董铭, 李海涛, 廖迎春, 梁涛, 卢存福. 大田条件下模拟UV-B辐射滤减对水稻生长及内源激素含量的影响[J]. 中国生态农业学报(中英文), 2006, 14(3): 122-125.
引用本文: 董铭, 李海涛, 廖迎春, 梁涛, 卢存福. 大田条件下模拟UV-B辐射滤减对水稻生长及内源激素含量的影响[J]. 中国生态农业学报(中英文), 2006, 14(3): 122-125.
DONG Ming, LI Hai-Tao, LIAO Ying- Chun, LIANG Tao, LU Cun-Fu. Influences of reduced UV-B radiation on growth and endogenesis hormone contents of rice (Oryza sativa L.)under field conditions[J]. Chinese Journal of Eco-Agriculture, 2006, 14(3): 122-125.
Citation: DONG Ming, LI Hai-Tao, LIAO Ying- Chun, LIANG Tao, LU Cun-Fu. Influences of reduced UV-B radiation on growth and endogenesis hormone contents of rice (Oryza sativa L.)under field conditions[J]. Chinese Journal of Eco-Agriculture, 2006, 14(3): 122-125.

大田条件下模拟UV-B辐射滤减对水稻生长及内源激素含量的影响

Influences of reduced UV-B radiation on growth and endogenesis hormone contents of rice (Oryza sativa L.)under field conditions

  • 摘要: 对大田栽培条件下人工模拟的UV-B辐射滤减环境对晚稻品种“协 优432”的叶绿素含量、株高、内源激素吲哚乙酸(IAA)、脱落酸(ABA)、赤霉素(GA3)、玉米素(Zeatin)含量的影响研究结果表明,在正常日光处理组与UV-A滤光组之间叶 绿素a含量变化显著;正常日光处理组与UV-A滤光组、UV-A+UV-B滤光组之间株高无明显变化。UV-A+UV-B滤光组IAA、GA3、Zeatin含量分别比正常日光处理组降低了40.42%、48.60%、36.21%;分别比UV-A滤光处理组降低了36.52%、70.94%、54.54%。单因素 方差分析及多重比较结果显示,UV-A+UV-B滤光组 与正常日光处理组之间I AA、GA3含量差异显著;UV-A+UV-B滤光组与UV-A滤光处理组之间GA3、Zeatin含量差异显著。UV-A+UV-B滤光组ABA含量比正常日光处理组降低了29.74%,比UV-A滤光处理组降低了5.19%,经 单因素方差分析后发现差异不显著。

     

    Abstract: The effects of artificially simulated UV-B radiation reduction under field conditions at Qianyanzhou region of Ji angxi Province on the growth and the contents of chlorophyll and endogenesis hor mones,indoleacetic acid (IAA),abscisic acid (ABA),gibberellinA3(GA3)and zeatin(Z),of rice variety ‘Xieyou 432’were studied.The results indicate that the UV-B radiation reduction induces the contents of chlorophyll change significantly,but no difference among the ambient control and treatments of UV-A and UV-A+UV-B is observed.The contents of IAA,GA3 and Z with the UV-A+UV-B treatment are significantly lower than those of ambient control,decreasing by 40.42%,48.60%,36.21%,respectively .Compared with the UV-A treatment the contents of IAA,GA3 and Z in the UV-A+UV-B treatment are decreased by 36.52%,70.94% and 54.54%, respectively.The ABA content of UV-A+UV-B treatment decreases by 29.74% compared with that of the ambient control,and by 5.19% compared with the UV-A treat ment.The results also indicate that reduced UV-B radiation has change d the contents of the four endogenesis hormones of the investigated rice cultivar,and accordingly may have adverse effects on the process of growth and development of rice.

     

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