Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (24): 86-92.doi: 10.11924/j.issn.1000-6850.casb15020016

Special Issue: 油料作物

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Analysis of Genetic Diversity of Fujian Peanut Farm Varieties Based on Agronomic Traits

Chen Xiangyu1,2, Xu Rirong1,2, Tang Zhaoxiu1,2   

  1. (1Key Laboratory of Crop Germplasm Utilization Between Fujian and Taiwan, Ministry of Agriculture, Fuzhou 350013; 2Institute of Crop Sciences, Fujian Academy of Agricultural Sciences, Fuzhou 350013)
  • Received:2015-02-03 Revised:2015-03-20 Accepted:2015-03-25 Online:2015-08-26 Published:2015-08-26

Abstract: The aims were to study the genetic diversity of peanut farm varieties in Fujian Province, and provide a theoretical basis for utilization of farm variety resources. The materials were 35 peanut farm varieties from different areas in Fujian Province. Data of 14 agronomic traits were analyzed by Excel software, and correlation analysis and cluster analysis were conducted with SPSS software. The results showed that among agronomic traits, the aboveground gynophore number per plant had the largest coefficient of variance, which was 73.3%, and followed by full pod number per plant, which was 44.3%. Shelling percentage had the least coefficient of variance, which was 5.3%. The full pod number per plant had the highest index of genetic diversity, followed by main stem height, and 100-seed weight had the lowest index of genetic diversity. The results of correlation analysis of agronomic traits showed that pod branches per plant, pod number per plant, full pod number per plant and underground ovary number per plant were positively and significantly correlated with the productivity per plant. Growth period was negatively and significantly correlated with the productivity per plant. Based on agronomic traits, 35 materials were clustered into 2 groups in the mean Euclidean distance 12. Group Ⅰincluded spanish type and valencia type, namely ssp. fastigiata. Group Ⅱ included virginia type and peruvian type, namely ssp. hypogaea. The result showed that the peanut farm varieties in Fujian had a rich genetic diversity, and the phylogenetic relationship was related with the classification of cultivated peanut subspecies. The results provided a basis for utilization of farm variety resources in Fujian.