Izvorni znanstveni članak
Maize Tolerance to Western Corn Rootworm Larval Feeding: Screening through Five Years of Investigation
Marija Ivezić
; Josip Juraj Strossmayer University of Osijek, Faculty of Agriculture in Osijek, Trg Sv. Trojstva 3, 31000 Osijek, Croatia
Emilija Raspudić
; Josip Juraj Strossmayer University of Osijek, Faculty of Agriculture in Osijek, Trg Sv. Trojstva 3, 31000 Osijek, Croatia
Mirjana Brmež
; Josip Juraj Strossmayer University of Osijek, Faculty of Agriculture in Osijek, Trg Sv. Trojstva 3, 31000 Osijek, Croatia
Ivana Majić
; Josip Juraj Strossmayer University of Osijek, Faculty of Agriculture in Osijek, Trg Sv. Trojstva 3, 31000 Osijek, Croatia
Dražen Džoić
; Ministry of Agriculture, Fisheries and Rural Development, 10000 Zagreb, Croatia
Andrija Brkić
; Agricultural Institute Osijek, 31000 Osijek, Croatia
Sažetak
Research on maize tolerance to rootworm larval feeding was conducted in Osijek, Croatia in period from 2001 to 2005. Seven Croatian commercial maize hybrids were evaluated by measuring traits associated with resistance: root injury, root size and root regrowth. Hybrids were grown in monoculture in field trials in four replicates. Root injury was rated according to Iowa Node Injury Scale (0-3), and the Eiben 1-6 Scale, reversed, was used for root size and regrowth assessment. No significant differences were observed for root injury between the hybrids.
However, injury was significantly different across the years and more damaged roots were observed in 2003 (1.606), 2004 (1.281) and 2005 (0.940) compared to 2001 (0.081) and 2002 (0.099). Root size and root regrowth differed significantly across the years of investigation, while differences between the hybrids occurred only for root regrowth. Hybrids OsSK 617, OsSK 602 and OsSK 596 appeared to be the most tolerant through all years of investigation measured by root regrowth.
Ključne riječi
western corn rootworm; larva; maize hybrids; tolerance
Hrčak ID:
48517
URI
Datum izdavanja:
21.12.2009.
Posjeta: 742 *