化学调控和氮肥对高密度下春玉米光热水利用效率和产量的影响

刘笑鸣,顾万荣,李从锋,张立国,王明泉,龚士琛,陈喜昌,李彩凤,魏湜,李文华

Effects of Chemical Regulation and Nitrogen Fertilizer on Radiation, Heat and Water Utilization Efficiency and Yield of Spring Maize Under Dense Planting Condition

LIU XiaoMing,GU WanRong,LI CongFeng,ZHANG LiGuo,WANG MingQuan,GONG ShiChen,CHEN XiChang,LI CaiFeng,WEI Shi,LI WenHua

表3 籽粒灌浆速率与激素含量的相关性分析

Table 3 Correlation coefficients of grain filling rate with grain hormones content

年份 Year 项目 Item IAA CTK GA ABA 2017 花后10d灌浆速率 Grain filling rate on 10 d after anthesis 0.95** 0.90* 0.79 0.88* 花后15d灌浆速率 Grain filling rate on 15 d after anthesis 0.97** 0.92** 0.79 0.92** 花后20d灌浆速率 Grain filling rate on 20 d after anthesis 0.98** 0.89* 0.78 0.91* 花后25d灌浆速率 Grain filling rate on 25 d after anthesis 0.74 0.80 0.54 0.65 花后30d灌浆速率 Grain filling rate on 30 d after anthesis 0.54 0.46 0.30 0.46 2018 花后10d灌浆速率 Grain filling rate on 10 d after anthesis 0.83* 0.89* 0.95** 0.95** 花后15d灌浆速率 Grain filling rate on 15 d after anthesis 0.90* 0.97** 0.93** 0.91* 花后20d灌浆速率 Grain filling rate on 20 d after anthesis 0.92** 0.90* 0.91* 0.68 花后25d灌浆速率 Grain filling rate on 25 d after anthesis 0.88* 0.93** 0.70 0.89* 花后30d灌浆速率 Grain filling rate on 30 d after anthesis 0.81* 0.41 0.41 0.28