|
| Table 2. Effect of GA3, IAA or BAP or foliar nutrient on biocontrol of A. alternata by T. harzianum tested in vitro in dual cultures. |
|
Additions |
Concentration (ppm) |
% growth A. alternata1 |
% growth T. harzianum2 |
|
None |
-- |
--
|
100c |
|
None |
-- |
100a |
--
|
|
None |
-- |
80 + 2b |
126 + 5d |
|
3GA3 |
40 |
80 + 1b |
121 + 4d |
|
4IAA |
40 |
80 + 1b |
121 + 5d |
|
BAP |
40 |
80 + 3b |
116 + 3d |
|
BayfolanR |
40 |
81 + 2b |
126 + 4d |
|
1 100% growth of A. alternata corresponded to 2.4 + 0.1 cm diameter in the absence of T. harzianum. |
| 2 100% growth of T. harzianum corresponded to 8.8 + 0.1 cm diameter in the absence of A. alternata. |
| 3 Includes results with ActivolR and with Hoechst liquid Gibberelic acid, GA3. |
| 4 Includes results with BayerR 2T 005 SL and with NAA-800. |
| R Means within the column followed by the same letter are not significantly different at p<0.05. |
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