Development of yellow rust epidemic in a susceptible winter wheat variety
1994
Vechet, L. (Vyzkumny Ustav Rostlinne Vyroby, Prague-Ruzyne (Czech Republic) | Odbor Aplikovane Genetiky)
Winter wheat, cultivar Danubia was attacked by yellow rust (race Clement) in a different way in each year of a six-year trial. The flag leaves were the most affected leaves of the plant, with flag and F-1 leaves each having more than 30 % of the total infection of the plant. The share of other leaves was 4 to 14 %. More than 50 % of all ears were affected. A highly, positive correlation was found between the attack of whole plants, F-2 leaves and that of the flag leaves. The number of attacked ears was strongly influenced by the attack of the flag leaves and somewhat less by the attack of F-2 leaves and of whole plants. The rate of disease development in different leaf floors was on average highest in the F-1 and flag leaves; it was dependent strongly on the daily mean temperature in the period of visible attack of leaves
显示更多 [+] 显示较少 [-]