Determinants of barley grain yield in a wide range of Mediterranean environments

Francia, Enrico; Tondelli, Alessandro; Rizza, Fulvia; Badeck, Franz-W.; Nicosia, O. Li Destri; Akar, Taner; Grando, S.; Al-Yassin, Adnan; Benbelkacem, A.; Thomas, William; Eeuwijk, Fred van; Romagosa, I.; Stanca, A. M.; Pecchioni, Nicola

doi:10.1016/j.fcr.2010.09.010

Cited by 52 publications

(93 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, the current study confirmed this by the presence of variation amongst the studied 11 barley genotypes. The effects of water stress on the yield reduction of barley have been well documented [28,29].The present study showed that yield and yield components were significantly reduced in all tested genotypes due to water deficit during tillering and stem elongation stages (e.g., yield reduced by 66% and 54% at SS and SE, respectively; Table 4). These results indicated that drought stress during the pre-anthesis period reduced grain yield by decreasing the number of fertile spikes and grains per plant (Table 4).…”

Section: Resultsmentioning

confidence: 62%

“…Even though the number of fertile florets was not verified in the current study, the reduction in grain number in SS and SE plants revealed that significant decline in the final grain number was credited to floret abortion occurred in the pre anthesis phase [29]. Under fluctuated Mediterranean conditions, yield and stability were highly related to the effect of genotype (G), environmental condition (E) and their interaction (G X E) [28]. Main G X E interaction effect can be anticipated when there is a large difference between genotypes in certain physiological traits showing stress resistant and/or large variation between environments for occurrence of the same stress [28].…”

Section: Resultsmentioning

confidence: 96%

“…Furthermore, the drought treatment mean squares were nearly two times more than variation in both genotype and genotype X environment interaction (G + G X E) ( Table 3). Many reports demonstrated that that grain yield is more limited by grain number rather than grain weight in wheat and barley [28,32]. Grain number is determined during the pre-anthesis growth, grain set is affected by the vital task controlled by the timing of flowering in defining the wide adaptation of certain genotype and hence for grain yield determination.…”

Section: Resultsmentioning

confidence: 99%

“…Under fluctuated Mediterranean conditions, yield and stability were highly related to the effect of genotype (G), environmental condition (E) and their interaction (G X E) [28]. Main G X E interaction effect can be anticipated when there is a large difference between genotypes in certain physiological traits showing stress resistant and/or large variation between environments for occurrence of the same stress [28]. Present study showed that yield variation was largely explained by variation in the treatment (E; environment, i.e., drought; Tables 3 and 4).…”

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Impact of Pre-Anthesis Water Deficit on Yield and Yield Components in Barley (Hordeum vulgare L.) Plants Grown under Controlled Conditions

et al. 2016

View full text Add to dashboard Cite

Drought at pre-anthesis stages can influence barley growth and results in yield losses. Therefore, it is important to understand how drought at pre-anthesis can affect different traits associated with yield reduction in barley. The objective of this study was to understand the relevance of the genetic background of major flowering time genes in barley plants subjected to pre-anthesis drought and its impact on yield and yield components. A glasshouse experiment using a Randomized Complete Block Design was conducted to investigate the effect of drought and its timing on yield and yield components on eleven barley genotypes, which were selected to represent genetic diversity of major flowering time genes (PPDH1, PPDH2, HvVrn1, HvVrn2 and HvVrn3). Barley plants were exposed to three water regimes, non-stressed and stressed, which was applied at two pre-anthesis growth stages, tillering (SS) and stem elongation (SE). Results identified differences among genotypes in all measured traits. Grain yield, grain number and "thousand kernel weight" were reduced in all genotypes due to drought, irrespective of the growth stage. Early flowering genotypes had better performance as reflected in higher yield compared with late flowering genotypes. Results verified the fundamental importance of early flowering to improve productivity in response to pre-anthesis drought. The results of this study can help in selecting barley lines for future breeding purposes with improved resilience to drought conditions in Mediterranean environments.

show abstract

Section: Resultsmentioning

confidence: 62%

Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Impact of Pre-Anthesis Water Deficit on Yield and Yield Components in Barley (Hordeum vulgare L.) Plants Grown under Controlled Conditions

et al. 2016

View full text Add to dashboard Cite

show abstract

“…7d) adapts crop phenology to the seasonal water availability to avoid severe terminal stress during grain filling (e.g. Thomson et al 1997;Francia et al 2011). High early vigour furthermore provides quick canopy coverage, reducing evaporation as a principal loss component in storage-driven ecosystems (Turner 2004;Slafer et al 2005; cf.…”

Section: Plant Resistance To Droughtmentioning

confidence: 99%

Management of crop water under drought: a review

Bodner

Nakhforoosh

Kaul

2015

Agron. Sustain. Dev.

429

234

View full text Add to dashboard Cite

Drought is a predominant cause of low yields worldwide. There is an urgent need for more water efficient cropping systems facing large water consumption of irrigated agriculture and high unproductive losses via runoff and evaporation. Identification of yield-limiting constraints in the plant-soil-atmosphere continuum are the key to improved management of plant water stress. Crop ecology provides a systematic approach for this purpose integrating soil hydrology and plant physiology into the context of crop production. We review main climate, soil and plant properties and processes that determine yield in different water-limited environments. From this analysis, management measures for cropping systems under specific drought conditions are derived. Major findings from literature analysis are as follows. (1) Unproductive water losses such as evaporation and runoff increase from continental in-season rainfall climates to storage-dependent winter rainfall climates. Highest losses occur under tropical residual moisture regimes with short intense rainy season. (2) Sites with a climatic dry season require adaptation via phenology and water saving to ensure stable yields. Intermittent droughts can be buffered via the root system, which is still largely underutilised for better stress resistance. (3) At short-term better management options such as mulching and date of seeding allow to adjust cropping systems to site constraints. Adapted cultivars can improve the synchronisation between crop water demand and soil supply. At long term, soil hydraulic and plant physiological constraints can be overcome by changing tillage systems and breeding new varieties with higher stress resistance. (4) Interactions between plant and soil, particularly in the rhizosphere, are a way towards better crop water supply. Targeted management of such plant-soil interactions is still at infancy.We conclude that understanding site-specific stress hydrology is imperative to select the most efficient measures to mitigate stress. Major progress in future can be expected from crop ecology focussing on the management of complex plant (root)-soil interactions.

show abstract