The influence N and P supply on the short-term responses to elevated CO2 in faba bean (Vicia faba L)

文献类型： 外文期刊

第一作者： Jia, Y. S.

作者： Jia, Y. S.;Gray, V. M.

作者机构：

关键词： carbon dioxide;light-saturated photosynthetic rates (P-max);nitrogen;phosphorus;quantum efficiency (alpha)

期刊名称：SOUTH AFRICAN JOURNAL OF BOTANY （ 影响因子：2.315； 五年影响因子：2.71 ）

ISSN： 0254-6299

年卷期： 2007 年 73 卷 3 期

页码：

收录情况： SCI

摘要： In this study the effects of the inorganic nutrients carbon dioxide, nitrogen and phosphorus on light-saturated photosynthetic rates (P..) and quantum yield (a) were investigated in faba bean. Both P a and a increased asymptotically in response to increasing N supply. However the maximums that were achieved for the asymptotic P-max and a values in relation to N depended on both P and CO2 supply. Also, the short-term photosynthetic responses to the increasing concentrations Of CO2 were observed to be co-limited by both N and P supply. These findings support the proposal that the N:P supply ratio controls the plant's photosynthetic capacity in response to elevated CO2 concentrations. (c) 2007 SAAB. Published by Elsevier B.V. All fights reserved.

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