Breeding for enhanced drought resistance in barley and wheat - drought-associated traits, genetic resources and their potential utilization in breeding programmes

To chci

Drought represents the most devastating abiotic stress factor worldwide. It severely limits plant growth and development as well as agricultural characteristics including the final yield. The aim of this review is to summarise recent results of the breeding of barley (Hordeum vulgare) and wheat (Triticum aestivum; T. durum) for improved resistance to drought stress. First, drought-associated terms and definitions are outlined and plant strategies to cope with drought are presented. A brief overview of plant physiological mechanisms involved in water uptake and release is provided. Photosynthesis-related parameters (CO2 availability and associated features such as ribulose-1,5-bisphosphate carboxylase/oxygenase activity, 13C discrimination activity, water use efficiency) are discussed due to the crucial role of plant leaf stomata in both photosynthesis and water management. The second part describes the present state of research on drought resistance-associated traits in barley and wheat. Different strategies of plant water management aimed at maximising the final yield under various types of drought stress are discussed. Possibilities of the detection, identification and characterization of quantitative trait loci (QTLs) in barley and wheat germplasm are discussed and the future approaches to breeding for enhanced drought resistance as a complex physiological and agronomical trait are outlined. … celý popis

Podrobná bibliografie

Hlavní autor

Klára Kosová, 1979-

Další autoři

Pavel Vítámvás, Milan Oldřich Urban, Jana Kholová, Ilja Tom Prášil, 1951-

Typ dokumentu

Články

Fyzický popis

2 ilustrace

Publikováno v

Czech Journal of Genetics and Plant Breeding. -- ISSN 1212-1975. -- Roč. 50, č. 4 (2014), s. 247-261

Témata

CEREAL CROPS

CULTIVATION

SITE FACTORS

CLIMATIC FACTORS

Global warming

CLIMATIC CHANGE

PRECIPITATION DEFICIT

DROUGHT RESISTANCE

PLANT BREEDING

PLANT PHYSIOLOGY

HORDEUM VULGARE

TRITICUM AESTIVUM

TRITICUM DURUM

PLANT SOIL RELATIONS

PLANT WATER RELATIONS

HYDROLOGICAL CYCLE

WATER UPTAKE

ROOTS

Plant morphology

EVAPOTRANSPIRATION

SHOOTS

STOMATA

Water use efficiency

PLANT ESTABLISHMENT

SHADE

WEEDS

BIOLOGICAL COMPETITION

BIOLOGICAL DEVELOPMENT

quantitative trait loci

GENETIC MAPS

obilniny

kultivace

faktory prostředí

klimatické faktory

globální oteplení

změna klimatu

srážkový deficit

odolnost k suchu

šlechtění rostlin

fyziologie rostlin

ječmen setý

pšenice obecná

Triticum durum

vztahy rostlina-půda

vztahy rostlina-voda

hydrologický cyklus

příjem vody

kořeny

morfologie rostlin

evapotranspirace

odnože

průduchy

účinnost využití vody

zapojení porostu

stín

plevele

biologická konkurence

biologický vývoj

lokusy kvantitativních znaků

genetické mapování

review

Popis jednotky

2 tabulky

Bibliografie

Literatura na straně 258-261,