Although flower pollinator interactions are known to be mediated by floral traits, not enough attention has been paid the research of secretory tissues and volatile components sunflower disc florets as potentially important parameters in breeding programs. (1) To our knowledge, this is first integrated study aimed at better understanding attractiveness capitula insects. In study, we have made a very detailed comparative analysis characterization (VOCs) 10 wild perennial Helianthus species....

Sunflower seeds are key agricultural commodities due to their nutritional and industrial value. This study aimed analyze the distribution of targeted bioactive compounds assess physical properties across 27 sunflower seed genotypes, including parental lines F1 F2 hybrids, cultivated in Serbia. Various analytical techniques were employed determine chemical composition characteristics seeds. research revealed significant genetic variability fatty acid profiles, with differences polyunsaturated...

Sunflower has been proposed as a potential crop model for an adaptation to changing environment and special attention should be paid testing hybrids under different environments. Additive main effects multiplicative interaction (AMMI) supplemented with genotype by (GGE) were used dissection of evaluation The research included 24 sunflower grown across twelve AMMI analysis identified four significant principal components (IPC), while in GGE biplot the first two IPCs accounted together 44.59%....

Discovery of tribenuron-methyl resistant wild Helianthus annuus L. population (ANN-KAN) created an opportunity for expansion sunflower herbicide resistance breeding program. The aim this study was development hybrids to tribenuron-methyl. Creation would enable the use a wider palette herbicides sunflower, more efficient chemical control Cirsium arvense and economically profitable post-emergence some annual broad-leaves weeds in sunflower. Original populations SURES-1 SURES-2 are homozygous...

Sunflower pollination has been a subject of research for more than 40 years at the Institute Field and Vegetable Crops in Novi Sad, Serbia. Since first experiments 1970s, importance climatic conditions was acknowledged analyzed as key factor performance plants pollinators. Climatic conditions, disease pest problems changed significantly during this period, but sunflower production technology breeding also advanced making seed stable. Nonetheless, quality agronomic practices still varies...

Climate change projections for the 21st century pose great threats to semi-arid regions, impacting seed production and quality of sunflowers. Crop yields are negatively affected by climate variability, especially in event droughts during crucial growth stages. Understanding relationships between agrometeorological, genetic, agronomic factors is maintaining crop sustainability. Optimal sowing dates an essential condition maximizing genetic potential, but challenges come from annual weather...

Sunflower is attacked by more than 40 different diseases of which only a certain number causes serious reduction seed yield. One the most damaging downy mildew, caused fungus Plasmopara halstedii (Farl.) Berl. et de Toni (syn. helianthi Novot.). mildew has great economic importance in all countries where sunflower grown. When meteorological conditions during vegetation period become favourable for disease development, damages produce considerable reducing yield and oil content.

Using the standard method, we studied germination energy of seed seven different sunflower genotypes (five hybrids and two cytoplasmically male sterile female lines) developed at Institute Field Vegetable Crops in Novi Sad. The was treated with fungicides benomil, metalaxyl fludioxonil insecticides thiamethoxam imidacloprid kept for a year storage facility. Analysis variance showed that there were highly significant differences among genotypes, chemical treatments, periods. Highly also...

The aim of this study was to determine the variability oil and protein content in winter rapeseed cultivars affected by seeding date. Four (Banaćanka, Slavica, Express, Valeska) were sown at six dates (SD1-21 August, SD2-31 SD3-10 September, SD4-21 SD5-1 October, SD6-9 October) across two cropping seasons. trial arranged as Randomized Complete Block Design (RCBD) with four replications. Analysis variance (ANOVA) showed that effect year, cultivar date highly significant for content. Increased...

Path coefficient analysis was used to separate direct and indirect effects of studied traits on seed oil content yield, identify that could be as selection criteria in sunflower breeding. Significant highly significant correlations were found between most the examined traits. Highly negative have been established stem diameter, total leaf area per plant, head diameter 1,000-seed weight one side other. positive yield number seeds head, The 1,000 had a effect yield. has demonstrated content....

A three-year experiment (2008, 2009, 2010) on twenty sunflower hybrids grown in 13 (2010) to 15 (2009, 2008) locations the region of Vojvodina and central Serbia was carried out order study GEI (genotype × environment interaction) oil yield stability using non-parametric measures stability. The test indicated presence significant crossover interaction [G(E) E(G)]. Non-parametric Si (1) (2) were used determine hybrids. level association among assessed Sperman's rank correlation. Significant...

Sunflower is an important source of oil and proteins necessary for development healthy humans.By producing sunflower seeds, the main gains a possibility to use in different forms.The content observed parameters varies depends on numerous factors.Environmental factors, choice genotypes measures that apply during production seed all influence seed, as well germination, one most characteristics.Based results obtained by comparing parameters, further interdependence (correlation) quality...

The two most important criteria for introducing new confectionary hybrids into production are high seed and protein yield. That is why it to find the traits that measurable, at same time show a strong correlation with yield, so they can be used as hybrid breeding. Results achieved during 2008 locations Rimski Sancevi (Region of Vojvodina) Kula (Central Serbia) expressing higher yields in comparison standards (Vranac Cepko) though lower oil content. A very positive was determined between...

The development of sunflower hybrids with high genetic potential for seed and oil yields requires information on the general combining ability (GCA) specific (SCA) plant height head diameter in F1 generation. Used this study were thirteen new divergent cms inbred lines (A), three Rf restorers utilized as testers, their hybrids. A-lines, Rf-testers differed significantly mean values diameter. mode inheritance was superdominance better parent it dominance parent. Highly significant positive...

Significant manifestation of heterosis for agronomically important traits is the main precondition obtaining productive sunflower hybrids (Škorić etal., 2006). Development high-yielding and stable based on interspecific hybridization requires knowledge heterotic effects occurring in F1 generation. Heterosis seed yield per plant, total number head 1,000-seed weight was studied obtained by line × tester method. The seven female inbred lines used study had been developed hybridization, while...

In the present study, thirteen SSRs (Simple Sequence Repeats) were employed for screening level of similarity between sunflower parental lines and progeny obtained in final stages selection. Another aim study was to compare success making isogenic through Line P (donor line) used as a donor downy mildew gene Pl6and backcrossed with four commercial inbred (A, B, C D) susceptible mildew. HAP3, DNA-specific primer, test transfer Pl6gene from line Pl6 Pl7 generations. It found that all resistant...

Seed quality is a complex character that determined by large number of parameters.Because this, knowing the interrelationships among these parameters utmost importance, not only from point view plant selection but also standpoint crop production itself.The objective this study was to investigate influence season and region (i.e., environmental conditions) on yield sunflower hybrid seed.The conducted seed hybrids NS-H-111 Rimi had been produced at sites located in Serbia Ukraine.The following...

Path coefficient analysis was applied to gain information on direct and indirect effects of studied traits (seed oil content, kernel seed protein head diameter, ratio plant height) sunflower yield. Traits which exhibit the highest yield will be used as a selection criterion in confectionary breeding. The research conducted during three vegetation seasons 22 experimental hybrids, created breeding program Institute Field Vegetable Crops. Among largest number examined traits, significant highly...

One of the directions in sunflower breeding is selection for resistance to broomrape.The population broomrape has been stable Serbia a long period time, but racial composition changed recent years, with race E being predominant regions north Bačka and Banat.Cultivated genetically narrow deficient many desirable genes.Its genetic variability can be increased by use wild species interspecific hybridization.The 15 new experimental hybrids was tested on locations (Pačir) during three years...

Hybrid sunflower seed, regularly protected with chemicals, is used for sowing in the second or third year if not first after production.In that case, it stored warehouses, and length of storage period may significantly affect quality seeds.An experiment was conducted Laboratory Seed Testing Institute Field Vegetable Crops Novi Sad, order to examine effect on germination treated seeds three commercial hybrids Sad Institute.The seed fungicides -metalaxyl fludioxonil, as well insecticides...

The most important criteria for introducing new confectionary hybrids into the production is high protein yield. Path coefficient analysis was used to obtain information on direct and indirect effects of studied traits (seed oil content, kernel seed yield, mass 1000 seeds, ratio hull ratio) research conducted during three vegetation seasons, 22 experimental sunflower created in breeding program at Institute Field Vegetable Crops. Strong very strong correlations were found among largest...

Bearing in mind that the sunflower production Serbia is extensive, it very important to select a hybrid will achieve stable and high seed oil yields different enviromental conditions. The objective of study was identify most hybrids for yield using AMMI model analysis. Nine newly developed early, medium early late were tested. Hybrids grown locations across Northern during two growing seasons (2013-2014). Selected are geographically close, but environmentally terms soil, rainfalls...