Analysis on the nutritional characters and comprehensive evaluation of 16 chestnut germplasm resources

In order to establish a highly efficient chestnut nutrition quality evaluation method and provide the basis for screening of Chinese chestnut excellent germplasm resources,the method of factor analysis combined with membership function was adopted in this paper.16 chestnut resources were set as the research object in different regions,which were introduced and grafted to Qianxi Hebei. Determination and analysis of the 12 main nutritional quality indicators was measured to explore the main factors affecting the nutritional quality of Chinese chestnut,then calculated the comprehensive value,and evaluated the nutritional quality of chestnut.Qianxi Hebei‘Cuijiabuzi2399'gained comprehensive score highest scores.Qianxi's unique soil and climate conditions on the growth and development of chestnut had a certain advantage. And functional factors such as soluble sugar,starch,moisture content,crude protein factors and fat had great influences on the comprehensive evaluation,and the impact of auxiliary factors such as mineral elements were relatively small.