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Genetic improvement of tolerance to terminal drought stress in pearl millet (Pennisetum glaucum, (L.) R. Br.)

By: Bidinger, F.R | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico).
Contributor(s): Chandra, S [coaut.] | Mahalakshmi, V [coaut.] | Ribaut, J.M.|Poland, D [eds.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Mexico, DF (Mexico) CIMMYT : 2000ISBN: 970-648-052-8.Subject(s): Cereals | Drought resistance | Drought stress AGROVOC | Injurious factors | Molecular genetics | Pennisetum glaucum | Research projects | CIMMYT | Yields AGROVOC | Plant breeding AGROVOCDDC classification: 631.53 Summary: Panicle harvest index (PNHI) is a useful measure of genotype response to terminal drought stress in pearl millet and therefore a potential selection criterion for terminal stress tolerance, Selection for combining ability for PNHI in potential hybrid parent test cross nurseries improved combining ability for PNHI itself and for grain yield by 5-10% in terminal stress environments (compared to mean of high and low PNHI selections), in materials otherwise unselected for stress tolerance, Selection of experimental varieties on the basis of composite progeny PNHI in terminal stress environments improved PNHI by 1-3% and grain yield by 2-8% under terminal stress (in comparison to control experimental varieties, based on randomly selected progenies), Selection of experimental varieties on the basis of grain yield in nonstressed environments resulted in decreases in PNHI of 1-7% and a decrease in grain yield of 5-19% in terminal stress environments, compared to equivalent random checks, Estimation of the components' correlated response in grain yield to selection for PNHI in mapping population progeny test crosses, indicated that the (genetic) conditions for PNHI to be an effective indirect selection criterion for grain yield under stress needs to be clearly defined.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 E629165
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Panicle harvest index (PNHI) is a useful measure of genotype response to terminal drought stress in pearl millet and therefore a potential selection criterion for terminal stress tolerance, Selection for combining ability for PNHI in potential hybrid parent test cross nurseries improved combining ability for PNHI itself and for grain yield by 5-10% in terminal stress environments (compared to mean of high and low PNHI selections), in materials otherwise unselected for stress tolerance, Selection of experimental varieties on the basis of composite progeny PNHI in terminal stress environments improved PNHI by 1-3% and grain yield by 2-8% under terminal stress (in comparison to control experimental varieties, based on randomly selected progenies), Selection of experimental varieties on the basis of grain yield in nonstressed environments resulted in decreases in PNHI of 1-7% and a decrease in grain yield of 5-19% in terminal stress environments, compared to equivalent random checks, Estimation of the components' correlated response in grain yield to selection for PNHI in mapping population progeny test crosses, indicated that the (genetic) conditions for PNHI to be an effective indirect selection criterion for grain yield under stress needs to be clearly defined.

English

0101|AL-ABC 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