2Beard J B, Sifers S J, Griggs S D. Genetic diversity in low temperature hardiness among 35 major warm-season turfgrass genotypes[R]. Progress resport Texas agricultural experiment station,1991 : 56-58.
3Dunn J H. Low temperature tolerance of zoysiagrasses[J]. HortScience, 1999, 34 (1):96-99.
5Gerloff E D. Soluble proteins in alfalfa root as related to cold hardiness[J]. Plant Physiol. , 1967, 42:895-899.
6Catschet M J, Taliaferro C M, Anderson J A, et al. Cold acclimation and alterations in protein synthesis in Bermudagrass crowns [J]. Journal of American Horticultural Science, 1994, 119(3):477-480.
7Catschet M J, Taliaferro CM, Porter D R, et al. A cold-regulated protein from Bermudagrass crowns in a chitinase[J]. Crop Science, 1996, 36(3):712-718.
8Laemmli U K. Cleavage of structura: proteins during the assembly of the head of bacteriophage T4 [J]. Nature, 1970, 227 :680-685.
3Okawara R, Kaneko S. Change in photosynthetic oxygen evolution and chlorophyll fluorescence in some cool season grasses and zoysiagrasses(Zoysia spp. ) from autumn to winter[J]. Soil Sci and Plant Nutrition, 1995,41(4):801-806.
4Hong Y P. Studies on the morphological observation,flowering and germination, growth and cold resistance of wild grown Zoysia grass in Korea [J]. Research Reports of the Office of Rural Development Horticulture and Agri-engine,1977,19:17-25.
5Okawara R, Kaneko S. Effect of low growth-temperature on photosynthetic O2 evolution and chlorophyll fluorescence in Zoysiagrass [Zoysia ][J]. Jour Jap Soc Grassland Sci,1997,42(4) :294-298.
6Matsuba K, Imaizumi N, Naneko S,et al. Photosynthetic responses to temperature of phosphoenolpyruate carboxykinase type species differing in cold sensitivity [J].Plant cell and Environment, 1997,15(2) : 268~274.
7Lyons J M. Chilling injury in plants [J]. Ann. Rev. Plant Physiol. 197,24 : 445 - 446.
8Dunn J H. Low temperature tolerance of zoysiagrasses[J].Hortscience, 1999,34(1):96-99.