黄淮海区域现代夏玉米品种产量与养分吸收规律
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程乙,刘鹏,刘玉文,庞尚水,董树亭,张吉旺,赵斌,任佰朝
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Regulation of grain yield and nutrient absorption of modern summer maize varieties in the Yellow-Huaihe-Haihe Rivers region
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Yi CHENG,Peng LIU,Yu-Wen LIU,Shang-Shui PANG,Shu-Ting DONG,Ji-Wang ZHANG,Bin ZHAO,Bai-Zhao REN
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表4 产量相关性状与磷素吸收相关参数的相关系数
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Table 4 Correlation coefficient between yield-related traits and P absorption parameters
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| 籽粒产量 Grain yield | 生物量 Biomass | 收获指数 Harvest index | 地上部吸磷量Aboveground P uptake | 每生产100 kg 籽粒磷素需求量 P requirement per 100 kg grain | 茎秆磷浓度 Stem P concentration | 叶片磷浓度 Leaf P concentration | 生物量 Biomass | 0.855** | | | | | | | 收获指数 Harvest index | 0.508** | -0.007 | | | | | | 地上部吸磷量 Aboveground P uptake | 0.667** | 0.839** | -0.108* | | | | | 每生产100 kg籽粒磷素需求量 P requirement per 100 kg grain | -0.396** | -0.013 | -0.752** | 0.412** | | | | 茎秆磷浓度 Stem P concentration | -0.068 | -0.001 | -0.134** | 0.331** | 0.488** | | | 叶片磷浓度 Leaf P concentration | -0.030 | -0.001 | -0.060 | 0.238** | 0.325** | 0.188** | | 籽粒磷浓度 Grain P concentration | -0.120* | -0.036 | -0.184** | 0.415** | 0.673** | 0.173** | 0.134** |
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