Assessment of salinity tolerance in tomato cultivars grown in Maharashtra, India.

Abstract

The present study was undertaken to assess the genotypic variation for salinity tolerance in five commercial cultivars of tomato (Solanum lycopersicum L.) grown in Maharashtra. Growth parameters such as shoot length, root length, fresh weight and dry weight were assessed at control, 50 mM and 100 mM NaCl with Hoagland's solution. The shoot/root length and fresh/dry weight declined at 100 mM stress. Proline accumulated as a consequence of salt stress. On the basis of growth parameters and proline accumulation cultivars Abhinav and Rohini were tolerant, TO1389 and N2535 moderately tolerant and Naina sensitive towards salinity stress.

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

“…In this experiment, all the crops except chilli increase in root to shoot ratio were observed with increase in salinity level. Similar results reported in tomato (Seth, 2018; Seth & Kendurkar, 2015) [13,14] . The shoot growth was reduced due to salinity induced water deficit so a greater proportion of plants assimilates can be allocated to the root system which supports its growth hence the ratio of root to shoot growth increases (Taiz and Zeiger, 2010, Maggio et al, 2007and Parida and Das, 2005.…”

“…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] .…”