增氧灌溉对水稻生理特性和后期衰老的影响

doi:0.3969/j.issn.1001-7216.2010.03.008

摘要/Abstract

摘要： 以常规粳稻秀水09、杂交籼稻国稻6号和两优培九为试材，于2007-2008年采用大田试验，研究了增氧灌溉对水稻生理特性和后期衰老的影响。结果表明，与常规灌溉水相比，超微气泡水的溶氧量明显提高而且下降速率慢。增氧灌溉处理土壤氧化还原电位显著或极显著提高，有效穗数、结实率和产量显著提高。进一步分析表明，增氧灌溉处理下秀水09和两优培九叶片光合速率分别较对照提高了4.13%和3.78%；而且增氧灌溉显著提高叶片叶绿素和可溶性蛋白质含量，气孔导度也有较大的增加；此外，增氧灌溉处理还增强了水稻生育后期的根系功能，提高了叶片超氧化物歧化酶活性，降低了叶片丙二醛含量，延缓叶片衰老，延长了叶片功能期从而促进籽粒灌浆结实。

关键词: 水稻, 增氧灌溉, 生理特性, 衰老

Abstract: With the inbred japonica rice variety Xiushui 09, indica hybrid rice combinations Guodao 6 and Liangyoupeijiu as materials, a field experiment was conducted to study the effects of aerated irrigation on physiological characteristics and senescence at late growth stage of rice in 2007 and 2008. The dissolved oxygen concentration of aerated water was higher than river water with a slower decrease rate. The soil oxidationreduction potential under the aerated irrigation treatment was significantly higher than that of the traditional irrigation treatment at 0.05 or 0.01 level, resulting in a significant increment in number of effective panicles, seead setting rate and grain yield. Further research showed that aerated irrigation increased photosynthetic rate by 4.13% in Xiushui 09 and 3.78% in Liangyoupeijiu. The contents of chlorophyll and soluble protein and stomatal conductance under the aerated irrigation were significantly increased, which were the main cause of the increased photosynthetic rate. Furthermore, the aerated irrigation improved root function, increased the activity of superoxide dismutase and decreased the content of malondialdehyde in leaves after flowering, postponed the leaf senescence effectively，thus prolonged leaf functional period and promoted grain filling.

Key words: rice, aerated irrigation, physiological characteristics, senescence

朱练峰,刘学,禹盛苗,欧阳由男,金千瑜. 增氧灌溉对水稻生理特性和后期衰老的影响[J]. 中国水稻科学 2010,24(3): 257-263 . , DOI: 0.3969/j.issn.1001-7216.2010.03.008 .

ZHU Lian-feng,LIU Xue,YU Sheng-miao,OUYANG You-nan,JIN Qian-yu*. Effects of Aerated Irrigation on Physiological Characteristics and Senescence at Late Growth Stage of Rice[J]. Chinese Journal of Rice Science 2010,24(3): 257-263 ., DOI: 0.3969/j.issn.1001-7216.2010.03.008 .

参考文献

[1]代贵金, 岩石真嗣, 三木孝昭, 等. 不同耕作与施肥方法对水稻根系生长分布和活性的影响. 沈阳农业大学学报, 2008, 39(3): 274-278.

[2]章永松, 林咸永, 罗安程. 水稻根系泌氧对水稻土磷素化学行为的影响. 中国水稻科学, 2000, 14(4): 208-212.

[3]Maricle B R, Lee R W. Root respiration and oxygen flux in salt marsh grasses from different elevational zones. Mar Biol, 2007, 151: 413-423.

[4]Mancuso S, Boselli M. Characterisation of the oxygen fluxes in the division, elongation and mature zones of Vitis roots: Influence of oxygen availability. Planta, 2002, 214: 767-774.

[5]丁昌璞. 中国自然土壤、旱作土壤、水稻土的氧化还原状况和特点. 土壤学报, 2008, 45(1): 66-75.

[6]傅志强, 黄璜, 何保良, 等. 水稻植株通气系统与稻田CH4排放相关性研究. 作物学报, 2007, 33(9): 1458-1467.

[7]潘圣刚, 曹凑贵, 蔡明历, 等. 不同灌溉模式下氮肥水平对水稻氮素利用效率、产量及其品质的影响. 植物营养与肥料学报, 2009, 15（2）: 283-289.

[8]刘立军, 薛亚光, 孙小淋, 等. 水分管理方式对水稻产量和氮肥利用效率的影响. 中国水稻科学, 2009, 23(3): 282-288.

[9]Cannell R Q, Belford R K, Blackwell P S, et al. Effects of waterlogging on soil aeration and on root and shoot growth and yield of winter oats (Avena sativa L.). Plant & Soil, 1985, 85: 361-373.

[10]Zhang Y S， Scherer H W. Mechanisms of fixation and release of ammonium in paddy soils after flooding： Ⅳ. Significance of oxygen secretion from rice roots on the availability of non-exchangeable ammonium-a model experiment. Biol Fertil Soils, 2002, 35: 184-188.

[11]宋卫堂, 高丽红, 张树阁, 等. 深液流栽培番茄根际氧环境的试验研究. 中国农学通报, 2005, 21(1): 219-223.

[12]张旺锋, 王振林, 余松烈, 等. 膜下滴灌对新疆高产棉花群体光合作用冠层结构和产量形成的影响. 中国农业科学, 2002, 35(6): 632-637.

[13]Masayuki F, Tsuyoshi I, Takashi T, et al. Improvement of water quality by removal of suspended solids and high-speed biological filtration in closed water body. J Water & Environ Tech, 2003, 1(2): 233-238

[14]陈致泰, 李世刚, 韩光瑶, 等. 微气泡纯氧曝气技术用于河湖复氧治理. 水科学与工程技术， 2008(1): 17-19.

[15]孔祥生, 易现峰. 植物生理学实验技术. 北京: 中国农业出版社, 2008.

[16]赵世杰, 史国安, 董新纯. 植物生理学实验指导. 北京: 中国农业出版社, 2002.

[17]翟虎渠, 曹树青, 万建民, 等．超高产杂交稻灌浆期光合功能与产量的关系. 中国科学: C辑, 2002, 32(3): 211-217.

[18]范淑秀, 陈温福. 超高产水稻品种叶绿素变化规律研究初报. 沈阳农业大学学报, 2005, 36(1): 14-17.

[19]Chen G X, Liu S H, Zhang C J．Effects of drought on photosynthetic characteristics of flag leaves of a newly developed super-high-yield rice hybrid．Photosynthetica, 2004, 42(4): 573-578.

[20]陈贵, 周毅, 郭世伟, 等. 水分胁迫条件下不同形态氮素营养对水稻叶片光合效率的调控机理研究. 中国农业科学, 2007, 40(10): 2162-2168.

[21]林贤青, 朱德峰, 李春寿, 等. 水稻不同灌溉方式下的高产生理特性. 中国水稻科学, 2005, 19(4): 328-332.

[22]赵全志, 乔江方, 刘辉, 等. 水稻根系与叶片光合特性的关系. 中国农业科学, 2007, 40(5): 1064-1068.

[23]张荣萍, 马均, 王贺正, 等. 不同灌水方式对水稻结实期一些生理性状和产量的影响. 作物学报, 2008, 34(3): 486-495.

[24]王贵民, 陈国祥, 张美萍, 等. 高产杂交水稻剑叶全展后主要光合生理特征的研究. 核农学报, 2008, 22(5): 697-700.