Research Article

Frontiers of Biology in China

, Volume 1, Issue 1, pp 46-49

Different Responses of Sexual and Asexual Reproduction of Arundinella hirta to Flooding

  • Zeng Bo Affiliated withSchool of Life Science, Southwest China UniversityKey Laboratory of Eco-environments in Three Gorges Reservoir Region (MOE), Southwest China UniversityChongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, Southwest China University Email author 
  • , Fu Tianfei Affiliated withSchool of Life Science, Southwest China UniversityKey Laboratory of Eco-environments in Three Gorges Reservoir Region (MOE), Southwest China UniversityChongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, Southwest China University
  • , Ulrich Schurr Affiliated withResearch Center of Juelich, ICG III (Phytosphere)
  • , Arnd J. Kuhn Affiliated withResearch Center of Juelich, ICG III (Phytosphere)

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Abstract

The sexual and asexual reproductive features of the graminoid species Arundinella hirta growing at riversides of the Jialing River were analyzed. It was found that the total seed mass, seed number per plant, and sexual reproductive allocation of A. hirta decreased with decreasing bank elevation, and plants growing at the lowest elevations of banks subjected to intense flooding did not show sexual reproduction. The total plant biomass and the number of ramifications per plant increased with flooding intensity, which implies that, contrary to sexual reproduction, asexual reproduction of A. hirtawas enhanced by flooding.

Keywords

Arundinella hirta asexual reproduction flooding reproductive allocation sexual reproduction