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2 秧龄对优质稻产量影响的回归方程

Table 2 Regression equation of effects of seedling ages on grain yield of high quality rice

品种 Variety Y=ax2+bx+c Ymean (t/hm2) Ymax (t/hm2) Ymean/Ymax (%) Y0.98对应秧龄 Seedling ages for Y0.98 (d) Ymax对应秧龄 Seedling ages for Ymax (d) a b c R2 甬优1540 Yongyou 1540 -0.0059 0.2701 8.3642 0.9824** 10.90 11.46 95.1 16.7~29.1 22.9 泰两优217 Tailiangyou 217 -0.0028 0.1045 8.6723 0.9689** 9.28 9.65 96.2 13.3~24.1 18.7