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Genetic control of phosphorus uptake and utilization efficiency in maize and sorghum under marginal soil conditions

By: Schaffert, R.E | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico).
Contributor(s): Alves, V.M.C [coaut.] | Parentoni, S.N [coaut.] | Raghothama, K.G [coaut.] | Ribaut, J.M.|Poland, D [eds.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Mexico, DF (Mexico) CIMMYT : 2000ISBN: 970-648-052-8.Subject(s): Cereals | Genetic control | Molecular genetics | Nutrient uptake | Phosphorus | Research projects | Soil classification and genesis | Sorghum | CIMMYT | Zea mays AGROVOC | Yields AGROVOC | Plant breeding AGROVOCDDC classification: 631.53 Summary: Production constraints are more intense on acid soils, which cover 30% of the worlds land area. Toxic levels of Al associated with low availability and high fixation of P frequently occur in acid soils. Both Al toxicity and low P availability effect root development and interact with moisture stress in plant development, further complicating the negative effect of drought. Genetic resources tolerant to Al toxicity and more efficient in P uptake can reduce some of the negative effects of moisture stress in these marginal soils. This paper describes the effects Al toxicity and P stress on plant development and some plant responses to overcome these stresses. The identification of genes responsible for positive responses to these stresses and the stacking of these genes in improved cultivars can improve the productivity and/or reduce input requirements, making production more sustainable.Collection: CIMMYT Publications Collection
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 631.53 RIB (Browse shelf) 1 Available G629165
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Production constraints are more intense on acid soils, which cover 30% of the worlds land area. Toxic levels of Al associated with low availability and high fixation of P frequently occur in acid soils. Both Al toxicity and low P availability effect root development and interact with moisture stress in plant development, further complicating the negative effect of drought. Genetic resources tolerant to Al toxicity and more efficient in P uptake can reduce some of the negative effects of moisture stress in these marginal soils. This paper describes the effects Al toxicity and P stress on plant development and some plant responses to overcome these stresses. The identification of genes responsible for positive responses to these stresses and the stacking of these genes in improved cultivars can improve the productivity and/or reduce input requirements, making production more sustainable.

English

0101|AL-ABC Program|AL-Maize Program|AGRIS 0101

Jose Juan Caballero

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