不同尿素类型及施用方式对滴灌冬小麦植株性状及产量构成的影响

李杰, 张永强, 雷钧杰, 吕晓庆, 陈传信, 徐其江, 聂石辉, 徐文修, 常旭虹

Effects of Different Urea Types and Application Methods on Plant Characteristics and Yield Composition of Winter Wheat under Drip Irrigation

Li Jie, Zhang Yongqiang, Lei Junjie, Lü Xiaoqing, Chen Chuanxin, Xu Qijiang, Nie Shihui, Xu Wenxiu, Chang Xuhong

图3 滴灌冬小麦农艺性状与产量指标间的相关关系 右偏椭圆表示呈正相关性，左偏椭圆表示呈负相关性。圆度越小，颜色越深，则相关性越强；圆度越大，颜色越浅，则相关性越低。Y：产量；PH：株高；SL：穗长；ES：有效穗数；GPS：穗粒数；TGW：千粒重；FS：可孕小穗数；SS：不孕小穗数。“*”和“**”分别表示P < 0.05和P < 0.01水平显著相关。

Fig.3 Correlation between agronomic traits and yield indexes of drip-irrigated winter wheat Right-biased ellipse indicates the positive correlation, left-biased ellipse indicates the negative correlation. The smaller the roundness and the darker the color, the stronger the correlation; the larger the roundness and the lighter the color, the lower the correlation. Y: yield; PH: plant height; SL: spike length; ES: effective spikes; GPS: grains per spike; TGW: 1000-grain weight; FS: fertile spikelets; SS: sterile spikelets.“*”and“**”indicate significant correlations at the P < 0.05 and P < 0.01 levels, respectively.