Journal Article

Quality of winter wheat in relation to heat and drought shock after anthesis

Li, Z.,CSIRO Food Future Flagship, North Ryde (Australia), Balla, K.,Agricultural Research Inst. of the Hungarian Academy of Sciences, Martonvasar (Hungary), Rakszegi, M.,Agricultural Research Inst. of the Hungarian Academy of Sciences, Martonvasar (Hungary), Veisz, O.,Agricultural Research Inst. of the Hungarian Academy of Sciences, Martonvasar (Hungary), Bencze, S.,Agricultural Research Inst. of the Hungarian Academy of Sciences, Martonvasar (Hungary), Bekes, F.,CSIRO Food Future Flagship, North Ryde (Australia)

2011

Overview

This study investigated the effect of high temperature and drought (during grain-filling) on the quality and components yield of five winter wheat varieties. Drought and drought + heat were found to have a much greater influence on the yield and quality than heat stress alone. Averaged over the varieties, the yield losses were 57% after drought, 76% after drought + heat, and only 31% after heat stresses. The reductions in the unextractable polymeric protein fraction and glutenin-to-gliadin ratio indicated a poorer grain yield quality, despite the higher protein content. Quality deterioration was observed after drought or drought + heat, while high temperatures alone resulted in no change or in a better ratio of protein components. A significant negative correlation was observed between starch granule size and relative protein content after drought.

• Publisher: Czech Academy of Agricultural Sciences (CAAS),Czech Academy of Agricultural Sciences
• Subject: ABSORCION / ABSORPTION / AGUA / ALBUMINAS / ALBUMINE / ALBUMINS / ALMIDON / AMIDON / Bakery products / Baking / BLE / CALIDAD / CHOC / CONTENIDO DE HUMEDAD / CONTENIDO PROTEICO / CROP YIELD / CULTIVOS DE INVIERNO / CULTURE D'HIVER / Drought / DROUGHT STRESS / EAU / ESTRES DE SEQUIA / ESTRES TERMICO / GENOTIPOS / GENOTYPE / GENOTYPES / Gliadin / GLOBULINAS / GLOBULINE / GLOBULINS / Glutenin / glutenin-to-gliadin ratio / GLUTENINAS / GLUTENINE / GLUTENINS / GRAIN / GRAINE / GRANOS / Granular materials / HARVEST INDEX / Heat / HEAT STRESS / Heat tolerance / High temperature / High temperature effects / HINCHAMIENTO DE LA SEMILLA / http://www.fao.org/aos/agrovoc#c_10176 / http://www.fao.org/aos/agrovoc#c_11488 / http://www.fao.org/aos/agrovoc#c_24033 / http://www.fao.org/aos/agrovoc#c_247 / http://www.fao.org/aos/agrovoc#c_24854 / http://www.fao.org/aos/agrovoc#c_24917 / http://www.fao.org/aos/agrovoc#c_24993 / http://www.fao.org/aos/agrovoc#c_26785 / http://www.fao.org/aos/agrovoc#c_27 / http://www.fao.org/aos/agrovoc#c_3225 / http://www.fao.org/aos/agrovoc#c_3279 / http://www.fao.org/aos/agrovoc#c_3346 / http://www.fao.org/aos/agrovoc#c_36490 / http://www.fao.org/aos/agrovoc#c_36510 / http://www.fao.org/aos/agrovoc#c_4886 / http://www.fao.org/aos/agrovoc#c_6222 / http://www.fao.org/aos/agrovoc#c_6251 / http://www.fao.org/aos/agrovoc#c_6400 / http://www.fao.org/aos/agrovoc#c_6946 / http://www.fao.org/aos/agrovoc#c_7369 / http://www.fao.org/aos/agrovoc#c_7951 / http://www.fao.org/aos/agrovoc#c_8288 / http://www.fao.org/aos/agrovoc#c_8309 / http://www.fao.org/aos/agrovoc#c_8373 / INDICE DE COSECHA / INDICE DE RECOLTE / MOISTURE CONTENT / PESO DE LAS SEMILLAS / POIDS DES SEMENCES / Polymers / PROLAMINAS / PROLAMINE / PROLAMINES / PROTEIN CONTENT / Proteins / QUALITE / QUALITY / REMPLISSAGE DU GRAIN / RENDEMENT DES CULTURES / RENDIMIENTO DE CULTIVOS / SEED FILLING / SEED WEIGHT / SEEDS / SEMILLA / SHOCK / STARCH / starch granule size / STRESS DU A LA SECHERESSE / STRESS THERMIQUE / TENEUR EN EAU / TENEUR EN PROTEINES / TRIGO / TRITICUM AESTIVUM / VOLUME / VOLUMEN / WATER / Wheat / WHEATS / WINTER CROPS / Winter wheat