核农学报2011，Vol.25Issue(2)：353-357,396,6.
气象因子对河南省夏玉米产量与品质的影响
EFFECTS OF CLIMATIC FACTORS ON GRAIN YIELD AND QUALITY OF SUMMER CORN IN HENAN PROVINCE
摘要
Abstract
Experiments with maize cultivar ZD958, XD20 and DH662 planting on farmland of four ecological area( YS, YE, YM and YN mean area in south part, east part, middle part and north part) in Henan province) were conducted to study the effects of climatic factors on grain yield and quality of summer maize, during 2007 and 2008. Results showed that, the order of average grain yield of maize of two years was YN ＞ YE ＞ YM ＞ YS. Among them, the average grain yield of maize in YN was 708.5kg/667m2, which was much higher than that in the other ecological areas. Among four ecological area, the contents of crude starch, crude fat and lysine of grain in YE, crude protein in YN were higher, while crude protein, crude fat and lysine in YM were lower. The grain yield had positive correlation with illumination hours during the whole growth stage and illumination hours per day after silking ( r = 0. 97 and 0. 92 respectively), and had a negatively correlated relationship with total rainfall during the whole growth stage ( r = - 0. 88). The crude protein content had positively correlated relationships with illumination hours during the whole growth stage, illumination hours after silking and illumination hours per day after silking (r = 0. 76, 0. 85 and 0. 88, respectively), while the contents of crude starch, crude fat and lysine of grain had no significant correlation with climatic factors. Test showed that,sufficient illumination, illumination hours after silking and illumination hours per day after silking were the favorable factors of high-yield, high-quality grain in YN; rainfall more limited yield formation in YS; higher accumulated temperature, accumulated temperature after silking and accumulated temperature per day after silking were against crude starch, crude fat and lysine formation accumulation in YM; the air humidity higher in YE, was helpful for crude starch,crude fat and lysine formation accumulation.关键词
气象因素/玉米产量/籽粒品质Key words
climatic factor/ maize yield/ grain quality引用本文复制引用
段鹏飞,刘天学,赵春玲,张学林,李潮海..气象因子对河南省夏玉米产量与品质的影响[J].核农学报,2011,25(2):353-357,396,6.基金项目
河南省重大科技专项(081100110400),公益性行业(气象)科研专项(GYHY201006041),河南省重大科技攻关计划(102101110300) （081100110400）
