[1]杨文飞,杜永林,顾大路,等.4种调节物质对水稻耐低温能力的影响[J].江苏农业学报,2017,(04):739-746.[doi:doi:10.3969/j.issn.1000-4440.2017.04.003]
 YANG Wen-fei,DU Yong-lin,GU Da-lu,et al.Effects of four kinds of regulatory agents on cold-tolerance of rice[J].,2017,(04):739-746.[doi:doi:10.3969/j.issn.1000-4440.2017.04.003]
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4种调节物质对水稻耐低温能力的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2017年04期
页码:
739-746
栏目:
遗传育种·生理生化
出版日期:
2017-08-30

文章信息/Info

Title:
Effects of four kinds of regulatory agents on cold-tolerance of rice
作者:
杨文飞1杜永林2顾大路1贾艳艳1王伟中1吴传万1杜小凤1文廷刚1彭杰1
(1.江苏徐淮地区淮阴农业科学研究所,江苏淮安223001;2.江苏省农业委员会,江苏南京210036)
Author(s):
YANG Wen-fei1DU Yong-lin2GU Da-lu1JIA Yan-yan1WANG Wei-zhong1WU Chuan-wan1DU Xiao-feng1WEN Ting-gang1PENG Jie1
(1.Institute of Agricultural Sciences of Huaiyin in Xuhuai District of Jiangsu Province, Huai’an 223001,China;2.Jingsu Provincial Commission of Agriculre,Nanjing 210036,China)
关键词:
水稻孕穗期调节物质低温胁迫耐低温能力
Keywords:
ricebooting stageregulating materiallow-temperaturechill-resistance
分类号:
S511.01
DOI:
doi:10.3969/j.issn.1000-4440.2017.04.003
文献标志码:
A
摘要:
为了筛选提高水稻后期耐低温能力的调节物质,以淮稻5号为试验材料,在低温胁迫条件下研究壳聚糖、水杨酸、脱落酸、聚乙二醇等物质对水稻耐低温能力的影响。试验结果表明:低温胁迫使水稻倒二叶的叶绿素含量和SOD、POD酶活性下降,脯氨酸、MDA含量增加,且随着低温胁迫时间的延长,水稻倒二叶中活性物质含量或活性受影响程度越大;喷施壳聚糖、水杨酸、脱落酸和聚乙二醇均能提高低温胁迫下水稻倒二叶中叶绿素含量和SOD、POD酶活性,降低脯氨酸、MDA含量,提高水稻结实率和千粒质量,且随着低温胁迫时间的延长,水杨酸、聚乙二醇处理提高水稻倒二叶中酶活性和水稻结实率、千粒质量的效果更好。说明,在低温胁迫下可以通过提前喷施水杨酸、聚乙二醇等调节物质来增加水稻体内耐低温能力的活性物质的含量或活性,提高水稻的耐低温能力,减轻低温胁迫对水稻叶片的伤害,降低低温胁迫对水稻产量的影响。
Abstract:
Rice variety Huaidao 5 was adopted to investigate the effects of regulatory agents chitosan, salicylic acid, abscisic acidand polyethylene glycol on low temperature tolerance in cold-stressed rice. Cold stress decreased the content of chlorophyll, SOD and POD activities, and increased the proline and MDA content in the second leaf from the top of rice. The prolongation of cold stress resulted in greater negative effect on the content of active substances in the second leaf from the top of rice. The applications of chitosan, salicylic acid, abscisic acid or polyethylene glycol could increase the content of chlorophyll, SOD and POD activities, decreased the contents of MDA and proline in the second leaf from the top of rice, and improved the seed setting rate and 1 000-grain weight. The salicylic acid and polyethylene glycol showed better effects on the improvemont of enzymes activities in the second leaf from the top of rice, suggestive of higher contents of cold-tolerant active substances and smaller damage to rice leaves and yields caused by low temperature in salicylic acid and polyethylene glycol applied rice.

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备注/Memo

备注/Memo:
收稿日期:2017-01-23 基金项目:江苏省重点研发计划(现代农业)项目(BE2015331);江苏省“六大人才高峰”项目(2015-NY-045);淮安市重点研发计划(现代农业)项目(HAN201614);江苏省农业三新工程项目[SXGC(2015)164] 作者简介:杨文飞(1975-),男,江苏淮安人,副研究员,硕士,从事植物生长调节剂的研发与推广工作。(Tel)0517-83660771;(E-mail)13952383328@139.com 通讯作者:顾大路, (Tel)0517-83660771;(E-mail) gudalu666@aliyun.com
更新日期/Last Update: 2017-09-01