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Search Results: 1 - 10 of 2261 matches for " Zdravkovi? Milan "
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The expression of tin gene in prolongated tomato fruit ripening - Lycopersicom esculentum Mill.
Zdravkovi? Jasmina,Markovi? ?ivoslav,Damjanovi? Milan,ZdravkoviMilan
Genetika , 2003, DOI: 10.2298/gensr0302077z
Abstract: Tomato selection programme, aiming to create a tomato hybrid with better fruit firmness, has been based on adding rin gene in perspective selection material. The fruit firmness has been based on decelerated ripening which prolongs the shelf life. Heterozygote genotypes (rin/+) have considerably longer shelf life that genotypes with uniform ripening (+/+). The effects of rin gene on shelf life have been examined on four experimental hybrids (K 56S K - 18, K - 64 and K -15 - rin/+ genetic configuration) compared with Atina Fl genotype (uniform ripening +/+) K - 91 selected, line (rin/rin) and Fino F1 (DRS) unknown genetic construction and very good fruit firmness. The parameter for shelf life has been the fruit weight loss during the preservation - from harvest till the fading. The weight loss has been recorded every 7th day during two months. The experimental hybrids showed good agro technical characteristics of mid early tomato intended for production in the open field. During the shelf life, the genotype K - 15 faded the most slowly, both in the group of green and mature fruits.
Characterization of onion genotypes by use of RAPD markers
Pavlovi? Nenad,Zdravkovi? Jasmina,Cviki? Dejan,ZdravkoviMilan
Genetika , 2012, DOI: 10.2298/gensr1202269p
Abstract: In order to estimate, at the molecular level, the divergence of parental lines that were used in diallel crossbreeding for production of superior offspring (F1 generation hybrids) at the Institute for Vegetable Crops, the molecular analysis using five RAPD markers for five pairs of parents has been performed. It gives an insight into their genetic polymorphism and the possibility of their further use in breeding programs. Information from this research has pioneered the application of molecular markers of onion in Serbia. Analyses were performed using the RAPD primers, which in previous studies established a high degree of polymorphism. In all five cases there was a corresponding amplification of DNA segments. From totally 50 bands analyzed, the length of fragments ranged from 500 to 3000 bp. Number of polymorphic band per example was 8 to 13. In our research at the level of the analyzed primers, a high degree of polymorphism between analyzed genotypes has been found. Based on UPGMA dendogram, analyzed genotypes were divided into two main clusters and two subclusters.
The usage of mutant genotypes in tomato selection for specific traits at the institute for vegetable crops
Zdravkovi? Jasmina,Markovi? ?ivoslav,ZdravkoviMilan,Mijatovi? Mirjana
Genetika , 2012, DOI: 10.2298/gensr1203701z
Abstract: In order to find a superdominant gene for yield, a collection of 350 samples with genes mutations and different expression in different phases of growth and development: fruit size, leaf shape, plant architecture, number of fruits, etc., has been studied (through multi-year research). Current seed production at the Institute for Vegetable Crops in Smederevska Palanka includes 26 hybrids and two in acceptation process, of different purposes and characteristics. The most common mutation genes in tomato selection at the Institute are: sp (self-pruning) inbuilt in determinant hybrids (Balkan F1, Marko F1, Rebus F1) and varieties (Narvik SPF, SP-109, Adonis), u (uniform ripening) - Lido F1, Atina F1, Danubius F1, rin (ripening inhibitor)- Nada F1, ampion F1, Sef F1, Sidra F1, Rebus F1, j (jointless) - Narvik, Adonis, SP-109, c (potato leaf) - Mi-13, Enigma F1, Rebus F1, Ph -2 (Phytophtora infestans resistance) - Luna F1, Zlatni jubilej F1, Sef F1. Quality of tomato fruits is defined by two groups of genes which determinate the organoleptic traits and nutrition composition. Organoleptic quality includes taste and smell, colour and texture of fruits established in variety differences, nutritive regime of plants, maturity phase and yield. Little is known about gene regulation, responsible for variation of these traits.
Combining abilities of inheriting first pod height of some French bean lines -Phaseolus vulgaris L.-
ZdravkoviMilan,Zdravkovi? Jasmina,Stankovi? Ljiljana,Pavlovi? Nenad
Genetika , 2005, DOI: 10.2298/gensr0501065z
Abstract: First pod height is an important trait, especially for snap bean since it enables the mechanical harvesting. Cultivars with low first pod height may be cut, damaged or not harvested by mechanical harvesting. In our investigation six different snap bean genotypes were used for examination of the first pod height and diallel analysis. The result was obtained by using method 2 model 1 GRIFFING (1956) for analysis of combining abilities. The mode of inheritance was different, as the results showed - from intermediate to super dominance, for both generations (F1 and F2). Analysis of combining abilities showed both influence of additive and dominant gene effects. Combination umadinka x Zora is suitable for further breeding for first pod height.
Senescence of rin, rin/rin, rin/+ and +/+ tomato fruits
Zdravkovi? Jasmina,Markovi? ?ivoslav,Stankovi? Ljiljana,ZdravkoviMilan
Genetika , 2004, DOI: 10.2298/gensr0403195z
Abstract: Ripening inhibitor (rin) gene is a spontaneous recessive mutant which changes fruit ripening aspects (most important synthesis of carotene, especially lycopene). It also delays fruit senescence. Tomato is a vegetable crop with specific maturing climax (pik). Tomato genotypes homozygote for rin gene does not have this maturing climax, so the ethyl-ene production and red, lycopene colour does not appear. In order to research the maturing process material from the final tomato selection cycle we used: pure line S-49 (genetic constitution u/u, with uniform ripening), line hom 4 (rin/rin, homozygote with ripening inhibitor) and hybrid combination 449 Fl (u/rin, heterozygote for ripening inhibitor). Fruits with uniform ripening and hybrids ripened simultaneously, while homozygote with rin gene did not ripe at all. Ethylene stimulates the appearance of yellow colour in rin fruits and the lycopene production. After treatment with ETEPHONE (0.1%) (Ethylene) fruits with uniform ripening, senescence more quickly, while hybrids senescence slowly. Rin homozygotes did not change colors, but the fruits senescence more quickly comparing to control. Ethylene treatment speeded the maturing and senescence process in tomato fruits. Extended maturing process as a result influence of rin gene, makes the new created hybrids a late maturing ones. On the other hand, the firmness of fruits is improved as well as the "shelf life", which enables longer transportation and storing, coordinated maturing according to market demands. The aim was to research the maturing according to market demands. The aim was to research the maturing process of rin heteroyzgote, and the reaction of some genotypes to treatment with RT-REL (Ethzlene) in order to decrease extremely late maturing.
The effect of genetic parameters on inheritance of the first pod hight in snap bean - Phaseolus vulgaris L.
ZdravkoviMilan,Zdravkovi? Jasmina,Pavlovi? Nenad,?or?evi? Radi?a
Genetika , 2003, DOI: 10.2298/gensr0301031z
Abstract: In order to research the inheritance, gene effect, combination abilities and genetic variance components, we investigated six divergent snap bean genotypes (Supernor, Darija, Grinkrop, Palana ka rana, umadinka and Zora) and their F1 progeny created by diallel crossing without reciprocals. For the trait of height of forming the first pod, variance of average value of parents and hybrids was highly significant. The value of dominant components (H1 and H2) was higher than additive component (D), meaning that dominant genes control the inheritance of number of pods per plant. The average level of domination √Hl/D is higher than 1, pointing to superdomination. Heritability in broader sence amounts 90% pointing to high contribution in inheriting the number of pods per plant.
Characteristics important for organic breeding of vegetable crops
Zdravkovi? Jasmina,Pavlovi? Nenad,Girek Zdenka,ZdravkoviMilan
Genetika , 2010, DOI: 10.2298/gensr1002223z
Abstract: The remarkable development and application of new genetic The Institute for Vegetable Crops possesses a rich germplasm collection of vegetables, utilized as gene resource for breeding specific traits. Onion and garlic breeding programs are based on chemical composition improvement. There are programs for identification and use of genotypes characterized by high tolerance to economically important diseases. Special attention is paid to breeding cucumber and tomato lines tolerant to late blight. As a result, late blight tolerant pickling cucumber line, as well as late blight tolerant tomato lines and hybrids are realized. Research on bean drought stress tolerance is initiated. Lettuce breeding program including research on spontaneous flora is started and interspecies hybrids were observed as possible genetic variability source. It is important to have access to a broad range of vegetable genotypes in order to meet the needs of organic agriculture production. Appreciating the concept of sustainable agriculture, it is important to introduce organic agriculture programs in breeding institutions.
Designing of support zones of concrete bridges to withstand action of static and dynamic load
Gligorijevi? Milan,Zdravkovi? Slavko,Spasojevi?-?urdilovi? Marija
Facta Universitatis Series : Architecture and Civil Engineering , 2010, DOI: 10.2298/fuace1002235g
Abstract: In the paper are presented some of the acquired experiences in designing and construction of bridge structures in several countries, with a special attention to the analysis of support zones and expansion joints behavior of a number of road bridges. During destruction or damage of bridges, there is a small probability, but still there, that the human lives might be endangered (Kobe, Japan 17th January 1995); what is likely, however, is that it will be very difficult to help the injured in the region. Considering that the characteristics of removal of supports has a great influence on the behavior of the entire bridge structure, the design of support joints and connections must be paid due attention. In the recent decades, efforts are made to enhance research of all engineering structure, and thus the bridge structures and their weak points.
Variability and heritability of average yield of onion bulb - Alium сeрa L.
Pavlovi? Nenad,Ze?evi? Bogoljub,ZdravkoviMilan,Ivanovi? Miroslav 1
Genetika , 2003, DOI: 10.2298/gensr0303149p
Abstract: In order to investigate the variability of bulb yield, the trial was set up on an experimental plot of the Centre for Vegetable Crops in Smederevska Palanka during 1997 and 1998. The trial was performed by applying the method of random block system in five replications. Ten varieties of different geographical origins were included as the research material. The recorded values of the investigated features were determined by applying the variance analysis of a two-factorial trial model 2 (Had ivukovi , 1991). The components of the phenotype variance, genotype and phenotype coefficient of variation and heritability in broad sense were estimated according to Singh and Chaudhary (1976). Significant variability was recorded for yield bulbs in both years of investigation. For this parameter, genotype variance was greater than the enviromental. Phenotype coefficient of variation (PCV) was greater than genotype coefficient of variation (GCV). Heritability confirmed that the genotype variability was stronger in the overall phenotype variability.
Variability and heritability coefficient of average dry matter content in onion (Allium cepa L.) bulbs
Pavlovi? Nenad,Cviki? Dejan,ZdravkoviMilan,?or?evi? Radi?a
Genetika , 2007, DOI: 10.2298/gensr0701063p
Abstract: In order to research the variability of average dry matter content in onion bulbs, the trial has been set up on the experimental plot in the Centre for Vegetable Crops in Smederevska Palanka during 2000. and 2001. The trial has been performed by applying the method of random block design with five replicas. Ten cultivars of different geographical origin have been used. Examined characteristics were determined by applying the variance analysis of two-factorial trial - model 2. Hadzivukovic, 1991. The components of phenotype variance, genotype and phenotype coefficient of variance and heritability in broader sense have been calculated according to SINGH and CHAUDHARY (1976). The significant variability has been found for dry matter content in bulbs during both years of research. The researched trait had a greater genotype variance than out door conditions factor variance and the coefficient of phenotype variation greater than genetic variance coefficient. High percentage of genetic variability in total phenotype variability has been confirmed by high heritability. .
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