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Breeding and agronomic practices for winter survival in cereals

By: Mahfoozi, S | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) | Tbilisi (Georgia) 14-17 Jun 2004.
Contributor(s): Bedoshvili, D [ed.] | Fowler, D.B [coaut.] | Ketata, H [coaut.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Tbilisi (Georgia) CIMMYT : 2004Description: p. 270-271.Subject(s): Biotechnology | Crop management | Disease resistance | Environmental conditions | Morphogenesis | Physiologists | Rusts | Seed production | Temperature | CIMMYT | Hybrids AGROVOC | Plant breeding AGROVOCDDC classification: 633.1147 Summary: The availability of highly adapted cu1tivars with superior low-temperature (LT) tolerance is considered as a prerequisite for successful winter cereals production in many areas of the world. However, even the hardiest cultivars can be damaged by L T if proper attention is not paid to agronomic practices, especially in regions of marginal adaptation. Conversely the best cu1tivar will not be successful un1ess highly adapted cu1tivars are available for production. The objectives of this paper are to discuss: 1) breeding for LT tolerance and developmental regulation of LT -induced genes expression and 2) the effect of agronomic practices on winter survival in cereals as follows: Breeding for LT tolerance: Advances in plant physiology and biotechnology have provided opportunities for plant breeders to expand their attack on the LT tolerance barrier that has frustrated them for so long. Exploitation of new technology to produce LT tolerant cu1tivars will require close cooperation between plant breeders, physiologists and biotechnologist. Evaluation of LT resources, selection methods, morphological, agronomical and phenological characters associated with LT tolerance, the regulatory role of developmental genes on expression of LT tolerance in cereals under field and controlled conditions, molecular aspects of regulation of cold -induced genes, transition from the vegetative to the reproductive are discussed. Suggestions are made as to how research in this particular area might best proceed. Effect of agronomic practices on winter survival: Role of crop management such as sowing depth, sowing dates, soil fertility, methods of sowing on winter survival and cereals production are discussed in low and high cold stress regions. It is concluded that understanding of the mechanisms which winter cereals use to survive periods of LT stress and similarly understanding of the role of crop management on winter survival play important role in winter cereals production in low and high cold stress regions.Collection: CIMMYT Publications Collection
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 633.1147 BED (Browse shelf) 1 Available 1I630072
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Abstract only

The availability of highly adapted cu1tivars with superior low-temperature (LT) tolerance is considered as a prerequisite for successful winter cereals production in many areas of the world. However, even the hardiest cultivars can be damaged by L T if proper attention is not paid to agronomic practices, especially in regions of marginal adaptation. Conversely the best cu1tivar will not be successful un1ess highly adapted cu1tivars are available for production. The objectives of this paper are to discuss: 1) breeding for LT tolerance and developmental regulation of LT -induced genes expression and 2) the effect of agronomic practices on winter survival in cereals as follows: Breeding for LT tolerance: Advances in plant physiology and biotechnology have provided opportunities for plant breeders to expand their attack on the LT tolerance barrier that has frustrated them for so long. Exploitation of new technology to produce LT tolerant cu1tivars will require close cooperation between plant breeders, physiologists and biotechnologist. Evaluation of LT resources, selection methods, morphological, agronomical and phenological characters associated with LT tolerance, the regulatory role of developmental genes on expression of LT tolerance in cereals under field and controlled conditions, molecular aspects of regulation of cold -induced genes, transition from the vegetative to the reproductive are discussed. Suggestions are made as to how research in this particular area might best proceed. Effect of agronomic practices on winter survival: Role of crop management such as sowing depth, sowing dates, soil fertility, methods of sowing on winter survival and cereals production are discussed in low and high cold stress regions. It is concluded that understanding of the mechanisms which winter cereals use to survive periods of LT stress and similarly understanding of the role of crop management on winter survival play important role in winter cereals production in low and high cold stress regions.

English

0408|AGRIS 0401|AL-Wheat Program

Juan Carlos Mendieta

CIMMYT Publications Collection

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