9Roberto L C, Zedler J. Effect of light on seed germination in Phalaris arundinacea L. (reed canary grass) [J].Plant Ecology, 2001,155(1):75-78.
10Baskin C C, Milberg P, Anderson L. Seed dormancy- breaking and germination requirements of Orosera anglica, an insectivorous species of the Northern Hemisphere[J].Acta Oecologica, 2001(12):l-8.
