Evaluation of morphological traits of wheat varieties at germination stage under salinity stress

Abstract

Salinity stress is one of the major plant growth-limiting factors in agriculture. It causes ionic imbalance, thus decrease the growth and yield attributes of crops especially wheat. Seedling stage is considered as one of the most sensitive stages under salinity stress. Survival of seeds at seedling stage can overcome the adverse impacts of salinity stress to some extent. Selection of salt tolerant varieties in seedling stage is considered as an effective strategy. Hence, current study was conducted to examine the seed germination responses of four wheat varieties under different levels of salinity. The wheat varieties such as ‘Rakhshan’, ‘Sirvan’, ‘Pishgam’ and ‘Heidari’ were grown and four salinity levels of 0, 4, 8 and 12 dS/m were applied under completely randomized design. The varieties such as ‘Sirvan’, ‘Rakhshan’ and ‘Heidari’ showed significant response for germination compared to ‘Pishgam’ at 12 dS/m salinity. Furthermore, the variety ‘Rakhshan’ showed significantly higher germination rate (20.3%), higher root length (33.4%) and higher shoot length (84.3%) than ‘Pishgam’, ‘Sirvan’ and ‘Sirvan’ respectively. However, contrasting results were obtained for dry weight of seedlings where 12.2% increase was observed in ‘Pishgam’ over ‘Rakhshan’ at 12 dS/m salinity that might be due to higher capability to uptake of Na and Cl ions. In conclusion, ‘Rakhshan’ wheat variety proved to be the most salinity tolerant as it grew better under saline soil conditions. More investigations at field level are recommended to declare ‘Rakhshan’ as salinity tolerant cultivar.

Growth, Physiological and Biochemical Response of Chickpea Cultivars to Different Levels of Salinity Stress

“…The reduction in RL and SL under SS might be due to the reduced availability of water owing to osmotic stress caused by SS (Sultan et al, 2021). SS decreased the RFW which could be due to a reduction in the hydrolysis of food reservoirs and its movement to growing plant parts (Gholizadeh et al, 2021). The results indicated that SS imposed a negative impact on photosynthetic pigments (Table 3).…”

Cell-free supernatant of Devosia sp. (strain SL43) mitigates the adverse effects of salt stress on soybean (Glycine max L.) seed vigor index

“…Salinity impairs many plant functions, from the seed germination stage to final seed production; seedling emergence at the initiation phase of the lifecycle of plants is highly susceptible to salinity ( Naamala et al., 2022 ; Yaghoubian et al., 2022a ). However, once the plants are overcome the seedling stage, they are better able to cope with the adverse consequences of salinity stress ( Gholizadeh et al., 2021 ; Shah et al., 2022 ).…”

Retraction: Evaluation of morphological traits of wheat varieties at germination stage under salinity stress

“…The PLOS ONE Editors retract this article [ 1 ] because it was identified as one of a series of submissions for which we have concerns about authorship, competing interests, and peer review. We regret that the issues were not addressed prior to the article’s publication.…”