氮肥运筹对湘南双季杂交稻生长发育与稻米品质的影响

袁帅, 苏雨婷, 陈平平, 易镇邪

Effects of Nitrogen Management on Yield Formation and Rice Quality of Double Cropping Hybrid Rice in Southern Hunan

Yuan Shuai, Su Yuting, Chen Pingping, Yi Zhenxie

表8 氮肥运筹对稻米淀粉RVA谱特征值的影响

Table 8 Effects of nitrogen fertilizer management on rice starch RVA spectrum characteristic values

季别 Season 品种 Variety 处理 Treatment 峰值黏度 Peak viscosity (cP) 热浆黏度 Hot viscosity (cP) 崩解值 Breakdown value (cP) 最终黏度 Final viscosity (cP) 消减值 Setback (cP) 峰值时间 Peak time (min) 糊化温度 Gelatinization temperature (℃) 早稻Early rice 株两优819 N1 2389.3a 1679.7a 776.3a 2859.3a 390.0b 6.50b 86.35b N2 2247.0a 1529.5ab 717.5ab 2777.5a 430.5a 6.54b 89.43a N3 2097.3b 1480.7b 616.7c 2543.3b 446.0a 7.00a 90.52a 陆两优996 N1 2224.0a 1692.7a 681.3a 2575.7a 387.5b 6.56a 89.07a N2 2205.5a 1640.0ab 656.0a 2548.3a 406.3b 6.73a 89.97a N3 2112.5b 1576.0b 513.3b 2511.0a 460.0a 6.82a 89.85a 晚稻Late rice 盛泰优018 N1 3412.3a 2233.3a 1379.0a 3324.3a -147.5ab 6.11a 78.17a N2 3343.3a 2138.3b 1105.0ab 3115.0ab -162.5b 6.42a 78.10a N3 2790.7b 1820.3b 970.3c 2795.7b -124.0a 6.20a 78.40a H优518 N1 3527.3a 2385.0a 1342.3a 3565.7a -305.0b 6.38a 78.37a N2 3406.5a 2211.0a 1216.5a 3343.0a -320.0b 6.20a 78.38a N3 2947.0b 1905.0b 818.0b 2766.0b -167.3a 6.29a 78.73a