种植密度和施氮量对优质常规稻桂育12产量和米质的影响

李虎, 黄秋要, 吴子帅, 刘广林, 陈传华, 罗群昌, 朱其南

Effects of Planting Density and Nitrogen Application Rate on Yield and Rice Quality of High-Quality Conventional Rice Guiyu 12

Li Hu, Huang Qiuyao, Wu Zishuai, Liu Guanglin, Chen Chuanhua, Luo Qunchang, Zhu Qinan

表4 种植密度和施氮量对桂育12晚稻米质的影响

Table 4 Effects of planting density and nitrogen application rate on rice quality of late rice of Guiyu 12

处理 Treatment 糙米率 Brown rice rate (%) 精米率 Milled rice rate (%) 粒长 Grain length (mm) 粒宽 Grain width (mm) 长宽比 Length- width ratio 垩白度 Chalkiness degree (%) 垩白粒率 Chalkiness rate (%) 透明度 Transparency 蛋白质含量 Protein content (%) 直链淀粉含量 Amylose content (%) A1 76.22a 64.11a 6.20bB 1.77a 3.52bB 0.48bB 2.49bB 1.00bB 8.01a 15.41a A2 77.71a 65.36a 6.29aAB 1.77a 3.56aAB 0.60aAB 3.11aAB 1.00bB 8.06a 15.39a A3 77.22a 65.44a 6.33aA 1.78a 3.57aA 0.63aA 3.56aA 1.56aA 8.28a 14.71a B1 76.58a 64.71a 6.29bA 1.77a 3.56aA 0.49a 2.61a 1.00bB 8.12a 15.21a B2 77.18a 64.96a 6.20cB 1.77a 3.52bB 0.54a 3.03a 1.22aAB 8.19a 14.79a B3 77.39a 65.23a 6.33aA 1.78a 3.57aA 0.67a 3.52a 1.33aA 8.03a 15.51a A1B1 75.84a 63.84a 6.11cB 1.77a 3.46bB 0.58a 2.74a 1.00a 8.03a 15.33a A1B2 76.37a 64.14a 6.20bA 1.77a 3.53aA 0.31a 1.92a 1.00a 8.10a 15.27a A1B3 76.45a 64.34a 6.29aA 1.77a 3.56aA 0.55a 2.82a 1.00a 7.90a 15.63a A2B1 77.14a 65.70a 6.40aA 1.77a 3.62aA 0.48a 2.61a 1.00a 8.13a 15.53ab A2B2 78.47a 65.53a 6.17cB 1.77a 3.49cB 0.66a 3.19a 1.00a 8.17a 14.47b A2B3 77.52a 64.87a 6.29bA 1.77a 3.56bA 0.65a 3.53a 1.00a 7.87b 16.17a A3B1 76.75a 64.59a 6.35aA 1.77bB 3.61aA 0.42a 2.49b 1.00bB 8.20a 14.77a A3B2 76.69a 65.22a 6.23bB 1.77bAB 3.53bB 0.65a 3.97ab 1.67aA 8.30a 14.63a A3B3 78.22a 66.49a 6.41aA 1.80aA 3.58aAB 0.82a 4.20a 2.00aA 8.33a 14.73a A 1.88 1.55 25.41** 0.70 18.59** 14.22* 16.25* 25.00** 0.88 1.37 B 0.55 0.13 19.09** 2.47 10.37** 1.11 2.12 7.00** 2.35 1.66 A×B 0.40 0.31 11.72** 1.88 11.89** 1.03 1.23 7.00** 1.54 0.81