Poljoprivredni Institute Osijek

Osijek, Croatia

Poljoprivredni Institute Osijek

Osijek, Croatia
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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.


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.


Liovic I.,Poljoprivredni Institute Osijek | Krizmanic M.,Poljoprivredni Institute Osijek | Mijic A.,Poljoprivredni Institute Osijek | Bilandzic M.,Poljoprivredni Institute Osijek | And 3 more authors.
Poljoprivreda | Year: 2012

Results of line x tester analysis for 15 sunflower genotypes of the Agricultural Institute Osijek are presented in this paper. Three A lines (cms) and three Rf testers with different oil content level (low, medium, high) in all combinations (nine crosses) were crossed in 2010. In 2011, the lines, testers and their crosses were sown in field trials at two locations (Karanac and Osijek). The oil content was determined after harvesting, whereas line x tester analysis was conducted based on the obtained results. Variance of lines and testers, which refers to the general combining ability (GCA) was much higher than the variance of line x tester, related to specific combining ability (SCA). It showed on dominant role of the additive component of genetic variance in the inheritance of oil content. Statistically significant differences were not determined between the GCA and SCA effects. The highest values of GCA for oil content had line 2 (medium oil content) and tester 6 (high oil content) at both locations. The largest contribution for oil content had lines (57.81 and 51.28 %) followed by testers (28.88 and 26.27 %) and the lowest accounts for interaction (13.31 and 22.45 %) at both locations (Karanac and Osijek).


Svitlica B.,Ivana Bunjevac | Cosic J.,Poljoprivredni fakultet u Osijeku | Simic B.,Poljoprivredni Institute Osijek | Vrandecic K.,Poljoprivredni fakultet u Osijeku | And 2 more authors.
Poljoprivreda | Year: 2011

Growth and sporulation of selected isolates of F. graminearum, F. verticillioides and F. subglutinans were examined over 15 days on seven different media of diverse pH levels and under two light conditions. All isolates formed the most densd mycelia and had the fastest growth on PDA media and under dark conditions. F. graminearum had the weakest sporulation on all media. F. verticillioides and F. subglutinans sporulated well on the all investigated media. Statisticaly significant slower mycelial growth was determined on pH 4.5 for all species.


Novoselovic D.,Poljoprivredni Institute Osijek | Simek R.,Poljoprivredni Institute Osijek | Dvojkovic K.,Poljoprivredni Institute Osijek | Drezner G.,Poljoprivredni Institute Osijek
Poljoprivreda | Year: 2012

The objective of this paper was to estimate phenotypic and genetic correlations in order to improve existing wheat quality breeding methodology in early generations. For this purpose, one-year trial with population of 143 recombinant inbred lines from crossing combination Bezostaja/Klara was carried out on Osijek and Slavonski Brod locations in 2008/09 year. Among analyzed traits (grain protein content, wet gluten content, gluten index, mid-line peak time -MPT, mid-line peak height -MPH and mid-line tail width -MTW) consistent positive phenotypic and genetic pattern of correlations was found between grain protein content and wet gluten content, negative between gluten index with grain protein content and wet gluten content, and positive between grain protein content and wet gluten content with MPT and MPH. Conformity of the phenotypic and genetic correlations was confirmed by Mantel test on both locations (for Osijek r=0.81** and for Slavonski Brod r=0.88**).


Liovic I.,Poljoprivredni Institute Osijek | Martinovic J.,Bioagrar D.o.o. | Bilandzic M.,Poljoprivredni Institute Osijek | Krizmanic M.,Poljoprivredni Institute Osijek | And 2 more authors.
Poljoprivreda | Year: 2010

Aiming to determine desiccation impact on seed moisture and yield, impurity, oil content and sunflower price, in ordinary and stubble sowing (after chamomile and winter barley) field trials were set up on the areas of Bioagrar Ltd. company Ivanovci (Valpovo ) in 2008 and 2009. Six sunflower hybrids: LG 53.80M (2008), LG 54.12 (2009), Brio, LG 56.65M, Apolon, Šokac and OS-H-13 were used in the trials in ordinary sowing of 2008 and 2009 while in stubble sowing of 2008 hybrid LG 53.80M was sown, and in 2009 hybrid LG 54.12. Reglone forte [diquat] (3 l/ha) and Harvade 25F [dimethipin] (2 l/ha) were used as desiccants applying 500 l water / ha. Desiccation was done by pulled tractor sprayer of 18 m working width. In these researches, desiccation was very useful agro-technical measure which considerably accelerated sunflower maturation, especially in a stubble sowing, and reduced presence of weeds. This, in turn, enabled earlier, easier and faster harvesting, and earlier field preparation for the next crop sowing. Regarding sunflower prices, desiccation is profitable in wet weather years.


Tucak M.,Poljoprivredni Institute Osijek | Cupic T.,Poljoprivredni Institute Osijek | Popovic S.,Poljoprivredni Institute Osijek
Poljoprivreda | Year: 2010

The objectives of this research were to assess the variability of 10 phenotypic traits within and among of 21 alfalfa breeding populations, and to select the most promising populations regarding high values of important agronomic traits in order to develop new synthetic cultivars. The investigation was conducted at the experimental field of the Agricultural Institute Osijek. Field trial was arranged according to the randomized block design in three replications in two consecutive years (2008-2009). Studied alfalfa breeding populations were significantly different in yields of green mass and dry matter, number of stems, height and regeneration of plants, number and length of internodes, stem thickness and width of central leaflet. Significant variability was determined within and among populations for all observed traits, except for length of central leaflet. High yields and major yield components (number of stems, height and plant regeneration), as well as favorable values for other studied traits were found for breeding populations OPL-10, 12, 14, 15, 17, 20 and 21. Determined superior plants within the best populations are potential parental components for a new synthetic cultivars development.


Rapcan I.,Poljoprivredni Fakultet Sveucilista J. J. Strossmayera U Osijeku | Bukvic G.,Poljoprivredni Fakultet Sveucilista J. J. Strossmayera U Osijeku | Grljusic S.,Poljoprivredni Institute Osijek | Teklic T.,Poljoprivredni Fakultet Sveucilista J. J. Strossmayera U Osijeku | Jurisic M.,Poljoprivredni Fakultet Sveucilista J. J. Strossmayera U Osijeku
Mljekarstvo | Year: 2010

The goal of the research was to determine the influence of two locations (Osijek and Vinkovci) and seed age on field germination, vegetative mass and dry matter of vegetative mass yields, grain yield, 1000 grain weight and grain crude protein yield of foreign spring field pea cultivar (Timo) during two successive years (2004 and 2005). The year has significantly influenced the grain yield, and the location influenced the grain yield and 1000 grain weight. In the first year of research, the greater grain yield by 70 % was accomplished on Osijek location, and in the second year it almost doubled. 1000 grain weight was by 19 % greater in the second year of research on Osijek location in relation to Vinkovci location. The same cultivar seed stored for 9 and 21 months were sown on both locations in the second year of investigation. Field germination of 9 month old seed was for 12.1 % greater than 21 month old seed. Seed maturity and location interaction was significant (p=0.05) for vegetative mass yield, dry matter of vegetative mass yield, grain yield and grain crude protein yield.


Cupic T.,Poljoprivredni Institute Osijek | Popovic S.,Poljoprivredni Institute Osijek | Gantner R.,Poljoprivredni Fakultet u Osijeku | Tucak M.,Poljoprivredni Institute Osijek | Sudar R.,Poljoprivredni Institute Osijek
Mljekarstvo | Year: 2010

The objectives of this study were to estimate usage possibilities of semi-leafless winter pea type in voluminous feed production in mixture with cereals and to evaluate its quality in relation to standard leafed cultivars. Difference in average yields of green mass between two pea types was not significant. Significant differences were found within combinations types, ranged from 38.63 to 54.67 t ha-1 for combinations with standard leaf type and from 40.51 to 51.09 t ha-1 for combinations with semi-leafless pea type. In average, semi-leafless combinations were achieved digestive proteins yield of 1026 kg ha-1, what ensured 17101 L of milk ha-1 and 49807 MJ ha-1 of energy production, sufficient to hold norm of dairy cow and milk yield of 15712 L ha-1.


Krizmanic G.,Poljoprivredni Institute Osijek | Cupic T.,Poljoprivredni Institute Osijek | Tucak M.,Poljoprivredni Institute Osijek | Popovic S.,Poljoprivredni Institute Osijek
Poljoprivreda | Year: 2015

Field pea (Pisum sativum spp. arvense L.) is becoming increasingly common legumes in fodder production due to the high green mass yield, nutritional value and significant content of nitrogen leaving in the soil. The aim of this study was to determine the purpose and effect of nitrogen fertilization as well as the impact of harvesting regime on three field pea important traits (plant height, dry matter green mass yield). The research was conducted during a period of three years on experimental field at the Agricultural Institute Osijek. The experiment was set up in a split block design with three replications where the harvesting deadline (start of blooming and full bloom) was the main factor and seven levels of nitrogen fertilization (0 to 180 kg N ha-1) the subfactor. Significant differences at a significance level P<0.01 were observed between two harvesting time for all traits, while the interaction between year and harvesting time was determined for the traits: plant height and dry matter content at the level of P <0.01, and the green mass yield at a significance level of P <0.05. Green mass yield in the first year was the smallest being 17.78 t ha-1 on the average, while the highest yield (41.34 t ha-1) was achieved on the average in the second year of the study. Fertilization level and its interaction had no significant effect on plant height, dry matter and green mass yield. © 2015, Faculty of Agriculture in Osijek. All rights Reserved.

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