李欣，严松，等.稻米淀粉RVA谱特征与品质性状相关性研究. 中国农业科学， 2005， 38(4)： 657-663..