我国优质梨分布区域及其适宜生态指标的研究

Studies on the Regional Distribution of the Main Superior Pear Cultivars and Their Optimum Ecological Indexes in China

摘要: 根据农业部在80年代两次组织评选出的全国24个优质梨产地的生态资料,用微型电子计算机系统和汉字dBASE III 建立数据库，统计出我国优势梨的品种构成比例，产地分布区域及其适宜的生态指标，并分析了这些优质梨主栽品种的生态适应性能，为我国今后大力推广优质梨品种，实现良种区域化栽培提供科学依据。

Abstract: In this paper a datum base was estabilished by a microcomputer system and dABSE III using ecological date collected from the areas of the main superior pear cultivars which were appraised by the Ministry of Agriculture through twice nationwide comparisions during the 1980s.The proprtion of productions,geographical distribution and optimum ecological indexes of the main superior pear cultivars were evaluated according to the statistical analysis of the data.The ecological adaptability of the cultivars were also analysed.Furthermore,a regional assignment and production planning were discussed with suggestions given for the national programme to adapt those cultivars in future.