Naslov
Diallel analysis of maize resistance to Fusarium stalk rot

Autori
Palaveršić, Branko ; Parlov, Dragomir ; Tomičić, Branimir ; Buhiniček, Ivica

Izvornik
Acta agronomica Hungarica (0238-0161) 44 (1996), 4; 365-370

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

Ključne riječi
maize; Fusarium stalk rot; general - GCA and specific - SCA combining ability

Sažetak
Six maize inbreds and their 15 diallel crosses were tested for resistance to Fusarium stalk rot under natural conditions in 1993, 1994 and 1995. Significant effects were obtained for general - GCA and specific - SCA combining ability in all three years of testing. The line Ra232 had significant GCA effects for resistance to Fusarium stalk rot, whereas lines W64AHt and Bc14 were susceptible in two years, 1993 and 1994, with substantial positive GCA effects. In two years, combinations Ra232 x W64AHt, Ra232 x Bc14, A632HtHt x W64AHt and Mo17 x Bc14 were distinguished by significant negative SCA effects for the same trait. The grain yield of the tested maize hybrids was in negative correlation with the percentage of rotted plants, while the percentage of broken stalks was in positive correlation with the percentage of rotted plants. In some lines the resistance of lines per se did not agree with the GCA effects. Moreover, significant SCA effects indicate that it is necessary to test hybrid combinations for resistance to Fusarium stalk rot.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA