My book is useful for information on the inter relationship among different characters by estimation of genotypic and phenotypic correlation coefficients, the direct and indirect effects of different component characters on seed yield using path coefficient analysis, the clustering pattern of genotypes and the extent of genetic diversity among different clusters as well as the extent of genetic distance among different genotypes of soybean within a cluster. Это и многое другое вы найдете в книге Character Association and Genetic Divergence in Soybean (Vanrajbhai Gohil and Gambhirsinh Vala)