TY  - BK
ED  - Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT)
TI  - Development, maintenance and seed multiplication of open-pollinated maize varieties
SN  - 970-648-024-2
PY  - 1999///
CY  - Mexico
PB  - CIMMYT, 
KW  - Maize
KW  - AGROVOC
KW  - Methods
KW  - Research projects
KW  - Seed production
KW  - Varieties
KW  - Zea mays
N1  - Open Access
N2  - The procedures for the production of maize hybrid seed and maintenance of parental lines are well documented. However, not much has been written on the development, maintenance, and multiplication of improved open pollinated maize varieties (OPVs). This bulletin provides appropriate, user-friendly procedures and guidelines for variety development, evaluation and variety release systems, characterizing open-pollinated varieties, maintenance and seed production (breeder's seed, foundation seed, certified seed), isolation standards for seed production, standards for maintaining varietal uniformity, as well as for keeping reserve stocks, choosing sites for seed multiplication fields, and determining necessary quantities of seed
UR  - http://hdl.handle.net/10883/758
ER  -