Submitted to: American Peanut Research and Education Society Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: 4/15/2004
Publication Date: 12/15/2004
Citation: Jiang, H., B. Liao, N. Duan, X. Q. Liang, C. Holbrook , and B. Guo. 2004. Development of a core collection of peanut germplasm in China. Proc. Amer. Peanut Res. and Educ. Soc. 36:33. Interpretive Summary: not required
Technical Abstract: Around 6000 accessions of cultivated peanut (Arachis hypogaea L.) have been collected in China. In order to characterize and utilize the germplasm more efficiently for further crop improvement, the available morphological and biochemical data were analyzed to develop a core collection. The entire collection was first sorted by botanical types. Data on characters including growth period, seed weight, shelling percentage, oil and protein content were then used to cluster accessions in each botanical type. The 5890 accessions were grouped into 258 clusters and 582 lines were randomly selected to form a core collection. The ranges and means of all the variables for accessions in the core were similar to those for the entire collection. The data on reaction to bacterial wilt (BW), late leafspot (LLS) and early leafspot (ELS) were used to test the core collection's representative of the entire collection. Based on chi square test it was found that this core collection could be used to improve the efficiency of identifying resistances in the entire collection.