MANOHAR PRASAD, DVAJRASRI, L2017-02-032017-02-031992http://krishikosh.egranth.ac.in/handle/1/5810000049A 1991-92 pot culture experiment was conducted during kharif -1 on sandy soil with an ECe of 0.75 dsm , collected from Agricultural College Farm Bapatla, to study the salt tolerance of ten tomato genotypes viz., Arka Abha, Punjab Chhuhara, Bapatla Local, Arka Ashish, Pusa Gaurav, Punjab Kesari, Pusa Early Dwarf, Pusa Ruby and Sl-120. Five salin- 1 ity levels (2, 4, 6, 8, 10 dsm ) were developed in the irrigation water besides control (0.66 dsm-1 ). The experiment was conducted to study the effect of water salinity on per cent seedling emergence, growth, drymatter production, fruit size, fruit yield and nutrient uptake with three replications in a randomized block design with factorial concept A 1991-92 pot culture experiment was conducted during kharif -1 on sandy soil with an ECe of 0.75 dsm , collected from Agricultural College Farm Bapatla, to study the salt tolerance of ten tomato genotypes viz., Arka Abha, Punjab Chhuhara, Bapatla Local, Arka Ashish, Pusa Gaurav, Punjab Kesari, Pusa Early Dwarf, Pusa Ruby and Sl-120. Five salin- 1 ity levels (2, 4, 6, 8, 10 dsm ) were developed in the irrigation water besides control (0.66 dsm-1 ). The experiment was conducted to study the effect of water salinity on per cent seedling emergence, growth, drymatter production, fruit size, fruit yield and nutrient uptake with three replications in a randomized block design with factorial concept. Increased levels of water salinity not only reduced the per cent seedling emergence but also delayed the time of emergence. Among varieties Arka Saurabh, Punjab Chhuhara and Arka Abha recorded maximum seedling emergence while minimum was recorded by Cvs Bapatla Local followed by Punjab Kesari. Growth and drymatter production were significantly reduced at all salinity levels cultivars Arka Saurabh, Punjab Chhuhara and Arka Abha were superior in its growth and drymatter production at all the stages even at higher salinity. levels. Number of fruits per plant and yield per plant decreased· significantly with increasing salinity in irrigation water. Cvs. Arka Saurabh, Punjab Chhuhara, Arka Abha recorded higher fruit yield over others due to its maximum number of fruits per plant. The above cultivars recorded less than 50 p~r cent reduction in yield at an EC iw of 8 ds/m. The uptake of calcium, magnesium increased with increasing levels of water sali~ity and the reverse was true in the uptake of nitrogen, phosphorus, potassium and sulphur. Cultivars Arka Saurabh, Punjab Chhuhara and Arka Abha have recorded maximum nutrient uptake at both stages viz., peak flowering and final harvesting. It was concluded that three cultivars Arka Saurabh, Punjab Chhuhara and Arka Abha were more tolerant to the saline water irrigation than the rest of the varieties tested.enThesis