Effects of Water Stresses on the Photosynthetic Characteristics of Hemarthria Compressa

Jun Ying Jin; Ling Yuan; Bao Chang

doi:10.4028/www.scientific.net/AMR.1010-1012.38

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1010-1012Effects of Water Stresses on the Photosynthetic...

Effects of Water Stresses on the Photosynthetic Characteristics of Hemarthria Compressa

Abstract:

The photosynthetic characteristic of plants may reflect the situation of growth and drought resistance. This study showed that drought affected significantly the P_n and T_r of Hemarthria compressa, the daily variation of Pn and T_r showed the “single peak” curve under different water condition, however, the change trend was totally opposite; the G_sand the C_i decreased with the increase of water stresses; the peak value of WUE of different water condition appeared before 10:00AM; the WUE decreased with the increase of T_r after 10:00AM. The WUE of different water stresses were higher than control before 12:00AM, however, less than control during 12:00 to 18:00. Hemarthria compressa generally tends to reduce the stomatal opening and transpiration in order to achieve high WUE under the water deficit, which belongs to strong drought resistance forage species.

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Periodical:

Advanced Materials Research (Volumes 1010-1012)

Pages:

38-41

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1010-1012.38

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Online since:

August 2014

Authors:

Jun Ying Jin, Ling Yuan*, Bao Chang

Keywords:

Photosynthetic Characteristics, Water Stress, Water Use Efficiency

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