%0 Journal Article
%T Study on the Effects of Nitrogen Forms on Photosynthetic Characteristics in Flue-Cured Tobacco<br>氮素形态对烤烟光合特性影响的研究
%A Guo Pei-guo
%A Chen Jian-jun
%A Zhang Yan-lin
%A <br>郭培国
%A 陈建军
%A 郑燕玲
%J 植物学报
%D 1999
%I 
%X The effects of nucleic acid antimetabolite on photoperiod-sensitive genic male sterility in rice (PGMR) were studied by the application of 5-fluorouracil (5-FU) to leaves. The results showed that 5-FU treatments decreased the panicle length and the spikelet number of Nongken 58S, but hastened heading and to some extent recoveried the fertility of PGMR under LD conditions; whereas 5-FU treatments inhibited the pollen fertility and the heading of rice varieties under SD conditions. The effects can be partially reversed by oratic acid. It can be concluded that photoperiod-sensitive genic male-sterility is caused by the changes of the metabolism of nucleic acid in young panicle.
%K <br>5-FU
%K 光敏核不育
%K 水稻
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=97AE3D0EBF25E42C466FEF50E492F710&aid=E2B108173ED833D4E5D7A8669FDC76E4&yid=B914830F5B1D1078&vid=7801E6FC5AE9020C&iid=38B194292C032A66&sid=30897FA31CA3354D&eid=866F8A6B640835A7&journal_id=1674-3466&journal_name=植物学报&referenced_num=0&reference_num=0