Effect of TIBA on chlorophyll, soluble protein content and yield of tomato

A pot experiment was conducted to find the effects of TIBA on chlorophyll and soluble protein content of leaves and on yield of tomato var. Bahar. Six levels of TIBA viz., 0,10,15,20,25 and 30 ppm were applied at 30 DAT as foliar spray. The application of 20 ppm TIBA had increased the total chlorophyll content of leaves at 40 DAT, while 10 ppm was more effective at 80 and 100 DAT. In the early stages of plant growth, soluble protein content of leaves did not vary due to the application of TIBA but showed significant differences at 80 and 100 DAT. The highest soluble protein content was recorded with 10 ppm TIBA at 100 DAT. The application of TIBA had reduced the height of tomato plants, while increased the number of flowers/plant. The retention of higher number of fruits/plant had resulted in the highest fruit yield/plant with 10 ppm TIBA, although remarkable increase had occurred in individual fruit weight with 30 ppm TIBA.