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Milicevic T.,University of Zagreb | Kaliterna J.,University of Zagreb | Ivic D.,Hrvatski centar za poljoprivredu | Milovic M.,Medical and Chemical School
Natura Croatica | Year: 2014

In the period 2007-2012, the occurrence of phytopathogenic fungi on native plant species in natural ecosystems and urban environments was investigated in different locations of Croatia (national parks, nature parks etc.). Identification of fungal plant pathogenic species was performed on the basis of morphological charactericsof their spore-bearing structures and spores. A relatively great number of plant pathogenic fungal species was determined (over 150 species), out of which 12 species were determined for the first time in Croatia. These were the following: Cercospora bolleana, Cercospora violae, Cercospora scandens, Coniothyrina agaves, Erysiphe aquilegiae, Erysiphe sedi, Erysiphe buhrii, Hainesia lythri, Microsphaeropsis hellebore, Pseudocercospora ceratoniae, Septoria cyclaminis and Septoria primulicola. Considering the relatively limited data on the occurrence of phytopathogenic fungi in Croatia, these findings present a significant contribution to the knowledge of the biodiversity of fungi in Croatia. Some of the plant species like Helleborus odorus and H. atrorubens are recorded as new host plants for certain species of fungi. Source


Rukavina I.,Hrvatski centar za poljoprivredu | Maric S.,Sveuciliste Josipa Jurja Strossmayera u Osijeku | Cupic T.,Poljoprivredni Institute Osijek | Guberac V.,Sveuciliste Josipa Jurja Strossmayera u Osijeku | Petrovic S.,Sveuciliste Josipa Jurja Strossmayera u Osijeku
Poljoprivreda | Year: 2013

Morphological characteristics of ear were used for estimation of genetic diversity in 50 varieties of hexaploid winter wheat originated from Croatian breeding programs. Field trials were set at two locations in two vegetation years (2008/09 and 2009/10). Observations in field trials and laboratory were done on 13 ear characteristics used in DUS testing. Genetic diversity research of Croatian wheat germplasm according to ear morphological characteristics, showed a high level of dissimilarity (0.625) among the tested varieties. Varieties Super Žitarka and AFZG Karla are pointed out with highest coefficient of dissimilarity (0.94). Application of UPGMA method showed that all varieties in different groups had significant genetic diversity. On the basis of data analysis the most distant varieties with the best morphological characteristics of ear were determined and it will be help in the selection of new parent combinations in future breeding programs. Source


Rukavina I.,Hrvatski centar za poljoprivredu | Maric S.,Sveuciliste Josipa Jurja Strossmayera u Osijeku | Guberac V.,Sveuciliste Josipa Jurja Strossmayera u Osijeku | Cupic T.,Poljoprivredni Institute Osijek | Tepper C.,Bundessortenamt
Poljoprivreda | Year: 2012

Glutenins loci were used for variability estimation in 50 varieties of hexaploid winter wheat originated from Croatian breeding centres. Polyacrylamide gel electrophoresis (PAGE) in presence of sodium dodecyl sulphate (SDS) was used for determination of high molecular weight glutenins (HMW-GS). Number of allels per loci ranged from 3 at Glu-A1 to 5 at Glu-B1 and Glu-D1, the average number of allels was 4.33. The highest genetic diversity was found at loci Glu-B1 (He=0.687). The most frequent subunit at loci Glu-A1 was 2* (56%). At loci Glu-B1 the most common combination of subunits was 7+8 with 40%, and at loci Glu-D1 5+10 with 68%. The study also defines high quality varieties with largest number of Glu-scores. The results attained from this study allow further development of specific breeding programs for winter wheat quality improvement and improvers creation. Source

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