Abstract
The objective of this research is to determine the
influence of glyphosate on the conidia count of the Trichoderma
harzianum fungus grown under laboratory conditions. This
fungus is found in all types of soil, but it is more important in
those for agricultural use where they fulfill a beneficial function.
Glyphosate is an herbicide widely used in the elimination of
weeds and shrubs, its effect can be extended to beneficial fungi
and its permanence in the soil exceeds the specifications in the
data sheet. For this reason, the culture of T. harzianum is
carried out under direct exposure with different concentrations
of glyphosate, the average dose (1 ml) in the investigation arises
from that recommended by the manufacturer of the product and
four more are established, two major doses (1.25 ml and 1.50 ml)
and two minor doses (0.50 ml and 0.75 ml). Data was collected
using observation tokens. All doses were observed to decrease
the number of conidia including the mean 1 ml dose producing
a 54% reduction compared to the control sample. The doses of
1.25 ml and 1.50 ml reduce up to 65% and 81% respectively.
Therefore, this herbicide negatively influences the growth of the
fungus and consequently inhibits its beneficial actions.
influence of glyphosate on the conidia count of the Trichoderma
harzianum fungus grown under laboratory conditions. This
fungus is found in all types of soil, but it is more important in
those for agricultural use where they fulfill a beneficial function.
Glyphosate is an herbicide widely used in the elimination of
weeds and shrubs, its effect can be extended to beneficial fungi
and its permanence in the soil exceeds the specifications in the
data sheet. For this reason, the culture of T. harzianum is
carried out under direct exposure with different concentrations
of glyphosate, the average dose (1 ml) in the investigation arises
from that recommended by the manufacturer of the product and
four more are established, two major doses (1.25 ml and 1.50 ml)
and two minor doses (0.50 ml and 0.75 ml). Data was collected
using observation tokens. All doses were observed to decrease
the number of conidia including the mean 1 ml dose producing
a 54% reduction compared to the control sample. The doses of
1.25 ml and 1.50 ml reduce up to 65% and 81% respectively.
Therefore, this herbicide negatively influences the growth of the
fungus and consequently inhibits its beneficial actions.
| Original language | American English |
|---|---|
| Pages (from-to) | 514 |
| Number of pages | 518 |
| Journal | International Journal of Environmental Science and Development |
| Volume | 11 |
| Issue number | 11 |
| State | Published - 2020 |
| Externally published | Yes |