TY  - JOUR
AU  - Paul, Kenny
AU  - Pauk, Janos
AU  - Kondić-Špika, Ankica
AU  - Grausgruber, Heinrich
AU  - Allahverdiyev, Tofig
AU  - Sass, Laszlo
AU  - Vass, Imre
PY  - 2019
UR  - http://fiver.ifvcns.rs/handle/123456789/1924
AB  - In the present study we analyzed the responses of wheat to mild salinity and drought with special emphasis on the so far unclarified interaction of these important stress factors by using high-throughput phenotyping approaches. Measurements were performed on 14 genotypes of different geographic origin (Austria, Azerbaijan, and Serbia). The data obtained by non-invasive digital RGB imaging of leaf/shoot area reflect well the differences in total biomass measured at the end of the cultivation period demonstrating that leaf/shoot imaging can be reliably used to predict biomass differences among different cultivars and stress conditions. On the other hand, the leaf/shoot area has only a limited potential to predict grain yield. Comparison of gas exchange parameters with biomass accumulation showed that suppression of CO2 fixation due to stomatal closure is the principal cause behind decreased biomass accumulation under drought, salt and drought plus salt stresses. Correlation between grain yield and dry biomass is tighter when salt- and drought stress occur simultaneously than in the well-watered control, or in the presence of only salinity or drought, showing that natural variation of biomass partitioning to grains is suppressed by severe stress conditions. Comparison of yield data show that higher biomass and grain yield can be expected under salt (and salt plus drought) stress from those cultivars which have high yield parameters when exposed to drought stress alone. However, relative yield tolerance under drought stress is not a good indicator of yield tolerance under salt (and salt plus drought) drought stress. Harvest index of the studied cultivars ranged between 0.38 and 0.57 under well watered conditions and decreased only to a small extent (0.37-0.55) even when total biomass was decreased by 90% under the combined salt plus drought stress. It is concluded that the co-occurrence of mild salinity and drought can induce large biomass and grain yield losses in wheat due to synergistic interaction of these important stress factors. We could also identify wheat cultivars, which show high yield parameters under the combined effects of salinity and drought demonstrating the potential of complex plant phenotyping in breeding for drought and salinity stress tolerance in crop plants.
PB  - Frontiers Media Sa, Lausanne
T2  - Frontiers in Plant Science
T1  - Co-occurrence of Mild Salinity and Drought Synergistically Enhances Biomass and Grain Retardation in Wheat
VL  - 10
DO  - 10.3389/fpls.2019.00501
ER  - 

@article{
author = "Paul, Kenny and Pauk, Janos and Kondić-Špika, Ankica and Grausgruber, Heinrich and Allahverdiyev, Tofig and Sass, Laszlo and Vass, Imre",
year = "2019",
abstract = "In the present study we analyzed the responses of wheat to mild salinity and drought with special emphasis on the so far unclarified interaction of these important stress factors by using high-throughput phenotyping approaches. Measurements were performed on 14 genotypes of different geographic origin (Austria, Azerbaijan, and Serbia). The data obtained by non-invasive digital RGB imaging of leaf/shoot area reflect well the differences in total biomass measured at the end of the cultivation period demonstrating that leaf/shoot imaging can be reliably used to predict biomass differences among different cultivars and stress conditions. On the other hand, the leaf/shoot area has only a limited potential to predict grain yield. Comparison of gas exchange parameters with biomass accumulation showed that suppression of CO2 fixation due to stomatal closure is the principal cause behind decreased biomass accumulation under drought, salt and drought plus salt stresses. Correlation between grain yield and dry biomass is tighter when salt- and drought stress occur simultaneously than in the well-watered control, or in the presence of only salinity or drought, showing that natural variation of biomass partitioning to grains is suppressed by severe stress conditions. Comparison of yield data show that higher biomass and grain yield can be expected under salt (and salt plus drought) stress from those cultivars which have high yield parameters when exposed to drought stress alone. However, relative yield tolerance under drought stress is not a good indicator of yield tolerance under salt (and salt plus drought) drought stress. Harvest index of the studied cultivars ranged between 0.38 and 0.57 under well watered conditions and decreased only to a small extent (0.37-0.55) even when total biomass was decreased by 90% under the combined salt plus drought stress. It is concluded that the co-occurrence of mild salinity and drought can induce large biomass and grain yield losses in wheat due to synergistic interaction of these important stress factors. We could also identify wheat cultivars, which show high yield parameters under the combined effects of salinity and drought demonstrating the potential of complex plant phenotyping in breeding for drought and salinity stress tolerance in crop plants.",
publisher = "Frontiers Media Sa, Lausanne",
journal = "Frontiers in Plant Science",
title = "Co-occurrence of Mild Salinity and Drought Synergistically Enhances Biomass and Grain Retardation in Wheat",
volume = "10",
doi = "10.3389/fpls.2019.00501"
}

Paul, K., Pauk, J., Kondić-Špika, A., Grausgruber, H., Allahverdiyev, T., Sass, L.,& Vass, I.. (2019). Co-occurrence of Mild Salinity and Drought Synergistically Enhances Biomass and Grain Retardation in Wheat. in Frontiers in Plant Science
Frontiers Media Sa, Lausanne., 10.
https://doi.org/10.3389/fpls.2019.00501

Paul K, Pauk J, Kondić-Špika A, Grausgruber H, Allahverdiyev T, Sass L, Vass I. Co-occurrence of Mild Salinity and Drought Synergistically Enhances Biomass and Grain Retardation in Wheat. in Frontiers in Plant Science. 2019;10.
doi:10.3389/fpls.2019.00501 .

Paul, Kenny, Pauk, Janos, Kondić-Špika, Ankica, Grausgruber, Heinrich, Allahverdiyev, Tofig, Sass, Laszlo, Vass, Imre, "Co-occurrence of Mild Salinity and Drought Synergistically Enhances Biomass and Grain Retardation in Wheat" in Frontiers in Plant Science, 10 (2019),
https://doi.org/10.3389/fpls.2019.00501 . .