Normal view MARC view ISBD view

Management and breeding approaches to alleviate the effect of drought on maize in Vietnam

By: Ngo Huu Tinh | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico).
Contributor(s): Edmeades, G.O.|Banziger, M.|Mickelson, H.R.|Pena-Valdivia, C.B [eds.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Mexico, DF (Mexico) CIMMYT : 1997ISBN: 968-6923-93-4.Subject(s): Climatic factors | Drought stress AGROVOC | Resistance to injurious factors | Selection | Viet Nam | CIMMYT | Zea mays AGROVOC | Genotypes AGROVOC | Plant breeding AGROVOCDDC classification: 633.153 Summary: Vietnam is traditionally a rice-eating country and favorable irrigated land is reserved for rice production. Maize is planted mostly as an upland crop where drought is more common. Average rainfall is 1,500 - 2,000 mm per year but rainfall distribution is irregular in some regions and seasons, leading to drought. The National Maize Research Institute's research has led to the adoption of new management practices and varieties to alleviate the effect of drought on maize. Widely adapted early-maturing maize varieties are used to escape periods of low moisture availability during critical development stages. Early- maturing open-pollinated varieties (OPVs) 'TSB-2', 'MSB-49', and 'MSB-49B' are widely grown, and new OPVs are being developed. intercropping maize with legumes (soybean, groundnut and mungbean) appears to reduce evaporation from the soil surface, increases profits and improves soil condition and water holding capacity. Transplanting winter maize takes advantage of adequate temperatures, humidity and sunlight during the early stages of plant development and helps avoid drought and low temperatures that are common at the end of the rainy season. Crop duration in the field is being reduced by harvesting the maize for fresh consumption as glutinous, sweet, or baby corn, thereby avoiding late season drought. Another focus is the development of short-stature erect-leaf hybrids for planting at high densities and in intercropping systems. A few such hybrids-'LVN-20', 'EE-1', and 'HTD-5'-have been widely disseminated. Prolific maize is being selected to reduce drought-induced barrenness, and is being used in an effort to develop more prolific baby corn hybrids. 'NN-1' is one such promising hybrid. Drought-tolerant germplasm from CIMMYT, including 'Tuxpeño Sequia', 'Pool 26 Sequia', 'Pool 18 Sequia', and wide crosses between teosinte and maize are being used as genetic resources in our breeding program for drought tolerance and prolificacy.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 633.153 EDM (Browse shelf) 1 Available 1A624179
Total holds: 0

Vietnam is traditionally a rice-eating country and favorable irrigated land is reserved for rice production. Maize is planted mostly as an upland crop where drought is more common. Average rainfall is 1,500 - 2,000 mm per year but rainfall distribution is irregular in some regions and seasons, leading to drought. The National Maize Research Institute's research has led to the adoption of new management practices and varieties to alleviate the effect of drought on maize. Widely adapted early-maturing maize varieties are used to escape periods of low moisture availability during critical development stages. Early- maturing open-pollinated varieties (OPVs) 'TSB-2', 'MSB-49', and 'MSB-49B' are widely grown, and new OPVs are being developed. intercropping maize with legumes (soybean, groundnut and mungbean) appears to reduce evaporation from the soil surface, increases profits and improves soil condition and water holding capacity. Transplanting winter maize takes advantage of adequate temperatures, humidity and sunlight during the early stages of plant development and helps avoid drought and low temperatures that are common at the end of the rainy season. Crop duration in the field is being reduced by harvesting the maize for fresh consumption as glutinous, sweet, or baby corn, thereby avoiding late season drought. Another focus is the development of short-stature erect-leaf hybrids for planting at high densities and in intercropping systems. A few such hybrids-'LVN-20', 'EE-1', and 'HTD-5'-have been widely disseminated. Prolific maize is being selected to reduce drought-induced barrenness, and is being used in an effort to develop more prolific baby corn hybrids. 'NN-1' is one such promising hybrid. Drought-tolerant germplasm from CIMMYT, including 'Tuxpeño Sequia', 'Pool 26 Sequia', 'Pool 18 Sequia', and wide crosses between teosinte and maize are being used as genetic resources in our breeding program for drought tolerance and prolificacy.

English

9801|AGRIS 9702

Jose Juan Caballero

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.
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.
Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org