Adaptability Evaluation of Ex Situ Conservation of Thirteen Wild Paphiopedilum Species by Gray-Correlation Analysis
LI Xiu-Ling1, WANG Xiao-Guo1, LI Chun-Niu1, ZHOU Jin-Ye1, DENG Jie-Ling1, ZENG Song-Jun2, BU Zhao-Yang1, LU Jia-Shi1
1. Flower Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China;
2. Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
Wild Paphiopedilum species are under threat of extinction due to over-collection and loss of suitable habitats. Ex situ conversation is an effective approach for Paphiopedilum germplasm preservation. The adaptability of 13 Paphiopedilum species were evaluated by gray-correlation analysis based on botanical characteristics including plant morphology and growth situation. The main factors affecting ex situ conservation are discussed. Results showed that the most suitable species for ex situ conservation in Nanning, Guangxi were P. hirsu-tissimum, P. concolor, P. dianthum, and P. wenshanense because their correlation coefficients to the ideal species were higher than 0.8; the adaptabilities of P. bellatulum, P. emersonii, P. barbigerum, P. purpuratum, P. villosum, and P. micranthum were intermediate; while the remaining three species exhibited low adaptability as they could not flower and their correlation coefficients were lower than 0.6. Adaptability differed between different species or the same species from a different origin, and temperature of the germplasm garden may be the main factor affecting ex situ conservation.
李秀玲, 王晓国, 李春牛, 周锦业, 邓杰玲, 曾宋君, 卜朝阳, 卢家仕. 基于灰色关联分析方法评价13种野生兜兰的迁地保护适应性[J]. 植物科学学报, 2015, 33(3): 326-335.
LI Xiu-Ling, WANG Xiao-Guo, LI Chun-Niu, ZHOU Jin-Ye, DENG Jie-Ling, ZENG Song-Jun, BU Zhao-Yang, LU Jia-Shi. Adaptability Evaluation of Ex Situ Conservation of Thirteen Wild Paphiopedilum Species by Gray-Correlation Analysis. Plant Science Journal, 2015, 33(3): 326-335.
2015, Vol. 33 
