Screening Tomato Genotypes for Salt Tolerance

In vitro evaluation of tomato (Lycopersicon esculentum Mill.), chilli (Capsicum annum L.), cucumber (Cucumis sativus L.) and Bhendi (Abelmoschus esculentus L.) for salinity stress

“…A gradual reduction in fresh and dry weight (g) was recorded irrespective of crops. Similar results reported in tomato (Kumar et al, 2017; Seth, 2018) [9,13] , in chilli (Kabir Howlader et al, 2018) [18] and in bhendi (Abbas et al, 2014) [12] .…”

“…However, there was no germination in T 4 . The germination percentage of tomato was highly influenced by salt stress (Devi & Arumugam, 2019; Kumar et al, 2017) [8,9] . When the salinity concentration increases, the NaCl makes water unavailable to seeds, affecting the imbibition process of the seed germination.…”

Principal component analysis approach for comprehensive screening of salt stress-tolerant tomato germplasm at the seedling stage

“…In the current study, the tolerant genotypes (Arka Rakshak and YVU-2) were able to maintain their biomass and therefore capable to overcome salt stress. Kumar et al (2017) reported Arka Rakshak showed better germination percentage, germination rate, shoot length, and root length than other germplasm at four different concentrations of NaCl (50, 75, 100, and 150 mM) and hence, in the present investigation we selected the Arka Rakshak germplasm as a check. At 0.12 M and 0.20 M salt stress, the root length, shoot length, fresh weight, and dry weight variables of investigated tomato germplasms got adversely affected with varying levels.…”

“…Therefore, an efficient screening method for salt-tolerant germplasms can perhaps aid in the development of salt-tolerant cultivars and these varieties may grow better in the saltaffected region (Shen et al 1997;Winicov 1998). Screening of tomato genotypes for salt tolerance under different salt stress has been carried out by many investigators and notable difference in their tolerance has been reported (Kumar et al 2017;Rashed et al 2016;Fariduddin et al 2012). Nevertheless, breeding programs to develop salt-tolerant varieties have been dependent on the study of complex genetics and physiological traits and lack of proficient selection methods was noted which includes physiological traits (Singh et al 2012).…”

“…Seed germination and seedling establishment are the most sensitive stages for adaptation to salt stress during the life cycle of plant development (Donohue et al 2010). Research on understanding the mechanisms of salt tolerance has long been a priority for unravelling the complex salt tolerance phenomenon (Kumar et al 2017). Under stress conditions, various parameters have been considered as key indicators and their rate of change has been efficiently exploited in the assessment of plant's salt stress tolerance (Kumar et al 2015;Singh et al 2015).…”