秧龄对浙东南地区优质稻产量和品质的影响

马义虎, 何贤彪, 陈剑, 汤学军, 王旭辉, 何豪豪, 金羽清, 齐文, 蒋海凌, 周翠

Effects of Seedling Ages on Grain Yield and Quality of High Quality Rice in Southeastern Zhejiang Province

Ma Yihu, He Xianbiao, Chen Jian, Tang Xuejun, Wang Xuhui, He Haohao, Jin Yuqing, Qi Wen, Jiang Hailing, Zhou Cui

表6 不同秧龄下优质稻的干物质积累与收获指数

Table 6 Dry matter accumulation and harvest index of high quality rice under different seedling ages

品种 Variety 秧龄处理 Seedling age treatment (d) 播种―齐穗期S-F 齐穗―成熟期F-M 成熟期Maturity 干物质 转运量 DMTA (t/hm2) 茎叶 输出率 OPDMSL (%) 收获 指数 Harvest index 积累量 DMA (t/hm2) 群体生长率 PGR [kg/(hm2·d)] 积累量 DMA (t/hm2) 群体生长率 PGR [kg/(hm2·d)] 稻谷干重 DWOGY (t/hm2) 稻草干重 DWORS (t/hm2) 总积累量 TDMA (t/hm2) 群体生长率 PGR [kg/(hm2·d)] 甬优1540 Yongyou 1540 15 11.74a 119.80a 6.81c 144.81b 9.18b 9.36a 18.55b 127.90a 2.38a 20.25a 0.495d 21 11.43b 114.26b 7.21b 150.26ab 9.57ab 9.06b 18.64ab 125.94ab 2.36ab 20.67a 0.514b 27 11.10c 109.92c 7.64a 152.88a 9.82a 8.93b 18.75a 124.15b 2.17bc 19.57b 0.524a 33 10.73d 103.17d 7.19b 143.71b 9.28b 8.64c 17.92c 116.33c 2.09c 19.52b 0.518b 39 10.39e 97.98e 6.72c 131.78c 8.69c 8.41d 17.11d 108.96d 1.97c 18.99c 0.508c 平均值 11.08 109.03 7.11 144.69 9.31 8.88 18.19 120.66 2.19 19.80 0.512 CV (%) 4.9 8.0 5.2 5.6 4.6 4.2 3.8 6.5 8.0 3.3 2.2 泰两优217 Tailiangyou 217 15 10.94a 115.11a 5.65bc 128.39a 8.10b 8.49a 16.58a 119.31a 2.45a 22.39c 0.488c 21 10.52b 107.37b 6.09a 129.68a 8.48a 8.14b 16.62a 114.60b 2.39ab 22.67b 0.510a 27 10.31bc 102.10c 5.83b 118.98b 8.19b 7.95bc 16.14b 107.61c 2.36b 22.88a 0.507a 33 10.19c 97.00d 5.60bc 109.75c 7.86c 7.92c 15.78c 101.17d 2.26c 22.22c 0.498b 39 9.92d 91.03e 5.52c 106.12c 7.58d 7.86c 15.44d 95.90e 2.06d 20.79d 0.491c 平均值 10.38 102.52 5.74 118.58 8.04 8.07 16.11 107.72 2.30 22.19 0.499 CV (%) 3.7 9.1 4.0 9.0 4.2 3.2 3.2 8.9 6.6 3.7 1.9