---

作 者 ：李继云 孙建华

期 刊 ：西北植物学报 2000年 4期

关键词：根系生理；磷吸收效率；利用效率；小麦；品种；产量；

Keywords:physiological activity of root system, uptake efficiency, utilization efficiency,

摘 要 ：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。此各品种收获得期的干物量及籽粒产量亦与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。

Abstract:In the experiment using wheat cultivars,plant tiller,leaf numbers and biomass were found to be in a significantly positive correlation to the total absorbing area and active absorbing area of their root systems as treated at a lower level of phosphorus,as

---