[article]
| Title : |
In-vitro evaluation of commercially available fungicides against Bipolaris sorokiniana, the cause of spot blotch of barley |
| Material Type: |
printed text |
| Authors: |
B. Angdembe, Author ; N. Dhakal, Author ; S. G.C., Author ; K. R. Pant, Author ; H. K. Manandhar, Author |
| Publication Date: |
2020 |
| Article on page: |
105-111 p. |
| Languages : |
English (eng) |
| Keywords: |
Food poisoned technique, fungicide, spot blotch, |
| Abstract: |
A laboratory experiment was done to evaluate the effectiveness of commercially available fungicides against spot blotch
pathogen of barley, Bipolaris sorokiniana, at Nepal Polytechnic Institute (NPI), Chitwan, Nepal by employing food
poisoned technique. Fungicides such as Uthane-M45 (mancozeb 75% WP), Blutoxx (copper oxychloride 50% WP), Bavistin
(carbendazim 50% WP), and Thiram (thiram 75% WS) with three concentrations (100 ppm, 200 ppm and 400 ppm) were
included in the experiment. Experiment was arranged in a completely randomized design with four replications for each
treatment. The mycelial growth of B. sorokiniana was recorded at 2, 4, 6, 8, and 10 days after inoculation. All the fungicides
significantly reduced the mycelial growth of the pathogen as compared to control (without any fungicide) in poisoned culture.
Copper oxychloride at 400 ppm inhibited 83% growth of mycelium of the fungus after 10 days. All the concentrations of
copper oxychloride and 400 ppm of mancozeb were able to inhibit more than 50% of mycelial growth of the fungus. The
results revealed that inhibition percentages were increased with the increase in the concentrations of all fungicides used in
this study. The present results thus suggest that the current recommended doses of copper oxychloride and mancozeb for
foliar application purposes may not be sufficient to manage the disease under field conditions and also for seed treatment.
The recommended doses may need to be re-evaluated. |
| Link for e-copy: |
https://afu.edu.np/sites/default/files/12.In-vitro_evaluation_of_commercially_av [...] |
in Journal of Agriculture and Forestry University > Volume 3 (2019) . - 105-111 p.
[article] In-vitro evaluation of commercially available fungicides against Bipolaris sorokiniana, the cause of spot blotch of barley [printed text] / B. Angdembe, Author ; N. Dhakal, Author ; S. G.C., Author ; K. R. Pant, Author ; H. K. Manandhar, Author . - 2020 . - 105-111 p. Languages : English ( eng) in Journal of Agriculture and Forestry University > Volume 3 (2019) . - 105-111 p.
| Keywords: |
Food poisoned technique, fungicide, spot blotch, |
| Abstract: |
A laboratory experiment was done to evaluate the effectiveness of commercially available fungicides against spot blotch
pathogen of barley, Bipolaris sorokiniana, at Nepal Polytechnic Institute (NPI), Chitwan, Nepal by employing food
poisoned technique. Fungicides such as Uthane-M45 (mancozeb 75% WP), Blutoxx (copper oxychloride 50% WP), Bavistin
(carbendazim 50% WP), and Thiram (thiram 75% WS) with three concentrations (100 ppm, 200 ppm and 400 ppm) were
included in the experiment. Experiment was arranged in a completely randomized design with four replications for each
treatment. The mycelial growth of B. sorokiniana was recorded at 2, 4, 6, 8, and 10 days after inoculation. All the fungicides
significantly reduced the mycelial growth of the pathogen as compared to control (without any fungicide) in poisoned culture.
Copper oxychloride at 400 ppm inhibited 83% growth of mycelium of the fungus after 10 days. All the concentrations of
copper oxychloride and 400 ppm of mancozeb were able to inhibit more than 50% of mycelial growth of the fungus. The
results revealed that inhibition percentages were increased with the increase in the concentrations of all fungicides used in
this study. The present results thus suggest that the current recommended doses of copper oxychloride and mancozeb for
foliar application purposes may not be sufficient to manage the disease under field conditions and also for seed treatment.
The recommended doses may need to be re-evaluated. |
| Link for e-copy: |
https://afu.edu.np/sites/default/files/12.In-vitro_evaluation_of_commercially_av [...] |
|
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