Normal view MARC view ISBD view

Breeding maize hybrids in commercial environment

By: Narayan, K | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico, DF (Mexico) | 7, Proceedings of the Asian Regional Maize Workshop Los Baños (Philippines) 23-27 Feb 1998.
Contributor(s): Vasal, S.K.|Gonzalez Ceniceros, F.|XiongMing, F [eds.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Los Baños, Laguna (Philippines) PCARRD : 2000Description: p. 604-605.Subject(s): Agroclimatic zones | Asia | Crop yield | Developing Countries | Heterosis breeding | Maize | Marketing boards | Marketing policies | Private sector | Public sector | Seed production | Hybrids AGROVOC | Plant breeding AGROVOCSummary: Hybrid.breeding programmes in public and private sector are not much different from each other. Hence, points made here are not exclusive to commercial hybrids. However, minute details that are looked into at every stage of the time bound programme in the private sector differentiates it from its counter part. Some of these details are presented here, which could be a common experience in the developing countries of Asia.|Breeding strategy is based on the type and maturity of the hybrid required for the target area. This is worked out on the basis of agroclimatic conditions, rotations and hybrids that are marketed. If more than one hybrid is required, degree of priority is assigned to each of them. Seed production should be as easy as possible. This is achieved by having parents which do not need staggered planting, ease in detasselling, assured yields in both parents free from off types. Presence of distinct, but contrasting phenotypic characters in both parents helps in producing quality seeds. Secondly the contrasting characters provide genetic diversity which is essential for heterosis.|Double cross/three-way cross hybrids are preferred (as against single crosses), because of the high yield potential in seed parents, which In turn results in lower seed cost. Seed parents bearing regular rows with bold seeds are preferred so that the hybrid seeds are bold, with uniform size and shape.|Breeder works closely with all those dealing with production, processing, minikits and|marketing. Time bound programs at all levels and strict quality control are essential. There is a close liaison with the seed producers. Farmers and seed dealers are involved for minikits and field days to envisage their impression. Support of public sector institutions, especially for evaluations, germplasms and basic research etc, is keenly sought.|Adequate profit is essential for investments in research and other allied activities. Success of|the breeding programme is judged by the quantities of the hybrid seed sold and the period for which it is liked by the farmers.|A unique feature of private funded breeding is that it is not sufficient if a hybrid is identified orreleased. It is valued only if it is accepted by the farmers at:td becomes a success. The hybrid receives further recognition if it has tolerance for various stress conditions.Collection: CIMMYT Publications Collection
Tags from this library: No tags from this library for this title. Log in to add tags.
    average rating: 0.0 (0 votes)
Item type Current location Collection Call number Copy number Status Date due Barcode Item holds
Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection Look under series title (Browse shelf) 1 Available 1X631326
Total holds: 0

Hybrid.breeding programmes in public and private sector are not much different from each other. Hence, points made here are not exclusive to commercial hybrids. However, minute details that are looked into at every stage of the time bound programme in the private sector differentiates it from its counter part. Some of these details are presented here, which could be a common experience in the developing countries of Asia.|Breeding strategy is based on the type and maturity of the hybrid required for the target area. This is worked out on the basis of agroclimatic conditions, rotations and hybrids that are marketed. If more than one hybrid is required, degree of priority is assigned to each of them. Seed production should be as easy as possible. This is achieved by having parents which do not need staggered planting, ease in detasselling, assured yields in both parents free from off types. Presence of distinct, but contrasting phenotypic characters in both parents helps in producing quality seeds. Secondly the contrasting characters provide genetic diversity which is essential for heterosis.|Double cross/three-way cross hybrids are preferred (as against single crosses), because of the high yield potential in seed parents, which In turn results in lower seed cost. Seed parents bearing regular rows with bold seeds are preferred so that the hybrid seeds are bold, with uniform size and shape.|Breeder works closely with all those dealing with production, processing, minikits and|marketing. Time bound programs at all levels and strict quality control are essential. There is a close liaison with the seed producers. Farmers and seed dealers are involved for minikits and field days to envisage their impression. Support of public sector institutions, especially for evaluations, germplasms and basic research etc, is keenly sought.|Adequate profit is essential for investments in research and other allied activities. Success of|the breeding programme is judged by the quantities of the hybrid seed sold and the period for which it is liked by the farmers.|A unique feature of private funded breeding is that it is not sufficient if a hybrid is identified orreleased. It is valued only if it is accepted by the farmers at:td becomes a success. The hybrid receives further recognition if it has tolerance for various stress conditions.

English

0208|AGRIS 0201|AL-Maize Program|R01PROCE

Juan Carlos Mendieta

CIMMYT Publications Collection

There are no comments for this item.

Log in to your account to post a comment.
baner

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Monday –Friday 9:00 am. 17:00 pm. If you have any question, please contact us at CIMMYT-Knowledge-Center@cgiar.org

Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Lunes –Viernes 9:00 am. 17:00 pm. Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org