抽穗开花期喷施MeJA对粳稻产量和品质的影响

杨宇尘, 杜志敏, 张小鹏, 李坤译, 沈家琪, 徐海

Effects of Spraying Methyl Jasmonate on Yield and Grain Quality of Japonica Rice during Heading and Flowering Stage

Yang Yuchen, Du Zhimin, Zhang Xiaopeng, Li Kunyi, Shen Jiaqi, Xu Hai

表1 不同浓度MeJA处理对4个粳稻品种穗部性状的调控效果

Table 1 Differences of regulation effects of different concentrations of MeJA on panicle traits of four japonica rice cultivars

品种 Cultivar MeJA浓度 MeJA concentration (mmol/L) 穗长 Panicle length (cm) 一次枝梗数 Primary branch number 二次枝梗数 Secondary branch number 一次枝梗结实率 Primary branch seed-setting rate (%) 二次枝梗结实率 Secondary branch seed-setting rate (%) 着粒密度 (粒/10cm) Spikelet density (grain/10cm) 穗型指数 Panicle trait index 北粳1号 0(CK) 18.98aA 13.70bA 26.00aA 94.17aA 92.93aA 86.91aA 0.39abA Beijing 1 4 19.04aA 14.47abA 27.63aA 92.87aA 69.27bB 85.70aA 0.36bA 8 18.94aA 14.30abA 28.80aA 86.13abA 57.73bcBC 83.85aA 0.42aA 16 19.47aA 14.73aA 29.33aA 76.30bA 41.87cC 80.70aA 0.41aA 沈稻6号 0(CK) 18.22aA 13.07aA 23.57aA 92.90aA 90.57aA 78.86aA 0.41aA Shendao 6 4 18.57aA 13.37aA 22.53aA 76.80bA 58.17bB 76.56aA 0.41aA 8 17.62aA 12.67aA 21.57aA 76.37bA 52.93bcB 74.98aA 0.41aA 16 17.83aA 13.10aA 21.60aA 56.03cB 36.97cB 74.88aA 0.41aA 辽粳9号 0(CK) 20.18aA 13.60bA 36.17bA 92.63aA 91.53aA 100.79aA 0.41aA Liaojing 9 4 19.85aA 13.77abA 37.23abA 77.10bAB 49.13bB 100.77aA 0.40aA 8 20.07aA 14.30abA 38.83abA 61.53cBC 28.23cBC 97.47aA 0.40aA 16 20.60aA 14.50aA 40.03aA 47.67dC 22.37cC 94.91aA 0.40aA 丰锦 0(CK) 21.11aA 11.17aA 16.83aA 93.10aA 85.67aA 54.63aA 0.40aA Fengjin 4 20.75aA 11.10aA 17.00aA 61.87bB 48.43bB 54.41aA 0.41aA 8 20.16aA 10.73aA 16.80aA 40.17cC 24.03cC 53.88aA 0.41aA 16 20.89aA 10.97aA 18.67aA 25.80dC 14.40cC 51.48aA 0.41aA