开花后淹水对小麦旗叶叶肉细胞及产量的影响  

Effects of Post-anthesis Waterlogging on Flag Leaf Mesophyll Cell and Yield in Wheat

作　　者：田咏梅 许可[2] 周浩亮 谭秀山[3] 刘建栋[4] 毕建杰[3] 

机构地区：[1]文登市气象局,山东文登264400 [2]南京信息工程大学,南京210044 [3]山东农业大学作物生物学国家重点实验室,山东泰安271018 [4]中国气象科学研究院,北京100081

出　　处：《气象与环境科学》2013年第1期36-39,共4页Meteorological and Environmental Sciences

基　　金：国家"十二五"科技支撑计划科研项目(2011BAD32B02);公益性行业(气象)专项(GYHY201106024)资助

摘　　要：选用小麦品种济麦20和泰农18,采用池栽补灌淹水方法,研究开花期及灌浆期3、6、9、12 d淹水对小麦旗叶叶肉细胞形态及籽粒产量的影响。开花期淹水,减少叶肉细胞的裂解,延缓了旗叶衰老;灌浆期淹水,则加剧了叶肉细胞的裂解,旗叶的衰老加速。除淹水3 d外,两时期6-12 d淹水均引起籽粒产量降低。产量降低的主导因素是粒数的减少,其次是粒重的降低。Selecting wheat varieties of Jimai 20 and Tainong 18, the paper studied the effects of wa- terlogging on flag leaf mesophyll cell and yield under eight treatments. The treatments are waterlogged 3, 6, 9 and 12 d forms during anthesis and filling stage. The results showed that anthesis stage waterlogging delayed the flag leaf senescence by reducing the mesophyll cells death, while filling stage waterlogging in- tensified the mesophyll cells death. In addition to the flooded 3 d, others treatments all caused grain yield reduced. The decline of yield is mainly by the reduction of kernel number and then the lost of thousand seed weight.

关 键 词：小麦 淹水 叶肉细胞 产量 

分 类 号：S162.8[农业科学—农业气象学]