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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
07/07/2020 |
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Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
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Autor : |
CASTRO, M.; PETERSON, C.J.; DALLA RIZZA, M.; DÍAZ DELLA VALLE, P.; VÁZQUEZ, D.; IBAÑEZ, W.; ROSS, A. |
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Afiliación : |
MARINA CASTRO DERENYI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARCO DALLA RIZZA VILARO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DANIEL VÁZQUEZ PEYRONEL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WILFREDO ARIEL IBAÑEZ ALVEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Influence of heat stress on wheat grain characteristics and protein molecular weight distribution. |
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Fecha de publicación : |
2007 |
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Fuente / Imprenta : |
ln: International Wheat Conference, 7., 27 Nov-2 Dec 2005, Mar del Plata, AR Buck, H.T.; Nisi, J.E.; Salomón, N., ed. Wheat production in stressed environments : proceedings. Dordrecht: Springer, 2007. |
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Páginas : |
p. 365-371. |
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Serie : |
(Developments in Plant Breeding ; 12) |
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Idioma : |
Inglés |
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Contenido : |
Abstract: Wheat (Triticum aestivum L.) plants exposed to high temperatures (>35 C) during ripening show altered agronomic and grain quality characteristics. Seasonal variation in quality creates difficulties in the marketing and processing of grain. Improving the genetic adaptation of wheat cultivars to heat stress is an important objective in breeding programs. Some genotypes have been reported to have a thermo tolerant response and could be used as genetic sources for heat tolerance. Fourteen spring wheat genotypes (Debeira, Estanzuela Cardenal, Estanzuela Pelón 90, INIA Boyero, INIA Caburé, INIA Churrinche, INIA Cóndor, INIA Mirlo, Pavón 76, Trigo 3, Ventnor, LE 2262, LE 2265,LE 2290) were evaluated in INIA La Estanzuela, Uruguay, to characterize their response to high temperatures. Variation in the duration and timing of heat stress was assessed
in two greenhouse experiments. Grain protein concentration increased with heat stress, having the greatest effect when stress was imposed early in grain fill. High temperatures reduced the length of the grain fill period. A longer duration of heat stress resulted in the shortest grain fill period, but there was no difference in grain fill duration with respect to timing of the stress. Heat stress reduced thousand kernel weights without
any effect attributable to the duration or timing of stress. Heat stress did not noticeably influence the protein quality of a selected subset of six wheat genotypes, measured using high-performance liquid chromatography (HPLC). However, significant genotype x treatment interaction was detected. INIA Churrinche showed a decrease in the ratio of polymeric to monomeric gluten proteins in response to heat stress. For Estanzuela Pelón 90, INIA Cóndor, and Trigo 3, the ratio was unchanged, and for Debeira and Pavón 76, the ratio increased. Cultivars with relatively stable grain characteristics and protein molecular weight distribution were identified and could be used as genetic sources for improving resistance to heat stress. MenosAbstract: Wheat (Triticum aestivum L.) plants exposed to high temperatures (>35 C) during ripening show altered agronomic and grain quality characteristics. Seasonal variation in quality creates difficulties in the marketing and processing of grain. Improving the genetic adaptation of wheat cultivars to heat stress is an important objective in breeding programs. Some genotypes have been reported to have a thermo tolerant response and could be used as genetic sources for heat tolerance. Fourteen spring wheat genotypes (Debeira, Estanzuela Cardenal, Estanzuela Pelón 90, INIA Boyero, INIA Caburé, INIA Churrinche, INIA Cóndor, INIA Mirlo, Pavón 76, Trigo 3, Ventnor, LE 2262, LE 2265,LE 2290) were evaluated in INIA La Estanzuela, Uruguay, to characterize their response to high temperatures. Variation in the duration and timing of heat stress was assessed
in two greenhouse experiments. Grain protein concentration increased with heat stress, having the greatest effect when stress was imposed early in grain fill. High temperatures reduced the length of the grain fill period. A longer duration of heat stress resulted in the shortest grain fill period, but there was no difference in grain fill duration with respect to timing of the stress. Heat stress reduced thousand kernel weights without
any effect attributable to the duration or timing of stress. Heat stress did not noticeably influence the protein quality of a selected subset of six wheat genotypes, measured using high-performanc... Presentar Todo |
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Palabras claves : |
GRAIN CHARACTERISTIC; HEAT STRESS; PROTEIN MOLECULAR WEIGHT. |
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Thesagro : |
CALIDAD; ENFERMEDADES DE LAS PLANTAS; FACTORES AMBIENTALES; FISIOLOGÍA VEGETAL; FITOMEJORAMIENTO; TRITICUM. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 03131naa a2200325 a 4500
001 1048186
005 2020-07-07
008 2007 bl uuuu u00u1 u #d
100 1 $aCASTRO, M.
245 $aInfluence of heat stress on wheat grain characteristics and protein molecular weight distribution.
260 $c2007
300 $ap. 365-371.
490 $a(Developments in Plant Breeding ; 12)
520 $aAbstract: Wheat (Triticum aestivum L.) plants exposed to high temperatures (>35 C) during ripening show altered agronomic and grain quality characteristics. Seasonal variation in quality creates difficulties in the marketing and processing of grain. Improving the genetic adaptation of wheat cultivars to heat stress is an important objective in breeding programs. Some genotypes have been reported to have a thermo tolerant response and could be used as genetic sources for heat tolerance. Fourteen spring wheat genotypes (Debeira, Estanzuela Cardenal, Estanzuela Pelón 90, INIA Boyero, INIA Caburé, INIA Churrinche, INIA Cóndor, INIA Mirlo, Pavón 76, Trigo 3, Ventnor, LE 2262, LE 2265,LE 2290) were evaluated in INIA La Estanzuela, Uruguay, to characterize their response to high temperatures. Variation in the duration and timing of heat stress was assessed in two greenhouse experiments. Grain protein concentration increased with heat stress, having the greatest effect when stress was imposed early in grain fill. High temperatures reduced the length of the grain fill period. A longer duration of heat stress resulted in the shortest grain fill period, but there was no difference in grain fill duration with respect to timing of the stress. Heat stress reduced thousand kernel weights without any effect attributable to the duration or timing of stress. Heat stress did not noticeably influence the protein quality of a selected subset of six wheat genotypes, measured using high-performance liquid chromatography (HPLC). However, significant genotype x treatment interaction was detected. INIA Churrinche showed a decrease in the ratio of polymeric to monomeric gluten proteins in response to heat stress. For Estanzuela Pelón 90, INIA Cóndor, and Trigo 3, the ratio was unchanged, and for Debeira and Pavón 76, the ratio increased. Cultivars with relatively stable grain characteristics and protein molecular weight distribution were identified and could be used as genetic sources for improving resistance to heat stress.
650 $aCALIDAD
650 $aENFERMEDADES DE LAS PLANTAS
650 $aFACTORES AMBIENTALES
650 $aFISIOLOGÍA VEGETAL
650 $aFITOMEJORAMIENTO
650 $aTRITICUM
653 $aGRAIN CHARACTERISTIC
653 $aHEAT STRESS
653 $aPROTEIN MOLECULAR WEIGHT
700 1 $aPETERSON, C.J.
700 1 $aDALLA RIZZA, M.
700 1 $aDÍAZ DELLA VALLE, P.
700 1 $aVÁZQUEZ, D.
700 1 $aIBAÑEZ, W.
700 1 $aROSS, A.
773 $tln: International Wheat Conference, 7., 27 Nov-2 Dec 2005, Mar del Plata, AR Buck, H.T.; Nisi, J.E.; Salomón, N., ed. Wheat production in stressed environments : proceedings. Dordrecht: Springer, 2007.
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