The influence of Tilletia spp. inoculum source and enviromental [i.e. environmental] conditions on the frequency of infected wheat spikes
2009
Koprivica, M., Ministry of Agriculture, Forestry and Water Management of the Republic of Serbia, Belgrade (Serbia). Plant Protection Directorate | Jevtic, R., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Dulic-Markovic, I., FAO SEEDEV
Influence of inoculum source on the incidence of common bunt, caused by fungi from the genus Tilletia, was estimated on the frequency of bunt infected wheat spikes under our agroecological conditions. The cultivar Novosadska Rana 5 was sown in a random split plot design with four replicates at Rimski Sancevi (Serbia) on three sowing dates during 1999/2000 and 2000/2001. The following variables were evaluated: 1) control; 2) soilborne inoculum (4 g teliospores/1 l soil); 3) seedborne inoculum (2 g teliospores/1 kg seeds); 4) seedborne inoculum + soilborne inoculum (4 g teliospores/1 l soil + 2 g teliospores/1 kg seeds). Correlation and regression analysis were used to evaluate the effect of temperature and precipitation on the frequency of infected spikes. The frequency of bunt infected spikes depended on the source of Tilletia spp. inoculum, and difference in infection frequencies between variable 2nd and 3rd, as well as 3rd and 4th, were determined for the assessed infection parameters.
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