不同施氮水平对黑土区糯玉米灌浆期碳代谢的影响

侯楠, 吴凤婕, 齐翔鲲, 王玉凤, 杨克军, 付健

Effects of Different Nitrogen Application Levels on Carbon Metabolism of Waxy Maize during Filling Period in Black Soil Area

Hou Nan, Wu Fengjie, Qi Xiangkun, Wang Yufeng, Yang Kejun, Fu Jian

表2 不同施氮水平对糯玉米籽粒灌浆参数的影响

Table 2 Effects of different nitrogen application levels on grain filling parameters of waxy maize

品种 Variety 处理 Treatment 生长曲线方程 Growth curve parametric equation Tmax (d) Wmax (g·100-grain) Gmax [(g·100-grain)/d] P (d) R 产量 Yield (kg/hm2) 金糯262 Jinnuo 262 N0 y=25.68/(1+75e-0.19t) 22.73 12.84 1.22 31.58 0.9987 8884.1±785.8c N1 y=30.09/(1+97e-0.19t) 24.10 15.05 1.43 31.58 0.9967 12 392.8±324.6a N2 y=26.18/(1+27e-0.15t) 21.95 13.09 0.98 40.00 0.9988 10 663.6±520.3b N3 y=26.39/(1+76e-0.19t) 23.37 13.19 1.22 32.43 0.9973 10 958.4±728.2b 京科糯2000 Jingkenuo 2000 N0 y=25.82/(1+21e-0.11t) 26.74 12.91 0.73 52.90 0.9988 7412.9±836.0c N1 y=28.94/(1+29e-0.12t) 28.29 14.47 0.86 50.58 0.9947 9908.9±135.4b N2 y=29.05/(1+38e-0.14t) 26.50 14.53 1.00 43.65 0.9992 11 980.7±917.4a N3 y=33.42/(1+22e-0.11t) 29.15 16.71 0.89 56.23 0.9904 9439.1±574.3b