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１９９４～１９９７年田间连续测定表明，春型杂种小麦品种“９０１”的光合特性明显不同于常规小麦品种陕２２９和小偃６号。杂种小麦的叶源量大，功能期长，衰老缓慢，顶三叶的净光合速率差异小。从抽穗期到灌浆末期，杂种小麦的旗叶、倒二叶和倒三叶的净光合速率变幅分别为９．６６～１７．８２，９．６６～１７．６８和４．６１～１２．３７μｍｏｌ／（ｍ２·ｓ），平均值分别为１３．６１，１３．７４和９．０１μｍｏｌ／（ｍ２·ｓ）；越到生育后期，杂种小麦的光合优势越明显。蒸腾作用和气孔传导等也有类似趋势。
The continuous field measurements from 1994 to 1997 showed that the photosynthetic characteristics of spring hybrid wheat variety “901” were significantly different from those of conventional wheat varieties Shaan 229 and Xiaoyan 6. Hybrid wheat had large amount of leaf source, long functional period, slow aging, and slight difference in net photosynthetic rate of top clover. The net photosynthetic rate of flag leaf, inverted leaf and inverted leaf of hybrid wheat varied from 9.66 to 17.82, 9.66 to 17.68 and 4.61 to 12 respectively from heading stage to the late filling stage. 37μmol / (m2 · s), with the average values of 13.61, 13.74 and 9.01μmol / (m2 · s), respectively. Transpiration and stomatal conductance also have similar trends.