Ripening periods (days) Treatments
Ethephon (500 ppm) Ethephon (1000 ppm) Ethephon (1500 ppm) Ethylene gas (100 ppm) Control
L a b L a b L a b L a b L a b
3 46.35 -4.63 19.33 47.12 -2.49 20.50 48.96 -4.44 19.79 48.09 -0.89 18.84 50.02 -5.03 20.45
5 49.07 3.80 18.97 48.55 4.11 19.60 45.97 5.85 18.36 45.10 8.47 18.71 48.12 -1.02 20.37
7 47.57 13.70 17.90 40.93 15.69 17.26 41.58 16.64 15.75 39.43 17.01 16.16 45.72 12.26 18.27
9 39.78 19.95 12.96 36.38 20.76 15.98 36.65 21.37 12.31 34.75 21.28 14.15 41.94 18.23 17.07
11 37.95 24.08 11.25 33.55 24.34 10.77 35.15 22.95 11.76 34.09 24.63 12.30 40.02 20.42 14.26
13 36.39 24.32 10.05 33.64 25.40 9.75 33.88 23.78 10.99 33.50 25.06 10.48 38.42 23.18 11.43
Table 2: Effect of ethephon and ethylene gas on colour (L, a,b) of tomato during storage (20 ± 1°C and 90-95% RH).