Novica Mladenov - Academia.edu (original) (raw)

Papers by Novica Mladenov

Ratarstvo i povrtarstvo, 2015

Plant Breeding

The genetic basis of grain-filling duration (GFD, days from anthesis to maturity) in six spring w... more The genetic basis of grain-filling duration (GFD, days from anthesis to maturity) in six spring wheat hybrids involving nine varieties (‘Son-alika’/‘Bobwhite’, ‘Sonalika’/‘Glennson 70’, ‘Lelija’/‘Bobwhite’, ‘Lelija’/‘Mitacore’, ‘Buckbuck’/‘Dugoklasa’, and ‘Vesna’/‘Raduśa’) and their F1, F2, BC1, and BC2 generations was studied in the field near Sarajevo, Yugoslavia. Parental means differed in four of the six crosses. Generation mean analyses of genetic effects indicated that an additive-dominance model was sufficient for only two crosses: Lel/Bow and Lel/Mco. One or more types of epistasis were significant in the remaining crosses. The F1 and F2 means were either intermediate, closer to the mean of the parent with the longer GFD, or closer to the mean of the Parent with the shorter GFD. Even though different modes of gene action controlled GFD among the six crosses, the heritabilities were reasonably high (narrow sense, 39-59) range for six crosses), indicating that progress could b...

Genetika

Cadmium (Cd) is a toxic trace metal pollutant for humans, animals, and plants. It is a heavy meta... more Cadmium (Cd) is a toxic trace metal pollutant for humans, animals, and plants. It is a heavy metal present in soils from natural and anthropogenic sources. Much of the Cd taken up by plants is retained in the root, but a portion is translocated to the aerial portions of the plant and into the seed. The objective of this research was to determine the variability and diversity of Cd content in the leaves of 30 wheat cultivars with different ploidy level, during two years. Analyses of Cd content (ppm) in the leaves at heading stage were performed with an atomic absorption spectrometer (AAS). Significant differences between the mean values of the genotypes in Cd content were found. Tetraploid wheat genotypes had higher Cd content than hexaploid genotypes. Cd content was predominantly influenced by the year of growing (73%). The influence of genotype on Cd content amounted 16% and the interaction genotype × year 11%. The cluster of the genotypes consists of four groups. In the groups thr...

Seven hundred and ten wheat genotypes from the Novi Sad Core Collection, originating from 38 coun... more Seven hundred and ten wheat genotypes from the Novi Sad Core Collection, originating from 38 countries, have been evaluated for 54 traits under both field and lab conditions during seven growth seasons. In each year, the field experiment comprised 3–7 replications, each with basic plot size of 1.2 m2 . Based on the obtained data, a subset of 96 genotypes with the highest phenotypic variability for 26 of the most important breeding traits was identified for screening with microsatellites. A set of 36 SSRs was used for molecular screening, covering the 42 wheat chromosomes. To test the effectiveness of the concept of association between marker alleles and yield, the 96 accessions were grouped according to the presence of particular microsatellite fragments in at least three genotypes and average group yields were compared using one-way ANOVA. Associations were determined for 13 microsatellites (gwm46, gwm155, gwm190, gwm192, gwm295, gwm337, gwm484, gwm539, gwm540, psp3088, psp3103, ps...

Journal of the Science of Food and Agriculture

Background In the present paper, a special method for derivatization of liposoluble extract of co... more Background In the present paper, a special method for derivatization of liposoluble extract of common wheat and spelt flours was employed which enables simultaneous detection of fatty acid and non-saponifiable lipid fractions. ResultsGC-MS analytical data for both fractions were separately analyzed by multivariate statistical techniques to model classes of different common wheat and spelt cultivars. Cluster Analysis (CA) was used, and the obtained results revealed that better discrimination of samples was achieved by analyzing the peak area after 16 min retention time (non-saponifiable lipids), rather than commonly used peak area between 12–16 min (fatty acids fraction), due to more distinctive positions of points in factor space, even though the distances between points for fatty acid fraction (12–16 min) were greater. Similar results were obtained by Principal Component Analysis (PCA), where all wheat points almost coincided whereas spelt showed good discrimination. Conclusion Com...

The objective of the paper was to determine the effects of the cultivar, year, and cultivar x yea... more The objective of the paper was to determine the effects of the cultivar, year, and cultivar x year interactions on the expression of several technological quality characters in winter wheat grown under semiarid conditions of the Vojvodina province. Twenty-three winter wheat cultivars were grown over a seven-year period (1990-1996). The harvested grain was milled and the flour was analysed for protein content, wet gluten, bread yield, and loaf volume. The significance of cultivar x year interactions was determined using two parameters of stability - the coefficients of regression and deviation from regression. In protein content, wet gluten, and bread yield, the contribution of the year to total variance was higher than that of the cultivar, while for loaf volume the situation was the opposite. The parameters of stability showed that a number of cultivars exhibited stability for some of the quality indicators under investigation. However, only the cultivar Proteinka had both a high p...

Selekcija i semenarstvo, 2014

Developments in Plant Breeding, 2007

Six quality traits related to bread making have been analyzed in 37 winter wheat genotypes releas... more Six quality traits related to bread making have been analyzed in 37 winter wheat genotypes released in the past 50 years in the former Yugoslavia and the present S&amp;amp;amp;amp;amp;M. Regarding cultivars in production, 4 periods were defined, first from 1955 to 1973, second from 1974 to 1982, third from 1983 to 1992 and fourth from 1992 to 2005. The objective

To cite th is article / Pou r citer cet article -Kraljevic-Balalic M., Petrovic S., Dimitrijevic ... more To cite th is article / Pou r citer cet article -Kraljevic-Balalic M., Petrovic S., Dimitrijevic M., Mladenov N. Gen otypic variation for leaf cadmiu m con cen tration in Triticu m sp.

Izvod: U radu je analiziran uticaj kiše na prinos pšenice u punoj zrelosti. Korišćeni su rezultat... more Izvod: U radu je analiziran uticaj kiše na prinos pšenice u punoj zrelosti. Korišćeni su rezultati mikro-ogleda iz 1997, 2009. i 2010. godine. Izračunata je jednačina linearne regresije kako bi se utvrdilo koliko je smanjenje prinosa sa povećavanjem padavina. Na osnovu te analize došlo se do zaključka da svaki l m -2 utiče na smanjenje prinosa od 10 kg ha -1 ili 0,12%. Svakako da smanjenje prinosa nije linearno, tako da u prvih 60 l m -2 smanjene za svaki l m -2 iznosi 17 kg ha -1 (0,2%) a sa nastavkom kišnog perioda gubici se smanjuju i iznose 3 kg ha -1 (0,02%).

Euphytica, 1998

In Europe, during the 1960s, mainly two-rowed spring barley was used for malting. Traditionally, ... more In Europe, during the 1960s, mainly two-rowed spring barley was used for malting. Traditionally, spring malting barley was produced in regions with moderate temperatures and adequate rainfall throughout the growing season. Winter malting barley, on the other hand, was mostly grown in the milder arid and semiarid parts of Europe. Due to global climatic changes and its higher yield, winter

Genetika, 2011

2011): Effect of environmental and genetic factors on the correlation and stability of grain yiel... more 2011): Effect of environmental and genetic factors on the correlation and stability of grain yield components in wheat -Genetika, Vol 43, No. 1, 141 -152.

Genetika, 2009

: Phenotypic reaction of wheat grown on different soil type. Vol. 41, No. 2,[169][170][171][172][... more : Phenotypic reaction of wheat grown on different soil type. Vol. 41, No. 2,[169][170][171][172][173][174][175][176][177] Phenotypic variation of nine wheat varieties under different growing conditions was followed. Trials were conducted on solonetz, humoglay and black soil. The yield, as well as, the plant height, spike length and harvest index were studied. The effect of different environments on varietals phenotypic variability, with the emphasis on genotype by environment interaction, was analyzed using AMMI model.

Ratarstvo i povrtarstvo, 2013

Genetika, 2007

: Breeding aspects of low temperature tolerance in wheat. Vol. 39, No. 3,[375][376][377][378][379... more : Breeding aspects of low temperature tolerance in wheat. Vol. 39, No. 3,[375][376][377][378][379][380][381][382][383][384][385][386] Wheat resistance to low temperatures is complex in nature and dependant on variety as well as on interaction with the environment. In unfavorable conditions for hardening, even varieties resistant to cold may exhibit higher susceptibility to low temperatures. Over a two-year period (2003-04), tests were conducted in cold chamber at-15˚C lasting 24, 36, 48 and 60 hours. The 23 wheat varieties analyzed were divided into four groups according to year of release. In the first group, which was mostly made up of foreign introductions, the average plant survival rate across treatments was 87%. The different origins of the varieties from this group were a significant factor behind the differences in their resistance levels. The second group, comprised of the first domestic varieties, had an average plant survival rate of 89%, while the third, containing the dominant varieties from the 1980s, had a plant survival rate of 88.4% on average. In the fourth group, consisting mostly of varieties that are 376 GENETIKA, Vol. 39, No. 3,375 -386, 2007. currently commercially grown in the country, the average plant survival rate was 86.6%. Thanks to high temperatures present during the process of hardening, there was greater plant damage and percent winterkill in the second year than in the first. The resistance of the varieties to low temperatures has been maintained at a level enabling successful and stable production under the cold temperature stress conditions of southeastern Europe.

... Zbornik radova Instituta za ratarstvo i povrtarstvo 30: 443-452 \uri} V, Kobiljski B, Pankovi... more ... Zbornik radova Instituta za ratarstvo i povrtarstvo 30: 443-452 \uri} V, Kobiljski B, Pankovi} L (2005): Aktuelne NS-sorte p{enice kao sirovina za prera|iva~ku industriju. Zbor - nik radova Instituta za ratarstvo i povrtarstvo 41: 207-220 Ed wards RA, Ross AS, Mares DJ, Ellison FW ...

$Research paper thumbnail of Characterization of the liposoluble fraction of common wheat ( Triticum aestivum ) and spelt ( T. aestivum ssp. spelta ) flours using multivariate analysis$

Journal of the Science of Food and Agriculture, 2014

BACKGROUND: In the present paper, a special method for derivatization of liposoluble extract of c... more BACKGROUND: In the present paper, a special method for derivatization of liposoluble extract of common wheat and spelt flours was employed which enables simultaneous detection of fatty acid and non-saponifiable lipid fractions. RESULTS: Gas chromatographic-mass spectrometric analytical data for both fractions were separately analyzed by multivariate statistical techniques to model classes of different common wheat and spelt cultivars. Cluster analysis was used, and the results obtained revealed that better discrimination of samples was achieved by analyzing the peak area after 16 min retention time (non-saponifiable lipids), rather than commonly used peak area between 12 and 16 min (fatty acid fraction), due to more distinctive positions of points in factor space, even though the distances between points for fatty acid fraction (12-16 min) were greater. Similar results were obtained by principal components analysis, where all wheat points almost coincided whereas spelt showed good discrimination.

Journal of Experimental Botany, 2009

Rubisco activase (RCA) constrains the photosynthetic potential of plants at high temperatures (he... more Rubisco activase (RCA) constrains the photosynthetic potential of plants at high temperatures (heat stress). Endogenous levels of RCA could serve as an important determinant of plant productivity under heat-stress conditions. Thus, in this study, the possible relationship between expression levels of RCA and plant yield in 11 European cultivars of winter wheat following prolonged exposure to heat stress was investigated. In addition, the effect of a short-term heat stress on RCA expression in four genotypes of wheat, five genotypes of maize, and one genotype of Arabidopsis thaliana was examined. Immunoblots prepared from leaf protein extracts from control plants showed three RCA cross-reacting bands in wheat and two RCA cross-reacting bands in maize and Arabidopsis. The molecular mass of the observed bands was in the range between 40 kDa and 46 kDa. Heat stress affected RCA expression in a few genotypes of wheat and maize but not in Arabidopsis. In wheat, heat stress slightly modulated the relative amounts of RCA in some cultivars. In maize, heat stress did not seem to affect the existing RCA isoforms (40 kDa and 43 kDa) but induced the accumulation of a new putative RCA of 45-46 kDa. The new putative 45-46 kDa RCA was not seen in a genotype of maize (ZPL 389) that has been shown to display an exceptional sensitivity to heat stress. A significant, positive, linear correlation was found between the expression of wheat 45-46 kDa RCA and plant productivity under heat-stress conditions. Results support the hypothesis that endogenous levels of RCA could play an important role in plant productivity under supraoptimal temperature conditions.