The aim is to clarify the effects of low temperature at booting stage on seed- setting rate and physiological characteristics of leaves. This study was conducted with two rice cultivars‘Longjing11’(cold sensitive) and‘Longdao5’(cold tolerant) which were planted in pots. At booting stage, the low temperature treatments (15℃, lasting 1, 2, 3, 4, 5 d) were carried out in climatic laboratory. The effects of low temperature on leaf membrane permeability and antioxidant enzymes of the cultivars were discussed. The results showed that the seed-setting rate of‘Longdao5’had little change in the low temperature condition, and the seedsetting rate of‘Longjing11’decreased significantly. The activities of SOD, POD and CAT in leaves first showed an increasing trend then a decreasing trend. The activities of antioxidase, contents of soluble sugar and soluble protein of‘Longdao5’were higher than those of‘Longjing11’, but the content of malondialdehyde (MDA) and relative conductivity were lower than that of‘Longjing11’. It indicated that low temperature stress at booting stage could influence the physiological index such as membrane permeability and activities of antioxidant enzyme, and reduce the seed-setting rate.
[1] Ezaz Al Mamun, Laurence C. Cantrill, Robyn L. Overall, et al. Mechanism of low-temperature-induced pollen failure in rice[J]. Cell Biology International, 2010, 34(5):469-476.
[2] De Datta SK . Principles and Practices of Rice Production[M]. New York: Robert E. Krieger publishing company, 1981.
[3] Renata Pereira da Cruz, Raul Antonio Sperotto, Denise Cargnelutti, et al. Avoiding damage and achieving cold tolerance in rice plants[J]. Food and Energy Security, 2013, 2(2): 96-119.
[4] Cheng C, Yun KY, Ressom HW, et al. An early response regulatory cluster induced by low temperature and hydrogen peroxide in seedlings of chilling-tolerant japonica rice[J]. BMC Genomics, 2007, 8:175.
[5] Oliver SN, Dennis ES, Dolferus R. ABA Regulates apoplastic sugar transport and is a potential signal for cold-induced pollen sterility in rice. Plant Cell Physiol, 2007,48:1319-1330.
[6] 赵国珍, YANG Sea jun, YEA Jong doo, 等. 冷水胁迫对云南粳稻育成品种农艺性状的影响[J].云南农业大学学报, 2010,25(2): 158-165.
[7] 刘献刚. 低温冷害对水稻产量的影响及应对措施[J].现代农业科技, 2013,(1): 69-70.
[8] 李健陵, 霍治国, 吴丽姬, 等. 孕穗期低温对水稻产量的影响及其生理机制[J]. 中国水稻科学, 2014,28(3): 277-288.
[9] 李忠杰, 王春艳, 王连敏, 等. 低温冷害对黑龙江省不同水稻品种产量的影响及防御措施[J]. 黑龙江农业科学, 2007,(4): 17-19.
[10] 李全英, 李海波. 孕穗期低温胁迫对北方杂交粳稻颖花结实的影响[J]. 作物杂志, 2011,(1): 71-73.
[11] 李桂艳. 低温冷害对水稻生育及产量的影响及防御措施[J]. 农业科技通讯, 2010,12:164-165.
[12] 叶昌荣, 戴陆园, 王建军, 等. 低温冷害影响水稻结实率的要因分析[J]. 西南农业大学学报, 2000,22(4): 307-309.
[13] 曲辉辉, 姜丽霞, 朱海霞, 等. 孕穗期低温对黑龙江省主栽水稻品种空壳率的影响[J]. 生态学杂志, 2011,30(3): 489-493.
[14] 施大伟, 张成军, 陈国祥, 等. 低温对高产杂交稻抽穗期剑叶光合色素含量和抗氧化酶活性的影响[J]. 生态与农村环境学报, 2006,22(2): 40-44.
[15] 邓化冰, 王天顺, 肖应辉, 等. 低温对开花期水稻颖花保护酶活性和过氧化物积累的影响[J]. 华北农学报, 2015,25(增刊): 62-67.
[16] 邓化冰, 史建成, 肖应辉, 等. 开花期低温胁迫对水稻剑叶保护酶活性和膜透性的影响[J]. 湖南农业大学学报(自然科学版), 2001,37 (6): 581-585.
[17] 张献国, 陈书强, 薛菁芳, 等. 孕穗期低温对寒地水稻叶片保护酶活性的影响[J]. 中国稻米, 201521(4): 77-80.
[18] 刘涛, 何霞红, 李成云, 等. 不同低温处理对元阳梯田传统水稻品种孕穗期保护酶活性的影响[J]. 分子植物育种, 2014,12(3):525-529.
[19] 祝涛, 杨美英. 低温处理对不同品种水稻苗期保护酶活性的影响[J]. 吉林农业, 2010,(7): 89
[20] 朱珊, 熊宏亮, 黄仁良, 等. 低温胁迫对水稻生理指标的影响[J]. 江西农业学报, 2013,25(7): 10-12.
[21] 蒋向辉, 余显权, 赵福胜, 等.苗期特耐冷贵州地方水稻品种孕穗期耐冷性研究[J]. 山地农业生物学报, 2004,23(4): 288-292.
[22] 王秋京. 低温对水稻秧苗电导率及可溶性糖含量的影响[J]. 黑龙江气象, 2011,28(4): 25-26.
[23] 李海林, 殷绪明, 龙小军. 低温胁迫对水稻幼苗抗寒性生理生化指标的影响[J]. 安徽农学通报, 2006,12(11): 50-53.
[24] 王晨光, 王希, 苍晶, 等. 低温胁迫对水稻幼苗抗冷性的影响[J]. 东北农业大学学报, 2004,35(2): 129-134.
[25] 李合生, 孙群, 赵世杰, 等. 植物生理生化试验原理和技术[M]. 北京: 高等教育出版社, 2000:167-169; 184-185.
[26] 张宪政. 作物生理研究法[M]. 北京: 农业出版社, 1992:201-202.
[27] 夏楠, 赵宏伟, 吕艳超, 等. 灌浆结实期冷水胁迫对寒地粳稻籽粒淀粉积累及相关酶活性的影响[J]. 中国水稻科学, 2016,30(1): 62-74.
[28] Morsy MR, Jouve L, Hausman JF, et al. Alteration of oxidative and carbohydrate metabolism under abiotic stress in two rice (Oryza sativa L.) genotypes contrasting in chilling tolerance[J]. Journal of plant physiology, 2007,164: 157-167.
[29] Oda S, Kaneko F, Yano K, et al. Morphologicaland gene expression analysis under cool temperature conditions in rice anther development[J]. Genes and genetic systems, 2010, 85: 107–120.
[30] 曾宪国, 项洪涛, 王立志, 等. 孕穗期不同低温对水稻空壳率的影响[J]. 黑龙江农业科学, 2014(6): 19-21.
[31] 邓化冰, 车芳璐, 肖应辉, 等. 开花期低温胁迫对水稻花粉性状及剑叶理化特性的影响[J]. 应用生态学报, 2011,22 (1): 66-72.
[32] 张桂莲, 张顺堂, 肖浪涛, 等. 抽穗开花期高温胁迫对水稻花药、花粉粒及柱头生理特性的影响[J]. 中国水稻科学, 2014,28(2): 155-166.
[33] 潘沁红, 沈波. 苗期低温锻炼对水稻叶片生理性状的影响[J]. 杭州师范学院学报(自然科学版), 2005,4(1): 43-45.
[34] 刘祖琪, 张石城. 植物抗性生理学[M]. 北京: 中国农业出版社, 1994, 43-44.