Naslov
Evaluation of inoculation methods for determination of winter wheat resistance to Fusarium head blight

Autori
Šarčević, Hrvoje ; Bukan, Miroslav ; Lovrić, Ana ; Maričević, Marko

Izvornik
Agronomy (2073-4395) 13 (2023), 4; 1-14

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
winter wheat ; Fusarium head blight resistance ; artificial inoculation ; maize stalks, heritability

Sažetak
One of the most severe winter wheat (Triticum aestivum L.) diseases is Fusarium head blight (FHB). It is believed that selection for resistance to FHB is better in high disease pressure environments for which various methods of artificial inoculation are used. The standard spray method of artificial inoculation is believed to be technically demanding and labour intensive so scattering of Fusarium infected corn stalks on trial plots after wheat emergence is suggested as a suitable alternative. The aim of this study was to compare the mean values and heritability of the visual rating index (VRI) and the percentage of Fusarium damaged kernels (FDK) between the two abovementioned methods of artificial inoculation and natural infection, and to determine the phenotypic correlations between the three methods for studied traits. Achieved levels of VRI and FDK were comparable for the two methods of artificial inoculation and considerably lower under natural conditions. The mean her-itability over four years for VRI was 0.83, 0.84, and 0.50 for the spray method, infected maize stalks and natural infection, respectively. For FDK, the mean heritability was 0.77 for spray inoculation, 0.57 for maize stalk inoculation and 0.22 for natural infection. Strong positive correlation between the two applied methods of artificial inoculation for studied traits suggests that scattering of infected maize stalks could serve as a reliable supplement for the technically and labor-intensive spray method of artificial inoculation.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA