玉米品种耐淹形态指标筛选及其耐淹光合生理特性研究.PDF

安徽农业大学学报, 2014, 41(4): 533-539 Journal of Anhui Agricultural University [DOI] 10.13610/ki.1672-352x021 网络出版时间：2014-6-20 11:27:42 [URL] /kcms/doi/10.13610/ki.1672-352x021.html 玉米品种耐淹形态指标筛选及其耐淹光合生理特性研究 1 1 2 1 1 1 3* 王成雨 ，宋 贺 ，胡玲惠 ，李金才 ，肖伟伟 ，刘国勇 ，程备久 (1. 安徽农业大学农学院，合肥 230036 ；2. 阜南县农业科学研究所，阜阳 236300 ；3. 安徽农业大学生命科学学院，合肥 230036) 摘 要：在大田条件下，以 16 个生产上主推玉米品种为材料，对玉米品种耐淹性进行了鉴定，并探讨了不同 耐淹型品种的光合生理差异。结果表明，淹水后玉米穗粒数下降，千粒重上升，产量下降；根据产量与相对受害率 的关系，16 个玉米品种可以分为高产耐淹型、低产耐淹型、低产不耐淹型和高产不耐淹型 4 类；叶片重、根冠比 和叶茎比可以作为衡量玉米品种耐淹能力的重要形态指标；高产耐淹型玉米品种在不淹水和淹水条件下，均表现为 开花期最早；高产耐淹型玉米品种叶绿素含量和光合速率在淹水后 10 d 已经与对照无显著差异，显著高于其他 3 类品种。 关键词：玉米；品种；耐淹性；形态指标；光合 中图分类号：S513 文献标识码：A 文章编号：1672−352X (2014)04−0533−07 Screening for cultivars with water-logging resistance through analyzing morphological indexes and photosynthetic characteristics in maize 1 1 2 1 1 1 3 WANG Chengyu , SONG He , HU Linghui , LI Jincai , XIAO Weiwei , LIU Guoyong , CHENG Beijiu (1. School of Agronomy, Anhui Agricultural University, Hefei 230036; 2. Fu’nan County Agricultural Science Research Institute, Fuyang 236300; 3. School of Life Science, Anhui Agricultural University, Hefei 230036) Abstract: Sixteen maize cultivars widely planted in China were compared for their water-logging resistance and photosynthetic physiology under field conditions. The results showed that 1000-grain weight increased but the yield and grain number per spike reduced after water-logging. According to the relation between yield and relative injury rate in maize, 16 maize cultivars could be classified into 4 groups: group 1 with hi