SELECTION OF SALT TOLERANT GENOTYPES BASED ON AGROMORPIIOCENIC PHYSIOLOGICAL AND NATRITION TRAITS OF TOMATO (Solanum lycopersicum L.)

Abstract

A pot experiment was conducted to observe the performances of lilieen tomato genotypes under three different salinity treatments. Ile experiment was conducted beside the net house of Genetics and Plant Breeding Department, Sher-e-l3angla Agricultural University. Dhaka- 1207. Bangladesh. durin2 the months of November 2013 to March 2014. Iwo factorial experiment included lifleen tomato genotypes viz. Ci (BD-7289). G2 (BD-7291). C: (BD-7298). G4 (BD-7748), Gs (BD-7757). (Is (BD-7760). G7 (BD-7761). (is (13D-7762). Gv (BD-901 I). Uio (l3D-9960). Ch (BAlti Toniato-2). Cii: (BARI Tomato-3). Ch3 (SARI Thmato- 1!). Ciii (BAR! I lybrid Tomato-4). (35 (BARI Hybrid lomato- 5) and three salinity treatments Ti (Control). 12 (8 dSTh). 13 (12 dS/rn) were outlined in Completely Randomized Design (CRD) with three replications. Seedlings of 30 days were transplanted to main plastic pots and two salinity treatments S dSim and 12 dS/m were applied after 7 days of transplanting. The results showed that both the di lierent tomato genotypes and salinity treatments significantly influenced independently and also in interaction on agromorphogenic. physiological and nutritional traits of tomato plant. Almost all traits responded negatively as the salinity level increased except days to first flo ering. maturit. Na content. brix (%) and vitamin-C content. l:ruit characters like fruit diameter. fruit length and average fruit weight increased in genotype (Is for both the stresses than the control condition. llie minimum reduction was observed in case of yield per plant in the same (Is genotype. Lyeopene content increased in 2enotvpe (313 and (Iii from slightly saline to moderate saline soil respectively. Brix (%) increased and was maximum in Gio genotype and vitamin-C content was the highest in genotype C I i at moderate salinity. Therefore, genotype (Ig could he recommended for higher yield and enotype 014 and (I i i could he recommended for high vitamin-C and lycopene content to the farmers for cultivation under slightly saline to moderate saline soil in the coastal regions of Bangladesh. These genotypes could also be served as parent material for fttture hybridization or genetic transfoniiaiion program.