Morphological and biomass characteristic acclimation of trident maple (Acer buergerianum Miq.) in response to light and water stress

• Autorzy: Guo X , Guo W. , Luo Y. , Tan X. , Du N. , Wang R.
• Języki publikacji: EN

Abstrakty

EN

Acer buergerianum Miq. (Trident maple) is a native species of China with a large distribution, but exist in small population. Water and light are two important factors limiting plant growth and are crucial in the framework of forest regeneration. However, there is no consensus on how shade interacts with drought. Four hypotheses in the recent literature variously predict that shade will have a stronger, weaker or equal impact on seedlings under drought stress. This study investigated the interactive responses of A. buergerianum to light and water focusing on seedling growth, leaf morphology and biomass partitioning by performing a growth experiment in pots with different water supply regimes [15, 35, 55, 75, 95 % of field capacity (FC)] combined with two light regimes (10 and 66 % of full sunlight). After 123 days treatment, the results showed that shade greatly reduced growth and biomass, in contrast enhancing the amount of chlorophyll, the amount of water in the leaves, and the specific leaf area. Drought reduced growth, biomass, and the bulk of the leaves. Most leaf traits and biomass characteristics had strong interactions in their responses to light and water treatments. Allometric analysis revealed that water and light had no effects on root to shoot ratios, main root to lateral root ratios, and root mass ratios. Shade alleviated the negative impact of drought. A. buergerianum successfully adapted to the various light and water conditions. We recommend a water supply above 15 % FC to keep the seedlings vigorous, under both sunlight conditions.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2013
• Tom: 35
• Numer: 04
• Opis fizyczny: p.1149-1159,fig.,ref.

Twórcy

autor

Guo X

• Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Jinan 250100, People’s Republic of China
• Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Jinan 250100, People’s Republic of China

autor

Guo W.

• Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Jinan 250100, People’s Republic of China
• Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Jinan 250100, People’s Republic of China

autor

Luo Y.

• Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Jinan 250100, People’s Republic of China
• Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Jinan 250100, People’s Republic of China

autor

Tan X.

• Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Jinan 250100, People’s Republic of China
• Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Jinan 250100, People’s Republic of China

autor

Du N.

• Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Jinan 250100, People’s Republic of China
• Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Jinan 250100, People’s Republic of China
• Environment Research Institute, Shandong University, Jinan 250100, People’s Republic of China

autor

Wang R.

• Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Jinan 250100, People’s Republic of China
• Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Jinan 250100, People’s Republic of China
• Environment Research Institute, Shandong University, Jinan 250100, People’s Republic of China

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