The Seed Morphological Characteristics of Cucurbita ficifolia in Yunnan and the Analysis on Its Correlation with Environmental Factors
Using Cucurbita ficifolia seeds from 32 harvesting areas in Yunnan Province as the research material,7 seed phenotype traits including seed length,width,thickness,seed shape index,1 000-grain weight,seed coat color and gloss,and 3 physiological traits including soluble sugar content,starch content and protein content in seeds were determined.The morphological variation of seeds among different provenances was analyzed.The influence of climate factors on seed morphology was studied by combining geographical location of provenance and meteorological factors.The results showed that there were significant or extremely significant differences in seed morphological charac-teristics among different provenances.There was some variation in seed morphological characteristics,among which 1 000-grain weight and seed thickness had the largest variation,while seed length,width and seed shape index tended to be stable.The 1 000-grain weight was positively correlated with seed length,seed width and seed thickness,the seed altitude was positively correlated with seed length,seed width and 1 000-grain weight,and the annual precipitation was positively correlated with seed thickness,and the seed longitude was negatively correlated with seed length and seed width.According to the morphological characteristics of seeds and the geographical and climatic factors,the geographical and climatic factors affect the seed morphology of pumpkin with black seed in a certain range,and the seeds from Longyang of Baoshan,Fengqing of Lincang,Dongchuan of Kunming,Zhenyuan of Puer and Luquan of Kunming were of better quality.
万方数据
维普
