BIOCONTROL OF SORGHUM DAMPING-OFF BY Gliocladium ISOLATES | ||||
| Journal of Plant Production | ||||
| Article 10, Volume 27, Issue 6, June 2002, Page 3767-3779 PDF (3.4 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2002.254903 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Amal A. H. Hemeda,1; Shahda T. T. Waffa,2 | ||||
| 1Plant Pathology Department, Faculty of Agriculture, EI-Shatby, Alexandria University, Egypt. | ||||
| 2Plant Pathology Department, Faculty of Agriculture, El-Shatby, Alexandria University, Egypt. | ||||
| Abstract | ||||
| Biocontrol treatment were conducted under greenhouse conditions to test tre efficacy of two isolates of Gliocladium roseum [G-17, G-18] and two isolates of G. penicil/oides [G-1, G-19] on controlling sorghum grain rot and seedlings damping-off [caused by Drechslera sp., Fusarium moniliforme and Phoma sp.]. Soil infestation with such biocontrol fungal isolates were applied either one week before, at the time, or one week after planting. The applications of Gliocladium isolates one week before planting significantly (p~0.05) increased seedlings stand from 34.2% to 50.4% and reduced mortality percentage from 65.8 to 49.6%. G. roseum isolates were more effective at this time. When soil infestation was applied at the same time of planting, G-17 and G-19 gave the highest seedlings stand, however, G-18 was the best in increasing shoot and root fresh and dry weight. The application of the antagonists one week after planting, significantly (p~0.05) increased seedlings stand from 50% to 58.8%, and decreased the percentage of mortality from 50% to 41.3%. Isolate G- 17 gave the maximum shoot length and 25% increase in shoot dry weight, however, isolate G-1 gave the highest seedlings stand. The results revealed that the proper time for soil treatment was one week before planting. | ||||
| Keywords | ||||
| Gliocladium; Sorghum; Damping-off; Drechslera; Fusarium; Phoma; Biocontrol | ||||
|
Statistics Article View: 35 PDF Download: 138 |
||||
