不同小麦品种的分蘖数、叶片数、干物量与根系总吸收面积及活跃吸收面积呈正相关 ,在低磷处理的相关性均达到显著水平。此外 ,各品种在收获期的干物量及籽粒产量亦与植株吸磷量及利用效率呈正相关。通过各因素的比较 ,鉴定出在低磷条件下可获较高产量的品种。 The tiller number, the number of leaves and dry matter of different wheat cultivars were positively correlated with the total root absorption area and active absorption area, and reached the significant level in low phosphorus treatments. In addition, the dry matter yield and grain yield of various cultivars at harvest were also positively correlated with the phosphorus uptake and utilization efficiency of plants. Through the comparison of the various factors, it was identified that higher yield could be obtained under low phosphorus conditions.