%0 Journal Article
%T Influences of reduced UV-B radiation on growth and endogenesis hormone contents of rice (Oryza sativa L.) under field conditions<br>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
%A DONG Ming
%A LI Hai-Tao
%A LIAO Ying- Chun
%A LIANG Tao
%A LU Cun-Fu
%A <br>董 铭
%A 李海涛
%A 廖迎春
%A 梁 涛
%A 卢存福
%J 中国生态农业学报
%D 2006
%I 
%X The effects of artificially simulated UVB radiation reduction under field conditions at Qianyanzhou region of Jiangxi Province on the growth and the contents of chlorophyll and endogenesis hormones,indoleacetic acid(IAA),abscisic acid(ABA),gibberellinA_3(GA_3)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,GA_3 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 UVA treatment the contents of IAA,GA_3 and Z in the UVA 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 treatment.The results also indicate that reduced UV-B radiation has changed 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.
%K Rice(Oryza sativa L
%K )
%K Field conditions
%K UV-B radiation reduction
%K Growth
%K Endogenesis hormone<br>水稻
%K 大田条件
%K UV-B辐射滤减
%K 生长
%K 内源激素
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=6BE91D5E6585729E&yid=37904DC365DD7266&vid=F3583C8E78166B9E&iid=38B194292C032A66&sid=B62E0EEFE746E568&eid=F122871CC7EC92DC&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=1&reference_num=22