适宜机械粒收玉米品种的熟期评价指标

李璐璐, 明博, 初振东, 张万旭, 高尚, 王浥州, 侯梁宇, 周先林, 谢瑞芝, 王克如, 侯鹏, 李少昆

An growing-period indicator of maize cultivars for mechanical kernel harvest

LI Lu-Lu, MING Bo, CHU Zhen-Dong, ZHANG Wan-Xu, GAO Shang, WANG Yi-Zhou, HOU Liang-Yu, ZHOU Xian-Lin, XIE Rui-Zhi, WANG Ke-Ru, HOU Peng, LI Shao-Kun

图2 先玉335和郑单958播种至生理成熟、播种至25%含水率和生理成熟至25%含水率的积温 *、**和***分别表示在0.05、0.01和0.001水平差异显著; 箱形图中箱体部分代表50%样本的分布区域, 即四分位区间(IQR)。两端线为Tukey法判定的合理观测样本边界。箱体中实线为样本中位数, •为异常值点, +为样本均值。

Fig. 2 Thermal times of the planting-maturity, the planting-25% moisture, and the maturity-25% moisture for hybrids Xianyu 335 and Zhengdan 958 *, **, and *** indicate significantly different at the 0.05, 0.01, and 0.001 probability levels, respectively. The box represents the inter-quartile range (IQR), containing the middle 50% of samples in the Box-whisker plot (from the lower quartile to the upper quartile). The whiskers are drawn according to the Tukey method, extending to the data point that is the closest to 1.5 times the IQR below the lower quartile and above the upper quartile. The solid lines in the box denote the sample medians. • stands for outliers more than 1.5 times below or above the 1st or 3rd quartiles. + represents the sample mean.