年际气象差异对西南丘陵区玉米物质积累与产量的影响
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李强, 孔凡磊, 袁继超
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Effects of Interannual Meteorological Factors on Maize Dry Matter Accumulation and Yield in the Hilly Area of Southwest China
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Li Qiang, Kong Fanlei, Yuan Jichao
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表3 气象因子与玉米干物质积累和产量的相关系数
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Table 3 Correlation coefficients of dry matter accumulation and yield of maize with meteorological factors
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| 指标Index | 降水量Precipitation (mm) | 积温Accumulated temperature (℃) | 日照时数Sunshine hours (h) | | WGP | SS | SM | WGP | SS | SM | WGP | SS | SM | | 株高Plant height (cm) | -0.173 | -0.494 | - | -0.774 | -0.730 | - | -0.791 | 0.453 | - | | 叶面积指数Leaf area index | -0.203 | -0.705 | - | -0.677 | -0.883* | - | -0.612 | 0.331 | - | | 花前物质积累DMA (t/hm2) | 0.208 | -0.590 | - | -0.782 | -0.941** | - | -0.589 | 0.466 | - | | 花后物质积累PDMA (t/hm2) | -0.246 | -0.714 | -0.637 | -0.683 | -0.587 | -0.267 | -0.617 | 0.203 | -0.716 | | 生物量Biomass (t/hm2) | -0.051 | -0.710 | -0.447 | -0.787 | -0.848* | -0.114 | -0.652 | 0.337 | -0.668 | | 花前物质转运量DMT (t/hm2) | 0.062 | -0.901* | 0.564 | -0.353 | -0.828* | 0.762 | -0.125 | 0.244 | -0.002 | | 花后物质同化量PDMT (t/hm2) | -0.145 | -0.630 | -0.493 | -0.774 | -0.836* | -0.091 | -0.729 | 0.372 | -0.751 | | 花前物质转运率DMTE (%) | -0.003 | -0.911* | 0.508 | -0.519 | -0.858* | 0.579 | -0.107 | 0.017 | -0.162 | | 花前转运贡献率CAG (%) | 0.116 | -0.895* | 0.614 | -0.524 | -0.919** | 0.617 | -0.176 | 0.022 | -0.262 | | 花后同化贡献率CPAG (%) | -0.116 | -0.895* | -0.614 | -0.524 | -0.919** | -0.617 | -0.176 | -0.022 | -0.262 | | 穗长Ear length (cm) | -0.239 | -0.289 | -0.392 | -0.777 | -0.627 | 0.169 | -0.877* | 0.374 | -0.955** | | 穗粗Ear diameter (cm) | -0.338 | -0.191 | -0.218 | -0.575 | -0.225 | 0.284 | -0.670 | 0.039 | -0.908* | | 穗粒数Kernel number per ear | -0.148 | -0.597 | -0.478 | -0.791 | -0.821* | -0.047 | -0.755 | 0.363 | -0.793 | | 千粒重1000-kernel weight (g) | -0.026 | -0.238 | -0.769 | -0.724 | -0.452 | -0.562 | -0.426 | -0.216 | -0.751 | | 产量Yield (kg/hm2) | -0.104 | -0.513 | -0.688 | -0.820* | -0.740 | -0.779 | -0.806* | 0.409 | -0.831* | | 平均绝对值Average of absolute value | 0.145 | -0.618 | 0.535 | -0.672 | -0.748 | 0.407 | -0.541 | 0.258 | -0.588 |
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