Plant Growth of Curly Kale Under Salinity Stress

Abstract

Ornamental plants growing in urban areas are exposed to soil salinity that negatively affects their quality. Identifying species that retain high ornamental value despite salt stress is therefore of high practical importance. Curly kale (Brassica oleracea L. var. sabellica L.) is an attractive plant with leaves of both edible and ornamental character. The aim of the study was to evaluate a response of ornamental curly kale to different concentrations of NaCl. The study material was 'Scarlet' cultivar. The plants were grown in pots in a plastic tunnel. They were irrigated with NaCl solution at the following concentrations: 50, 100, 200, 400, and 800 mM mmol ·dm -3 . NaCl treatment resulted in a significant increase in pH and electrical conductivity (EC) of the substrate. Salt stress significantly affected plant growth and number, width and length of leaves, and the effects depended on NaCl concentration. Fifteen days after the salt supply ceased, relative chlorophyll content in leaves (SPAD) decreased due to NaCl treatment in a concentration-dependent manner. Treatments with 200, 400, and 800 mmol·dm -3 NaCl reduced stomatal conductance, and the changes were greater on the 5th day following the stress cessation than on the 15th day. Irrigation with a 200, 400, and 800 mmol·dm -3 NaCl solution negatively affected plant bonitation score. The plants treated with 50 i 100 mmol·dm -3 NaCl were not significantly different visual score from the control plants.

Assesment and effect of normal and saline irrigation on growth parameters of maize cultivar jasaura village of district Kannauj, U.P.

“…The plant girths were found decreasing trends in all respective treatments except treatment T1 in which treatment plant girth was found increasing manner from 2016 to 2017. Similar trends were observed by Salachna et al, (2017) [20] , Awad et al, (2014) [3] , Aderoju and Festus (2013) [1] , Mojid (2013) [16] , Jouyban (2012) [10] . [20] , Awad et al, (2014) [3] , Aderoju and Festus (2013) [1] , Mojid (2013) [16] , Jouyban (2012) [10] , Kader (2010) [11] .…”

“…The analysis of collected water samples were done by using AR grade regents, double distilled and adopted standard method to examinations. [6] , Jia et al, (2018) [9] , Salachna et al, (2017) [20] .…”

Salinity Tolerance of Four Hardy Ferns from the Genus Dryopteris Adans. Grown under Different Light Conditions

“…Excessive substrate salinity causing salt stress is one of the most common abiotic stresses that negatively affect the quality of ornamental plants [4]. Exceeding tolerance threshold for salt triggers numerous adverse changes in plant growth and development [6,7]. Too high salinity limits water availability, lowers turgor and leads to inhibition of cell elongation growth, tissue necrosis, yellowing, drying and falling of leaves [8].…”

Exogenous Salicylic acid Ameliorates the Adverse Effects of Salt Stress on Antioxidant System in Rosmarinus officinalis L.

“…It causes water deficit, ion toxicity, and nutrient deficiency, leading to growth, yield and development reduction, and even to plant death (Gezi et al, 2013). Additionally, it has a negative impact on photosynthesis, water management and enzymatic activity (Salachna et al, 2017). It has been reported that salinity reduces plant productivity by reducing plant growth during the phase of osmotic stress and subsequently by inducing leaf senescence during the phase of toxicity after excessive salt accumulation in oxidative damage of lipids, proteins, and nucleic acids (Abbaspour, 2012 andAbdul Qados, 2015), resulting in the formation of reactive oxygen species(ROS) (Sudhir & Murthy, 2004;Nazar et al, 2011;He et al, 2014 andLi et al, 2014).…”