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Responses of Acacia Mangium Seedlings to Different Irradiances

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Photosynthetica

Abstract

The photosynthetic and growth responses of A. mangium to different photosynthetic photon flux density (PPFD) during early seedling establishment (36 d after sowing) were investigated. Shade-grown A. mangium seedlings exhibited lower chlorophyll (Chl) a/b ratio, higher Chl and carotenoid (Car) contents, and higher total Chl/Car ratio than sun-grown seedlings. Sun-grown seedlings showed significantly higher photosynthetic capacity and total plant dry mass. High PPFD was crucial for the successful early establishment and robust growth of A. mangium seedlings.

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Authors and Affiliations

  1. Department of Biological Sciences, National University of Singapore, Lower Kent Ridge Road, Singapore, 119260, Republic of Singapore

    Hua Yu & Bee-Lian Ong

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  1. Hua Yu
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  2. Bee-Lian Ong
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Yu, H., Ong, BL. Responses of Acacia Mangium Seedlings to Different Irradiances. Photosynthetica 39, 477–479 (2001). https://doi.org/10.1023/A:1015159100276

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