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TEA TREE ESSENTIAL OIL INDUCES RESISTANCE AGAINST TUBER ROT CAUSED BY ALTERNARIA ALTERNATA DURING POTATO STORAGE
Table 1 - Effect of TTO (4.0 g/l) on POD, and PAL activities in potato tubers infected with A. alternata during 0-4 days of storage
Treatments | POD activity (U mg-1 protein min-1) | PAL activity (U mg-1 protein min-1) | ||||||||
0* | 1 | 2 | 3 | 4 | 0* | 1 | 2 | 3 | 4 | |
Control | 3.26 ±0.20h | 4.03 ±0.15g | 4.46 ±0.35g | 7.73 ±0.20e | 8.33 ±0.49d | 2.36 ±0.14s | 3.97 ±0.07h | 8.34 ±0.40e | 13.33 ±0.16c | 7.24 ±0.17f |
TTO (4.0 g/l) | 3.26 ±0.20h | 6.63± 0.37f | 9.30 ±0.43c | 12.23 ±0.32b | 13.13 ±0.15a | 2.36 ±0.14s | 5.52 ±0.05g | 14.67 ±0.09b | 19.89 ±0.11a | 12.54 ±0.19d |
LSD 0.05 | 0.53 | 0.32 | ||||||||
values followed by different letters are significantly different according to LSD test at P < 0.05
* Days after treatment (0-4 days)