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在磷浓度为0.01～1mmol/L范围内黄瓜幼苗的主根伸长速率和分枝区伸长速率都随磷浓度的增加而增加。磷供给浓度在0.01～0.5mmol/L范围内黄瓜幼苗的侧根形成速率和叶片伸展速率随磷浓度的增加而增加;磷供给浓度在0.5～1mmol/L范围内磷胁迫降低了黄瓜幼苗的侧根形成速率和叶片伸展速率,使其增长速率大幅度下降。在磷浓度为0.01～1mmol/L范围内黄瓜幼苗叶片的净光合速率随浓度的增加而增加。黄瓜幼苗的总生物量随供给磷浓度增加而增加,根冠比则随磷供给浓度的增加而下降。
In the range of 0.01 ~ 1mmol / L, the main root elongation rate and branch zone elongation of cucumber seedlings increased with the increase of phosphorus concentration. In the range of 0.01 ~ 0.5mmol / L, phosphorus supply increased the lateral root formation rate and leaf extension rate of cucumber seedlings with the increase of phosphorus concentration. Phosphorus stress decreased the lateral root formation of cucumber seedling in the range of 0.5 ~ 1mmol / L Rate and blade extension rate, the growth rate dropped significantly. The net photosynthetic rate of cucumber seedling leaves increased with the increase of concentration in the range of 0.01 ~ 1 mmol / L phosphorus concentration. The total biomass of cucumber seedlings increased with the increase of phosphorus supply, but the root / shoot ratio decreased with the increase of phosphorus supply.