Đăng nhập
Tìm kiếm nâng cao
Tên bài báo
Tác giả
Năm xuất bản
Tóm tắt
Lĩnh vực
Phân loại
Số tạp chí

Bản tin định kỳ
Báo cáo thường niên
Tạp chí khoa học ĐHCT
Tạp chí tiếng anh ĐHCT
Tạp chí trong nước
Tạp chí quốc tế
Kỷ yếu HN trong nước
Kỷ yếu HN quốc tế
Book chapter
Tạp chí quốc tế 2012
Số tạp chí 5:pls051(2012) Trang: 1-13
Tạp chí: AoB PLANTS

The aboveground growth, physiological and biochemical parameters of two clones of the cosmopolitan wetland grass Phragmites australis, grown at four treatment combinations of temperature and CO2, were investigated to elucidate whether their climate response differed due to inherent differences in their ecological adaptation. The two phylogeographically distinct P. australis clones (DK clone, European genetic background; ALG clone, Mediterranean genetic background) were grown for 151 days in phytotrons at 19/12 8C (day/night temperature) and 390 ppm CO2, and at elevated temperature (+5 8C) and CO2 (700 ppm) with treatment factors alone or in combination. The ALG clone had 2?4 times higher aboveground biomass, higher light-saturated rates of photosynthesis (Pmax), maximum electron transport rates (ETRmax) and Rubisco activity, and higher photosynthetic nitrogen-use efficiency than the DK clone. The DK clone, however, produced more shoots, leaves and sideshoots, and had 9?51 % higher specific leaf area and 15?39 % higher leaf nitrogen concentration than the ALG clone. Although elevated atmospheric CO2 alone barely affected the aboveground growth of the two P. australis clones, simultaneously elevated temperature and CO2 stimulated growth and aboveground biomass. Overall, elevated CO2 stimulated photosynthesis, but the clones responded differently to a concomitant increase in CO2 and temperature, depending on the phylogeographic background of the plant. The DK clone showed overall stronger responses, and can be considered the more plastic of the two clones with respect to CO2 and temperature. Thus, the DK clone may be better adapted to climate change than the ALG clone, at least in the short term 

Các bài báo khác
Số tạp chí Số 1(2012) Trang: 22-27
Tạp chí: The 2012 International Conference on Green Technology and Sustainable Development (GTSD2012)
Số tạp chí Vol 3, số 1(2012) Trang: 4-9
Tạp chí: Journal of Vietnamese Environment
Số tạp chí 50(2012) Trang: 484-491
Số tạp chí 3(2012) Trang: 7-14
Tạp chí: International Journal of Innovative Management, Information and Production
Số tạp chí vol. 12, no. 5(2012) Trang: 778-786
Tạp chí: Journal of Power Electronics
Số tạp chí vol. 12, no. 2(2012) Trang: pp. 333-343
Tạp chí: Journal of Power Electronics
Số tạp chí vol. 12, no. 3(2012) Trang: 477-486
Tạp chí: Journal of Power Electronics
Số tạp chí Vol 1, số 1(2012) Trang: 8-19
Tạp chí: Journal of Vietnamese Environment
Số tạp chí 67(2012) Trang: 541-556
Tạp chí: Wireless Personal Communications

Vietnamese | English

Vui lòng chờ...