Table 5.
Control of rice seedling rot disease caused by Helminthosporium oryzae DOAC 2293 by antagonistic yeasts and chemical fungicides.
| Treatment | Stem (cm) | Root (cm) | Dry Weight (g) 2 | Seed Germination (%) | Seedling Vigor Index | Disease Incidence (%) | Disease Control (%) |
|---|---|---|---|---|---|---|---|
| Negative control | 51.87 ± 6.75a | 10.70 ± 4.22d | 120.09 ± 6.63ab | 89.00 ± 2.45a | 5544.00 ± 209.93ab | nd | nd |
| Positive control: Helminthosporium oryzae DOAC 2293 alone | 45.84 ± 6.95d | 8.53 ± 3.56e | 82.57 ± 3.31e | 76.00 ± 1.63e | 4132.00 ± 120.78e | 25.47 | nd |
| Helminthosporium oryzae oryzae DOAC 2293 with | |||||||
| Candida michaelii YE-239 | 52.44 ± 5.47a | 12.15 ± 8.12a | 103.56 ± 1.40cd | 81.33 ± 1.70bcde | 5253.67 ± 97.04bc | 5.24 | 79.44 |
| Hannaella sinensis YE-19 | 49.07 ± 6.17c | 10.52 ± 3.95d | 95.27 ± 2.14d | 80.00 ± 2.16cde | 4766.67 ± 88.21d | 14.02 | 44.95 |
| Hannaella sinensis YE-58 | 52.38 ± 4.46a | 11.25 ± 4.07bcd | 94.47 ± 1.41d | 79.00 ± 2.16de | 5027.00 ± 92.61cd | 9.33 | 63.37 |
| Meyerozyma caribbica DMKU-RP55 1 | 52.06 ± 6.15a | 11.03 ± 4.30bcd | 101.86 ± 3.84d | 82.33 ± 2.87bcd | 5195.00 ± 194.37bc | 6.30 | 75.27 |
| Pseudozyma hubiensis YE-21 | 50.72 ± 6.05b | 10.78 ± 4.03cd | 105.60 ± 0.84cd | 86.67 ± 2.49ab | 5330.33 ± 209.48abc | 3.85 | 84.88 |
| Rhodotorula mucilaginosa YE-171 | 52.35 ± 5.27a | 10.92 ± 3.68bcd | 94.97 ± 2.12d | 78.67 ± 2.87de | 4977.33 ± 142.64cd | 10.22 | 59.87 |
| Torulaspora indica DMKU-RP31 1 | 52.24 ± 4.95a | 11.08 ± 4.06bcd | 123.22 ± 0.58ab | 90.33 ± 0.94a | 5719.33 ± 120.63a | 0 | 100 |
| Torulaspora indica DMKU-RP35 1 | 52.37 ± 5.17a | 10.94 ± 3.83bcd | 117.15 ± 3.36ab | 87.00 ± 2.94ab | 5508.00 ± 247.92ab | 0.65 | 97.45 |
| Wickerhamomyces anomalus DMKU-RP04 1 | 52.26 ± 4.94a | 10.77 ± 3.92cd | 118.11 ± 3.99ab | 88.33 ± 2.05a | 5567.33 ± 200.73ab | 0 | 100 |
| Wickerhamomyces anomalus DMKU-RP25 1 | 51.75 ± 5.62a | 11.27 ± 4.14bcd | 109.58 ± 3.27bc | 85.00 ± 1.63abc | 5357.33 ± 121.26abc | 3.37 | 86.77 |
| Wickerhamomyces anomalus YE-42 | 52.39 ± 4.82a | 11.65 ± 4.24abc | 121.85 ± 7.20ab | 89.00 ± 1.41a | 5699.33 ± 189.84a | 0 | 100 |
| Carbendazim® | 52.59 ± 5.57a | 11.85 ± 4.06ab | 127.73 ± 4.54a | 84.67 ± 3.68abc | 5445.67 ± 238.94ab | 1.77 | 94.04 |
| Mancozeb® | 48.83 ± 6.51c | 11.22 ± 4.61bcd | 79.94 ± 8.34e | 69.67 ± 4.11f | 4175.92 ± 265.19e | 24.69 | 3.05 |
Each value represents a mean “ ± ” standard deviation (SD). In the same column, data followed by the different lower-case letters are significantly different according to Duncan’s multiple range test at p ≤ 0.05. 1 Antagonistic yeasts from previous investigation [13]. 2 Dry weight of 100 rice plants. nd = not determined.