Normal view MARC view ISBD view

The usefulness of chlorophyll fluorescence in screening for disease resistance, water stress tolerance, aluminium toxicity tolerance, and N use efficiency in maize

By: Duraes, F.O.M | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) Kenya | 7. Proceedings of the Eastern and Southern Africa Regional Maize Conference Nairobi (Kenya) 5-11 Feb 2002.
Contributor(s): Casela, C.R [coaut.] | Friesen, D.K.|Palmer, A.F.E [eds.] | Gama, E.E.G [coaut.] | Junior, A.L [coaut.] | Magalhaes, P.C [coaut.] | Marriel, I.E [coaut.] | Oliveira, A.C [coaut.] | Shanahan, J.F [coaut.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Nairobi (Kenya) KARI|CIMMYT : 2002Description: p. 356-360.ISBN: 970-648-120-6.Subject(s): Aluminium | Chlorophylls | Disease resistance | Fluorescence | Maize | Nitrogen content | Photosynthesis AGROVOC | Toxicity | Water | Yield factors | CIMMYT | KARI | Zea mays AGROVOCDDC classification: 338.16 Summary: Plant breeders need to know which traits are the most highly associated with grain yield in order to concentrate breeding efforts. Plant production. driven by photosynthesis. is sensitive to abiotic (environmental)and biotic (diseases) stresses. Among all photosynthetic functions, Photosystem II (PSII) is believed to be the most stress sensitive. The in vivo chlorophyll fluorescence (CF) technique is a powerful nondestructive and fast method to detect changes in the photosynthetic activity in leaves int1uenced by changes in the environment or by natural and anthropogenic stress. The ratio Fv/Fm has been shown to be a reliable indicator of stress. We compared CF assessments and conventional approaches, for constraints such as drought stress, N deficiency and aluminum toxicity which have induced damage to the PSII apparatus, and these changes have permitted us to distinguish genotypes tolerant and sensitive for each mentioned stress. Also, the CF parameters have indicated that maize inbred lines L4, L1, and L2 were resistant and line L3 was susceptible to the two southern rust pathogen (Puccinia polysora) isolates. Finally, the results found in this study have shown that in vivo CF measurements can be a useful tool to help in the screening of maize germplasm for abiotic and biotic stress tolerance.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
Book CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 338.16 FRI (Browse shelf) 1 Available 1P630188
Total holds: 0

Plant breeders need to know which traits are the most highly associated with grain yield in order to concentrate breeding efforts. Plant production. driven by photosynthesis. is sensitive to abiotic (environmental)and biotic (diseases) stresses. Among all photosynthetic functions, Photosystem II (PSII) is believed to be the most stress sensitive. The in vivo chlorophyll fluorescence (CF) technique is a powerful nondestructive and fast method to detect changes in the photosynthetic activity in leaves int1uenced by changes in the environment or by natural and anthropogenic stress. The ratio Fv/Fm has been shown to be a reliable indicator of stress. We compared CF assessments and conventional approaches, for constraints such as drought stress, N deficiency and aluminum toxicity which have induced damage to the PSII apparatus, and these changes have permitted us to distinguish genotypes tolerant and sensitive for each mentioned stress. Also, the CF parameters have indicated that maize inbred lines L4, L1, and L2 were resistant and line L3 was susceptible to the two southern rust pathogen (Puccinia polysora) isolates. Finally, the results found in this study have shown that in vivo CF measurements can be a useful tool to help in the screening of maize germplasm for abiotic and biotic stress tolerance.

English

0410|AGRIS 0401|AL-Maize Program

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