2007•Acta Agriculturae Boreali-SinicaRequires access
Effect of Photosynthetic Characteristic of Wheat Under Different Fertilization
Jianlin Wang, Fang Quanxiao, Juhua Li, Tang Hai-qin
Open publisher page 0 citations
Abstract
In order to reveal the effect of fertilization to photosynthetic rate,and increase the photosynthetic productivity of wheat,we took the wheat variety Lainong 0245 as the object of study.The response characteristics of photosynthetic rate,transpiration rate,stomatal conductance and water use efficiency to light intensity were researched and analyzed during the filling-grain period of flag leaves.It indicated that under normal fertilization conditions,photosynthetic rate,transpiration rate,stomatal conductance and water use efficiency all gradually increased with the light intensity enhancement.Under no fertilization condition,transpiration rate and stomatal conductance gradually increased with the light intensity enhancement.Yet,when light intensity exceeded 1 200 μmol/(m2·s), it was appeared photoinhibition,photosynthetic rate and water use efficiency decreased.Photosynthetic rate,transpiration rate,stomatal conductance under normal fertilization was higher than those under no fertilization.So,fertilization would remarkably improve photosynthesis of the wheat.