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利用图书馆和网络数据库检索工具,通过对包含“川榛”字段的各类书籍、文献的整理,对川榛遗传资源的分类地位、分布范围及其研究利用现状等内容进行了归纳总结,并通过对川榛分布区代表样点气象数据的统计,对其适生的生态条件进行了分析。结果表明:川榛(贵榛、黔榛)主要分布于中国102°06’~121°26’E,26°29’~36°58’N之间,年均温6.1~19.3℃的广大区域,覆盖全国15个行政省区、直辖市,自然分布以山坡地为主,跨越温带、暖温带和亚热带,具有广泛的生态适应性;分布范围、生态习性、植物学性状、孢粉学和遗传关系等方面的资料表明,川榛与平榛存在明显的差别,两者应为独立的种;川榛具有较高的经济价值和育种价值,但其开发利用进展缓慢;川榛遗传资源的调查与保护、种群多样性及杂交利用等研究工作亟待开展。此研究可为今后开展川榛遗传资源的调查、收集和评价工作提供依据。
Using the library and online database retrieval tools, this paper summarizes the classification status, distribution range and status quo of research and utilization of various genetic resources in Sichuan hazelnut by sorting out various kinds of books and documents containing “Kuan hazel” field , And through the statistics of the representative samples of the sampling points in the distribution area of Chuan han, the suitable ecological conditions were analyzed. The results showed that the main components of Sichuan hazelnut (Guizhen, Guizhou hazel) were mainly distributed in the vast area between 102 ° 06 ’~ 121 ° 26’E and 26 ° 29’ ~ 36 ° 58’N in China with an annual average temperature of 6.1 ~ 19.3 ° C Covering 15 provinces, autonomous regions and municipalities directly under the Central Government. The natural distribution is dominated by hillsides and spans the temperate zone, warm temperate zone and subtropical zone, and has a wide range of ecological adaptability; distribution range, ecological habits, botanical characters, palynology and genetic relationship And other aspects of the data show that there is a clear difference between Huanghua and Hazelnut, both should be independent species; Huanghua has a high economic value and breeding value, but its development and utilization of slow progress; Research on conservation, population diversity and hybridization is urgently needed. This study can provide the basis for the future investigation, collection and evaluation of Chuan hazel genetic resources.