Abstract: Peroxidase is an allozyme superfamily playing important roles in plant stress resistance. Several alfalfa cross combinations have been evaluated by peroxidase allozyme recombination with expect to lend a theoretic buttress for both alfalfa breeding and hybrid selection. in this paper, we have discussed the allozyme zymogram of peroxidase from parents and hybrids of some alfalfa cross combinations growing in the red soil region of china. The results have verified that genetic recombination have occurred in some loci of peroxidase during the process of crossing, which has resulted in production of two types of offspring including those with different zymogram profile from their corresponding parents and those with the same zymogram profile ones. Parents and their hybrids can share three common allozyme bands. As for parents, cultivar Arriba and Archer can give a more favorable performance than the wild alfalfa species and the dispersed one named AC-3 on peroxidase allozyme zymogram, which may due to the artificial selection effect in the breeding process. Moreover, selection of cross combinations with comparatively more divergent genetic backgrounds may hold promise for yield of beneficial breeding materials through exchanges of genetic material leading to elite characters'recombination.

Key words: Alfalfa, Peroxidase allozyme, Red soil region

CLC Number: 

• S551.7