Crossa J. Gene-action and the bottleneck effect in relation to sample size for main tenance of cross-pollinated population. Field Crops R esearch, 1992, 29: 225~239.
Breese EL. Regeneration and multiplication of germ plasm resources in seed genebanks: the scientific background. Rome: IBPGR, 1989, 18~42.
[6]
Singh, Williams JT. Main tenance and m ultiplication of plant genetic resources. In: Holden JH, Williams JT. Ed. C rop Genetic Resources: Conservation and Evaluation. IBPG R George Allen and Unwin L td, 1984.