干旱地区农业研究2013，Vol.31Issue(1)：183-187,5.
低温胁迫下春玉米生长参数及产量影响分析
Analysis of growth parameters and yield of spring maize under chilling stress
摘要
Abstract
Using Xianyu335 as material, the experiment was carried out to analyze the influence of chilling stress (15℃) at jointing stage and bell-mouthed stage on growth parameters and yield of spring maize. The results showed that chilling stress led to the significant reduction of plant height, plant biomass and leaf area, and the influence of chilling stress at jointing stage was more serious than that at bell - mouthed stage. The photosynthetic rate and transpiration rate decreased significantly under chilling stress, by around 10% and 58% -64% respectively. The response characteristics of canopy spectral reflectance to chilling stress at different developmental stages were the same on the whole. In visible band, the canopy spectral reflectance under chilling stress was increased, while in near-infrared band (780 ~ 1 350 ran), it was decreased obviously. The yield of spring maize under chilling stress at jointing stage was reduced by 34% and that at bell-mouthed stage was reduced by 38% . Therefore, the influence of chilling stress at bell-mouthed stage was more remarkable than that at jointing stage.关键词
低温胁迫/春玉米/生长参数/产量Key words
chilling stress/ spring maize/ growth parameters/ yield分类
农业科技引用本文复制引用
冯锐,武晋雯,纪瑞鹏,张玉书,王连敏,王宏博,于文颖..低温胁迫下春玉米生长参数及产量影响分析[J].干旱地区农业研究,2013,31(1):183-187,5.基金项目
科技部公益性行业科研专项(GYHY201106027) （GYHY201106027）
科技部农业科技成果转化资金项目(2011GB24160001)和辽宁省"十二五"科学技术重大项目(2011210002) （2011GB24160001）
