Agrobiodiversity for Adaptive and Yield Traits in Romanian and Italian Barley Cultivars across Four Continental Environments

Within temperate climates the frequency and severity of high and low temperature stresses vary with continentality. The current study reports on the assessment of the performance of 49 barley cultivars across four environments. The cultivars stem from 50 years of breeding activities in Romania and I...

Full description

Saved in:
Bibliographic Details
Published inAgronomy (Basel) Vol. 8; no. 6; p. 79
Main Authors Rizza, Fulvia, Vasilescu, Liliana, Badeck, Franz-W., Morcia, Caterina, Alberici, Renzo, Bude, Alexandru, Alionte, Eliana, Petcu, Eugen, Baronchelli, Marina, Faccini, Nadia, Pagani, Donata, Terzi, Valeria
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.06.2018
Subjects
Adaptation
Agricultural production
Agrobiodiversity
Barley
Breweries
Cereals
Climate change
Crop yield
Cultivars
Damage tolerance
Drought
Efficiency
Environmental conditions
Experiments
Feeds
Freezing
Frost
Frost damage
Genes
Genetic diversity
Genotypes
Heat
High temperature
Laboratory tests
Low temperature
Nitrogen
Physiology
Plant protection
R&D
Research & development
Seasons
Snow cover
Stresses
Studies
Wheat
Italy
Romania
Online AccessGet full text

Cover

More Information
Summary:Within temperate climates the frequency and severity of high and low temperature stresses vary with continentality. The current study reports on the assessment of the performance of 49 barley cultivars across four environments. The cultivars stem from 50 years of breeding activities in Romania and Italy, in two temperate climates that differ in continentality. The plants were phenotyped through stress monitoring, measurements of yield and yield related traits as well as laboratory stress tolerance tests. Genotypes for alleles of vernalisation and photoperiod genes were determined. These genes were significantly associated with frost damage in the field and frost tolerance in laboratory tests. Grain yield (GY) was more closely correlated with the number of grain sinks than with the degree of grain filling indicating major limitations in the vegetative growth phase and during grain initiation. High temperature stress during the grain filling phase significantly reduced GY. Frost damage due to freezing temperatures below −10 °C when plants were not protected by snow cover significantly reduced GY of sensitive cultivars. The characterisation of environmental cues that cause stresses with yield penalties as well as the susceptibility of genetically different cultivars lay the ground for future targeted selection.
ISSN:2073-4395
2073-4395
DOI:10.3390/agronomy8060079