通过对不同磷效率类型品种 (系 )性状表现的方差分析 ,阐明了春小麦磷高效品种的性状特征。当受到同一缺磷胁迫时 ,耐缺磷的品种具有较高的穗分化和结实能力 ,品种耐缺磷能力越强 ,对加磷反应越不敏感 ;品种的磷利用效率同耐缺磷能力和对加磷反应敏感性无关。具有发达根系的品种吸磷能力强、耐缺磷程度高 Through the variance analysis of the traits of different phosphorus efficiency varieties (lines), the characteristics of spring wheat phosphorus efficient varieties were clarified. When subjected to the same phosphorus deficiency stress, the varieties tolerant to phosphorus deficiency had higher ear differentiation and fruiting ability. The stronger the ability of phosphorus tolerant to phosphorus deficiency, the less sensitive to the phosphorus addition reaction. The phosphorus use efficiency of cultivars was similar to that of phosphorus tolerant and Sensitivity to add phosphorus reaction has nothing to do. The cultivars with developed root system have strong ability of absorbing phosphorus and high resistance to phosphorus deficiency