24 



Table 3- Populations of fungi that recolonized fumigated soils amended 

 with one isolate of Aspergillus ochraceus , one isolate of Penicillium 

 restrictum , and three isolates of Trichoderma harzianum at 1000 conidia 

 of each isolate per gram of soil . 



Propagules X 10~/g of soil at days after fumigation x 

 Fungi ~4 TI 18 25 32 39 4"o~~ 



Penicillium spp. 0.0 0.1 0.0 0.2 0.2 0.1 0.2 



P. restrictum 12.9 200.0 130. 1500.0 950.0 400.0 350.0 



Trichoderma spp. 0.1 0.2 0.3 0.2 0.1 1.0 0.4 



T. harzianum 7-3 333.0 400.0 1350.0 110.0 723-0 430.0 



A. ochraceus 17.4 250.0 



Gladosporium spp .0.2 1.2 



Mucor spp. 0.0 0.0 



Total 37-9 784.5 565-3 2884.4 1093-8 1344.1 852.4 



x Propagules X 10 per gram of air-dried soil detected in potato dextrose 

 agar which contained 1 ml of Tergitol NPX and 50 mg of chlortetracycline 

 hydrochloride per liter of medium. 



7-0 



19-0 



23.0 



213.0 



62.0 



8.0 



14.6 



10.0 



6.6 



9.5 



0.0 



0.4 



0.5 



0.4 



0.3 



