TY  - PRO
AU  - Chaudhary,D.N.
AU  - Vasal,S.K.|Gonzalez Ceniceros,F.|XiongMing,F.
ED  - Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico, DF (Mexico)
ED  - 7, Proceedings of the Asian Regional Maize Workshop
TI  - Evolution of inbred line development methodologies in maize
PY  - 2000///
CY  - Los Baños, Laguna (Philippines)
PB  - PCARRD
KW  - Biotechnology
KW  - Germplasm
KW  - AGROVOC
KW  - Inbred lines
KW  - Maize
KW  - Seeds
KW  - Yields
KW  - Hybrids
KW  - Plant breeding
N2  - Plant breeding is a function of gerrnplasm, technique and resources. Very often, resource component becomes major constraint in several breeding programs. As for the gerrnplasm, it is estimated that only a small fraction of total corn gerrnplasm available has been exploited. Since the inception of hybrid technology, efforts have been put continuously to develop and improve inbreds for identification of productive hybrids. Different types of gerrnplasm have been used in inbred development efforts with varying degree of success. Starting with bulk, and pedigree methods of breeding, several other mehtodologies have evolved over the time to achieve this goal. Some of the procedures like having evaluation nursery , subjecting inbreeding populations to high density, discouraging use of knife to clip silk/husk have greatly improved efficiency of selection. Simultaneously, some of the new tools like doubling of monoploids, tissue culture and biotechnology are beginning to show promise. Recently with increasing emphasis on use of SX hybrids in tropics, seed yield of inbreds and its producibility have drawn greater attention of breeders
ER  -