Salinity in soil and water is one of the environmental factors that severely hinder the crop growth and production particularly in arid and semi-arid regions. A pot experiment was conducted to investigate the impact of salinity levels (1.5 dS m-1, 3.5 dS m-1, 7.5 dS m-1 and 11.5 dS m-1) on emergence, growth and biochemical traits of moringa landraces under completely randomized design having three replications. Four landraces of Moringa oleifera (Faisalabad black seeded moringa [MFB], Patoki black seeded moringa [MPB], Faisalabad white seeded moringa [MFW] and Rahim Yar Khan black seeded moringa [MRB]) were selected for experimentation. All the salinity levels significantly affected the emergence parameters (time to emergence start, time to 50% emergence, mean emergence time, emergence index and final emergence percentage) of moringa landraces. However, 1.5 dS m-1 and 3.5 dS m-1 were found more favorable. Higher salinity levels (7.5 dS m-1 and 11.5 dS m-1) significantly minimized the root surface area, root projected area, root volume and root density as compared to 1.5 dS m-1, 3.5 dS m-1. Number of branches, leaves, leaflets and leaf length were also adversely affected by 7.5 dS m-1 and 11.5 dS m-1. Maximum seedling fresh and dry weights, and seedling length were recorded at 1.5 dS m-1 followed by 3.5 dS m-1. Chlorophyll a and b contents, carotenoids and membrane stability index were also observed highest at salinity level of 1.5 dS m-1. In case of moringa landraces, MRB performed better regarding emergence attributes, growth parameters, and biochemical analysis followed by MFW as compared to MFB and MPB. Moringa landraces i.e. MRB and MFW were found more tolerant to salinity stress as compared to MFB and MPB.

Department of Agricultural Engineering Khwaja Fareed University of Engineering and Information Technology Rahim Yar Khan Pakistan

Department of Agrochemistry Soil Science Microbiology and Plant Nutrition Faculty of AgriSciences Mendel University in Brno Brno Czech Republic

Department of Agronomy MNS University of Agriculture Multan Pakistan

Department of Agronomy PMA Shah Arid Agriculture University Rawalpindi Pakistan

Department of Agronomy University of Agriculture Faisalabad Pakistan

Department of Botany and Microbiology College of Science King Saud University Riyadh Saudi Arabia

Department of Botany University of Agriculture Faisalabad Pakistan

National Agricultural Research Centre Islamabad Pakistan

Pedologiejh spol s r o Brno Czech Republic

Soil and Water Testing Laboratory for Research Dera Ghazi Khan Pakistan

Odvolání publikace

PLoS One. 2022 Aug 31;17(8):e0273535. doi: 10.1371/journal.pone.0273535. PubMed

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