Effects of elevated temperature on growth and gas exchange in dominant plant species from Maowusu Sandland, China

Title:

Effects of elevated temperature on growth and gas exchange in dominant plant species from Maowusu Sandland, China

Creator:

Xiao, Chun-Wang, Zhou, Guang-Sheng, and Ceulemans, R.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:7958d562-7ffb-4482-851e-ea01520b7be7
uuid:7958d562-7ffb-4482-851e-ea01520b7be7
issn:0300-3604
doi:10.1023/B:PHOT.0000027521.86653.07

Subject:

biomass allocation, net photosynthetic rate, root, shoot ratio, transpiration rate, and water use efficiency

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

We compared the effect of elevated temperature on morphological development, biomass accumulation and allocation, and gas exchange of three dominant plants (Caragana intermedia Kuanget H.C. Fu, Hedysarum mongolicum Turcz., and Artemisia ordosica Krasch.) growing in Chinese Maowusu sandland. Plants were grown in two temperature chambers (25/20, 28/23 °C, day/night) during 60 d. Tree height, number of leaves, and leaf area were increased in C. intermedia and H. mongolicum seedlings, while in A. ordosica temperature only affected tree height. Elevated temperature increased biomass and reduced the root : shoot ratio in C. intermedia and H. mongolicum seedlings, but not in A. ordosica seedlings. The net photosynthetic rate (PN) and transpiration rate (E) were increased at days 40 and 60 in C. intermedia and H. mongolicum seedlings, while in A. ordosica seedlings no significant effects on E were observed, and PN was increased only at day 60. Water use efficiency (WUE) was reduced at days 40 and 60 in H. mongolicum seedlings, and at day 60 in C. intermedia seedlings. No temperature effect on WUE was observed in A. ordosica seedlings. These different responses indicate that climate change could alter plant communities in Maowusu sandland. and Chun-Wang Xiao, Guang-Sheng Zhou, R. Ceulemans.

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

565-569

Source:

Photosynthetica | 2003 Volume:41 | Number:4

Harvested from:

CDK

Metadata only:

false