Evolution of inbred line development methodologies in maize
Material type:
TextPublication details: Los Baños, Laguna (Philippines) PCARRD : 2000Description: p. 121-123Subject(s): Summary: 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.
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| Look under series title Governmental support for research and development of hybrid maize in Vietnam | Look under series title The role of exotic germplasm for hybrid maize breeding research | Look under series title The evolution of hope: A hierarchical, open-ended breeding system | Look under series title Evolution of inbred line development methodologies in maize | Look under series title Recombinant inbread lines in tropical maize improvement | Look under series title DNA fingerprinting and the seed business in Thailand | Look under series title Utilization and study of maize male sterility |
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.
English
0208|AGRIS 0201|AL-Maize Program|R01PROCE
Juan Carlos Mendieta
CIMMYT Publications Collection