李琬,项洪涛,何宁,王雪扬,王彤彤,王曼力,唐晓东,李一丹.烯效唑对苗期低温胁迫下红小豆产量及茎部抗逆生理指标的影响[J].干旱地区农业研究,2020,38(2):199~206
烯效唑对苗期低温胁迫下红小豆产量及茎部抗逆生理指标的影响
Effects of uniconazole on yield and stem anti\|stress physiology of adzuki bean under low temperature stress during seedling stage
  
DOI:10.7606/j.issn.1000-7601.2020.02.28
中文关键词:  低温胁迫  烯效唑  红小豆  茎部  逆境生理指标  产量
英文关键词:low temperature stress  uniconazole  adzuki bean  stem  stress physiological index  yield
基金项目:植物生理学与生物化学国家重点实验室开放课题(SKLPPBKF1803);国家食用豆产业技术体系项目(CARS-08-04B);国家杂粮工程技术研究中心开放课题(ZLKF201701);黑龙江省农业科学院应用研发项目(2018YYYF003)
作者单位
李琬 黑龙江省农业科学院耕作栽培研究所黑龙江 哈尔滨 150086 
项洪涛 黑龙江省农业科学院耕作栽培研究所黑龙江 哈尔滨 150086 
何宁 黑龙江省农业科学院耕作栽培研究所黑龙江 哈尔滨 150086 
王雪扬 黑龙江省农业科学院耕作栽培研究所黑龙江 哈尔滨 150086 
王彤彤 黑龙江省农业科学院耕作栽培研究所黑龙江 哈尔滨 150086 
王曼力 黑龙江省农业科学院耕作栽培研究所黑龙江 哈尔滨 150086 
唐晓东 黑龙江省农业科学院耕作栽培研究所黑龙江 哈尔滨 150086 
李一丹 黑龙江省农业科学院耕作栽培研究所黑龙江 哈尔滨 150086 
摘要点击次数: 860
全文下载次数: 483
中文摘要:
      盆栽条件下,以耐冷性不同的2个红小豆(Vigna angularis)品种宝清红(耐冷型)和天津红(冷敏型)为材料,于苗期在人工气候室进行低温(15℃,分别持续1、2、3、4、5 d)及喷施烯效唑(S3307)处理,研究苗期低温胁迫下烯效唑对红小豆产量和茎部逆境生理指标的影响。结果表明:幼苗期低温引起红小豆茎部SOD活性提高,宝清红在处理第2天达到最高,较CK(室外常温)高15.35%;而天津红在处理第3天时达到最高,较CK高20.73%。POD和CAT活性也有所提高,处理3 d时酶活性最高,与CK相比较,宝清红和天津红分别提高了75.31%和4.55%、63.50%和22.22%。低温处理也导致红小豆植株茎部MDA含量增加,低温处理5d后,天津红和宝清红茎部MDA含量分别达到0.052 μmol·g-1和0.053 μmol·g-1,与处理1d相比,增加了0.033 μmol·g-1和0.027 μmol·g-1,分别提高了1.74倍和1.04倍。低温处理5 d,宝清红和天津红的产量分别下降了19.39%和41.69%。S3307具有抵御低温的作用,能有效增加红小豆植株茎部可溶性蛋白含量,宝清红和天津红都是在处理3 d时含量达到最高,与喷施清水相比,分别提高了3.45%和3.74%;S3307显著降低MDA含量,处理5 d时,与喷施清水相比,宝清红和天津红分别下降了4.25%和4.55%;同时显著提高POD活性,宝清红和天津红都是在处理3d时活性达到最高,与喷施清水相比,分别提高了3.52%和11.16%。低温处理5 d,喷施S3307提高宝清红和天津红的产量,提高幅度分别为23.06%和43.88%。综上,低温胁迫下,不同品种红小豆茎部逆境生理响应存在显著差异;喷施S3307能够缓解低温胁迫对红小豆的伤害。
英文摘要:
      In order to investigate the resistance physiology and yield of different adzuki bean varieties and the mitigation effect of uniconazole under low temperature, a pot experiment resrch was conducted in artificial climate chamber. The crop cultivars included cold tolerant and cold sensitive, Baoqinghong and Tianjinhong. The treatment of low temperature (15℃) and spraying S3307 in seedling period of adzuki bean were applied. The lasting days of low temperature (15℃) in the experiment were 1, 2, 3, 4, 5 days, respectively. The purpose was to analyze the effect of uniconazole on the anti\|stress physiological index and yield of adzuki bean against low temperature. The result showed that the physiological indexes in stem of adzuki bean under low temperature were changed during seedling stage, the SOD activities in stem of adzuki bean increased due to the low temperature stress during seedling stage, Baoqinghong increased 15.35% compare with CK at the 2d while Tianjinhong increased 20.73% at the 3 d. The activities of POD and CAT also increased, and the activities were the highest when treated for 3 days. Compared with CK, the activities of POD and CAT of Baoqinghong and Tianjinhong increased by 75.31% and 4.55%, 63.50% and 22.22%, respectively. The content of MDA was also increased, and after 5 days of low temperature treatment, Tianjinhong and Baoqing reached 0.052 μmol·g-1 and 0.053 μmol·g-1, respectively. Compared with treated 1 day, it increased 0.033 μmol·g-1 and 0.027 μmol·g-1, that is, 1.74 times and 1.04 times, respectively. When the stress lasted 5 d, the yield of Baoqinghong and Tianjinhong decreased by 19.39% and 41.69%. Uniconazole had the effect of enhancing low temperatures and reducing crop damage. It effectively increased the content of soluble proteins, and the content in Baoqinghong and Tianjinhong reached the highest when treated for 3 days, Compared with water, it increased by 3.45% and 3.74%, and it significantly reduced the MDA content. When treated for 5 d, compared with spraying water, MDA in Baoqinghong and Tianjinhong decreased by 4.25% and 4.55%, respectively. Meanwhile, POD activity significantly improved. Both of Baoqinghong and Tianjinhong reached the highest at 3 d, which were 3.52% and 11.16% higher than that of spraying water treament, respectively. Spraying uniconazole increased the yield of Baoqinghong and Tianjinhong by 23.06% and 43.88%, respectively. This study concluded that there were significant differences in physiological responses between different adzuki bean varieties, and spraying uniconazole can effectively mitigate damage of low temperature stress on adzuki bean.
查看全文  查看/发表评论  下载PDF阅读器