Potential of Biochar Application to Mitigate Salinity Stress in Eggplant

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dc.creatorParkash, Ved (TTU)
dc.creatorSingh, Sukhbir (TTU)
dc.date.accessioned2022-06-08T19:03:11Z
dc.date.available2022-06-08T19:03:11Z
dc.date.issued2020
dc.description© American Society for Horticultural Science 2020. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.en_US
dc.description.abstractSalinity stress is among the major abiotic stresses prevailing in arid and semiarid areas such as the southern high plains of the United States. In these areas, both declining quality of groundwater and cultivation practices have resulted in increased accumulation of salts in the root zone. The occurrence of excessive salts in the root zone is detrimental for plant growth and economic yield. Recently, biochar has received a great consideration as a soil amendment to mitigate the detrimental impacts of salinity stress. However, the effectiveness of biochar to mitigate the salinity stress depends on the feedstock type, pyrolysis temperature and time, soil type and properties, and plant species. Therefore, a pot experiment in a greenhouse was conducted to 1) examine the effects of salinity stress on physiology, shoot and root growth, and yield of eggplant (Solanum melongena L.), and 2) evaluate the potential of hardwood biochar and softwood biochar to mitigate the damaging effects of salinity stress on eggplant. The experiment was conducted in a split-plot design with three salinity levels of irrigation water [S0 (control, 0.04 dS·m−1), S1 (2 dS·m−1), and S2 (4 dS·m−1)] as main-plot factor and three biochar treatments [B0 (control, non-biochar), Bh (hardwood biochar), and Bs (softwood biochar)] as subplot factor with four replications. Results showed that stomatal conductance (gS) and photosynthesis rate decreased significantly, while leaf temperature and electrolyte leakage increased significantly with increase in irrigation water salinity levels. Root growth (root length density and root surface area density), shoot growth (plant height, stem diameter, and leaf area), and yield of eggplant declined with increase in levels of salinity stress. Biochar application helped to enhance gS and photosynthesis rate, and to decrease leaf temperature and electrolyte leakage in leaf tissues of plants. This resulted in better root growth, shoot growth, and fruit yield of eggplant in treatments amended with biochar than non-biochar (control) treatment. There was no significant difference in the effect of two types of biochars (hardwood and softwood biochar) on physiology, root growth, shoot growth, and yield of eggplant. Therefore, it can be concluded that softwood and hardwood biochars could be used to minimize the detrimental impacts of salinity stress in eggplant.en_US
dc.identifier.citationParkash, V., & Singh, S. (2020). Potential of Biochar Application to Mitigate Salinity Stress in Eggplant, HortScience horts, 55(12), 1946-1955. Retrieved Jun 8, 2022 https://doi.org/10.21273/HORTSCI15398-20en_US
dc.identifier.urihttps://doi.org/10.21273/HORTSCI15398-20
dc.identifier.urihttps://hdl.handle.net/2346/89494
dc.language.isoengen_US
dc.subjectSalinity Stressen_US
dc.subjectBiocharen_US
dc.subjectPhotosynthesisen_US
dc.subjectStomatal Conductanceen_US
dc.subjectLeaf Temperatureen_US
dc.subjectShoot Growthen_US
dc.subjectRoot Growthen_US
dc.titlePotential of Biochar Application to Mitigate Salinity Stress in Eggplanten_US
dc.typeArticleen_US

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