The leaf color mark technology of yellow-green seedling mutant is discussed in the function of purity identification, hybrid seed purity improvement and male sterility in hot pepper.

This paper reviewed the strategies of producing male sterility by gene engineering and new ways for the reproduction of male sterility lines use as a female parent in hybrid seed production.

The main causes resulting in poor anther dehiscence in hybrid F1 were different with the kind and the number of heterozygous pollen sterility loci.