Green house evaluation of IAA and GA3 producing yeast isolates on growth tomato crop by root dip method

Abstract

A green house experiment was conduct by use of IAA (MZL -8 and TCL -1) and GA3 (CAL – 1 and ACL- 3) producing yeast isolates on growth of tomato crop by root dip method with 8 treatments and 3 replication at Department of Agricultural Microbiology, GKVK, Bengaluru. The yeastisolate TCL -1 recorded maximum plant height, number of leaves per plant, number of branches per plant, root length, fresh shoot biomass, dry shoot biomass, fresh root biomass, dry root biomass, IAA and GA3 content, 44.73 cm, 80, 11.40, 14.70 cm, 24.00 g/plant, 11.75 g/plant, 7.98 g/plant, 3.91 g/plant, 1.205 μg/g of leaf and 0.550 μg/g of leaf respectively. The control (T1) recorded Lowest plant height, number of leaves per plant, number of branches per plant, root length, fresh shoot biomass, dry shoot biomass, fresh root biomass, dry root biomass, IAA and GA3 content, 22.20 cm, 55.70, 8.00,9.00 cm, 11.00 g/plant, 6.23 g/plant, 3.67 g/plant, 2.07 g/plant, 0.384 μg/g of leaf and 0.200 μg/g of leaf respectively at 50 DAT.