Background and purpose: The objectives of this study were to estimate correlations between kernel... more Background and purpose: The objectives of this study were to estimate correlations between kernel oil content and morphological traits in two studied maize populations, and to estimate direct and indirect effects of yield components on kernel oil content. Materials and methods: The material for this study was developed by crossing progenies of high oil maize populations with two testers. The traits analyzed were kernel row number, 100-kernel weight, grain yield per plant and kernel oil content. Correlation coefficients were based on the ratio of joint variation and summary of individual variation of two traits (8). Standardized partial regression coefficients and levels of their significance were calculated according to the method of the inverse matrix (10). Results: In B73 testcrosses, oil content was in negative, and medium strong correlations with all studied traits were observed. In the second population, relation between these traits was also negative, but medium strong and wea...
Izvod Stvaranjem hibrida suncokreta tolerantnih na sulfonil-ureu tj. tribenuron-metil omogućeno j... more Izvod Stvaranjem hibrida suncokreta tolerantnih na sulfonil-ureu tj. tribenuron-metil omogućeno je korišćenje šire palete herbicida za efikasno suzbijanje korova u toku vegetacionog perioda. Zahvaljujući ovoj tolerantnosti znatno je olakšana borba protiv širokolisnih korova, posebno palamide, u usevu suncokreta. U ponudi Instituta za ratarstvo i povrtarstvo su četiri nova hibrida NS SUMO SUN, NS SUMO STAR, NS SUMO SjAj i NS SUMO SOL, registrovanih u 2016. godini. Hibridi priradaju grupi ranih i srednje ranih hibrida suncokreta, pokazuju visok potencijal rodnosti i imaju visok sadržaj ulja u semenu. Prilagođeni su gajenju u različitim agroekološkim uslovima jer imaju široku adaptabilnost na uslove proizvodnje. Svi hibridi imaju otpornost prema volovodu (Orobanche cumana Wallr), rase od A-E i visok stepen tolerantnosti prema Phomopsis-u, beloj truleži (Sclerotinia sclorotiorum), rđi (Puccinia helianthi) i dr. U radu su prikazani rezultati prinosa semena i ulja komisijskih ogleda Odeljenja za priznavanje sorti Ministarstva poljoprivrede i zaštite životne sredine Republike Srbije.
Izvod: Ogled je postavljen 2009. na Rimskim Šančevima sa ciljem da se ispita uticaj hemijske desi... more Izvod: Ogled je postavljen 2009. na Rimskim Šančevima sa ciljem da se ispita uticaj hemijske desikacije na masu 1000 semena kod tri linije suncokreta, kao i da se utvrdi optimalni momenat za njeno izvođenje. Desikacija je vršena preparatom Reglone forte sa dozom 2 l/ha. Tretiranje je vršeno svakih 7 dana, počev od završetka cvetanja do postizanja žetvene zrelosti. Kod sve tri linije utvrđena je visoko značajna razlika u masi 1000 semena, kao i visoko značajan uticaj momenta desikacije na masu 1000 semena. Najniža masa utvrđena je kod tretmana 7 dana posle cvetanja, a najviša kod tretmana 28 dana posle cvetanja, pri vlažnosti semena od 22,23%. Može se zaključiti da je sa aspekta mase 1000 semena, upravo to optimalno vreme za izvođenje hemijske desikacije. Između tretiranja 28 dana posle cvetanja i kasnijih tretmana nije bilo značajne razlike u masi 1000 semena, što govori da je završeno nakupljanje rezervnih materija u semenu.
Journal on processing and energy in agriculture, 2014
The seed was produced in the period from 2010 to 2012. Two seed variants were tested-non-treated ... more The seed was produced in the period from 2010 to 2012. Two seed variants were tested-non-treated seed and seed which was prior to application of biostimulators treated with metalaxyl-m. Prior to sowing, seed was treated with commercial preparations Slavol S, Bioplant Flora and the combination of the two. Results of this research point out that application of appropriate biostimulator has positive effect on growth and development of roots and shoots of seedling, while inadequate combination of biostimulators leads to inhibitory effect.
The objective was to assess the effect of chemical desiccation on seed germination and storabilit... more The objective was to assess the effect of chemical desiccation on seed germination and storability in three sunflower female inbred lines and to point at possible indicators for optimal performance time. Desiccation was performed with Diquat (2 l ha-1) applied at 7-day intervals from the end of flowering to harvest maturity. There were 6 treatments and control (untreated). Germination was tested 2 and 21 months after harvest. The highest germination was recorded when the desiccation was performed 35 days after flowering. Results showed that optimal moment for applying chemical desiccation when there is no negative effect on the seed germination is specific for each sunflower genotype. Seeds with a high level of germination (>90%) can be stored for 19 months without significant loss in germination, namely, it was not negatively affected by chemical desiccation. Seed moisture and growing degree-days can be used as reliable indicators for optimal desiccation time .
Za stvaranje visoko-produktivnih hibrida suncokreta potrebno je ukrstiti inbred linije, roditeljs... more Za stvaranje visoko-produktivnih hibrida suncokreta potrebno je ukrstiti inbred linije, roditeljske komponente hibrida, koje se razlikuju u većem broju osobina. Cilj ovog rada je bio da se ispita varijabilnost 110 inbred linija suncokreta iz kolekcije Instituta za ratarstvo i povrtarstvo u Novom Sadu za agronomski važne osobine i da se klasifikuju na osnovu sličnosti u pogledu ispitivanih osobina. Mereno je devet agronomski važnih osobina: visina stabla, prečnik glave, broj dana od nicanja do cvetanja, broj dana od nicanja do zrenja, prinos semena, procenat ulja, sadržaj oleinske kiseline, masa 1000 semena i procenat ljuske. Inbred linije su pokazale visoku varijabilnost za većinu ispitivanih osobina. Najveći koeficijent varijacije bio je kod prinosa semena (CV=42,51%), a najmanji kod perioda od nicanja do cvetanja (CV=8,86%) i zrenja (CV=8,27%). Analiza glavnih komponenata (PCA) izdvojila je inbred linije koji su se u većoj meri razlikovale od ostalih inbred linija prema sledećim osobinama: (I) inbred linije sa visokim prinosima semena i ulja, (II) inbred linije sa kratkim periodom od nicanja do cvetanja i (III) inbred linije sa visokim procentom ljuske, pogodne za specijalne namene. Prinos semena i procenat ulja kao najvažnije agronomske osobine su bile u pozitivnoj korelaciji, a i u pozitivnoj korelaciji sa najvećim brojem ispitivanih osobina. Podaci dobijeni u ovom radu biće korišćeni prilikom ukrštanja inbred linija u svrhu stvaranja hibrida suncokreta .
Czech Journal of Genetics and Plant Breeding, Jun 30, 2017
Ornamental sunflowers are widely cultivated for use as cut flowers and/or as garden plants. The o... more Ornamental sunflowers are widely cultivated for use as cut flowers and/or as garden plants. The objective of the study was to investigate breeding values of new F 1 ornamental sunflower hybrids using incomplete diallel crossing of four ornamental inbred lines: Heliopa, Talia, Iskra and Neoplanta. Six traits important for ornamental market use were studied. Additive gene effects prevailed in most tested traits except for lateral floral diameter and duration of lateral flowering, which exhibited non-additive effects. The results indicated that the Talia × Neoplanta hybrid combination was the most promising for cut flowers due to long and strong branches, relatively big lateral flowers while Heliopa × Iskra and Heliopa × Talia hybrids were suitable for use as garden plants due to strong plant habit, long flowering time and desirable plant height. The results obtained from this study will be helpful for further ornamental sunflower breeding.
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
The successful use of plant breeding for improving desirable traits requires the existence of gen... more The successful use of plant breeding for improving desirable traits requires the existence of genetic variability for these traits. Induced mutations are often used to create new genetic variability within a plant species. The objective of this study was to provide new genetic variability that can be exploited for improvement of important agronomic traits in sunflower production. The seeds of 8 sunflower inbred lines from the gene collection of the Institute of Field and Vegetable Crops, Novi Sad, Serbia were irradiated with gamma rays (γ) and fast neutrons (Nf) and treated in an ethyle-methane-sulphonate (ems) solution. The manifestation of mutations was mostly expressed in the M 2 and M 3 generations. Seven mutants were selected: 1 early flowering (L3ME), 2 short (L2MS and R1MS) and 1 high stature (R3MT), 2 with higher oil content (L1MO and R2MO) and 1 with branching (L4MBr). The stable progenies were evaluated in micro-plot tests in M 6 and M 7 generations for seed yield and other agronomic traits in comparison with their respective original lines. Further studies should be focused on testing new mutant lines in hybrid combinations, as well as determining the inheritance of mutant traits.
Cultivation of the ornamental sunflower (Helianthus annuus L.) has gained importance in recent ye... more Cultivation of the ornamental sunflower (Helianthus annuus L.) has gained importance in recent years. At present, this species has a significant place on the cut flower market (Fambrini et al. 2003). When sunflower production shifted to the cut flower market, the traits desired in the agronomic sunflower crop were not conducive for cut flowers (Burnett 2017). This called for new breeding in sunflowers to create cultivars that will perform well as cut flowers (Schoellhorn et al. 2003). The criteria for the global cut flower trade are good plant growth, the maximum number of flowers, coupled with a good stem length and flower size (Nair et al. 2002; Gurav et al. 2005). There are some important factors that affect the cut sunflower marketability: the diameter of the inflorescence and length of the stem (Cvejić et al. 2017). Two types of sunflower varieties are used for the cut flower market. The first type is a single-stem sunflower that tolerates dense planting. The second includes the branching varieties that are planted in 70 × 30 cm spacing, but the branching feature results in the production of 4-5 first-class flowers and 4-5 second-class flowers (Kaya et al. 2012). Singlestem plants are more desirable due to the longer and firmer stem and resistance to lodging despite dense planting. There is a presumption that resistance to lodging has been noted as an important and desirable
Background and purpose: The objectives of this study were to estimate correlations between kernel... more Background and purpose: The objectives of this study were to estimate correlations between kernel oil content and morphological traits in two studied maize populations, and to estimate direct and indirect effects of yield components on kernel oil content. Materials and methods: The material for this study was developed by crossing progenies of high oil maize populations with two testers. The traits analyzed were kernel row number, 100-kernel weight, grain yield per plant and kernel oil content. Correlation coefficients were based on the ratio of joint variation and summary of individual variation of two traits (8). Standardized partial regression coefficients and levels of their significance were calculated according to the method of the inverse matrix (10). Results: In B73 testcrosses, oil content was in negative, and medium strong correlations with all studied traits were observed. In the second population, relation between these traits was also negative, but medium strong and wea...
Izvod Stvaranjem hibrida suncokreta tolerantnih na sulfonil-ureu tj. tribenuron-metil omogućeno j... more Izvod Stvaranjem hibrida suncokreta tolerantnih na sulfonil-ureu tj. tribenuron-metil omogućeno je korišćenje šire palete herbicida za efikasno suzbijanje korova u toku vegetacionog perioda. Zahvaljujući ovoj tolerantnosti znatno je olakšana borba protiv širokolisnih korova, posebno palamide, u usevu suncokreta. U ponudi Instituta za ratarstvo i povrtarstvo su četiri nova hibrida NS SUMO SUN, NS SUMO STAR, NS SUMO SjAj i NS SUMO SOL, registrovanih u 2016. godini. Hibridi priradaju grupi ranih i srednje ranih hibrida suncokreta, pokazuju visok potencijal rodnosti i imaju visok sadržaj ulja u semenu. Prilagođeni su gajenju u različitim agroekološkim uslovima jer imaju široku adaptabilnost na uslove proizvodnje. Svi hibridi imaju otpornost prema volovodu (Orobanche cumana Wallr), rase od A-E i visok stepen tolerantnosti prema Phomopsis-u, beloj truleži (Sclerotinia sclorotiorum), rđi (Puccinia helianthi) i dr. U radu su prikazani rezultati prinosa semena i ulja komisijskih ogleda Odeljenja za priznavanje sorti Ministarstva poljoprivrede i zaštite životne sredine Republike Srbije.
Izvod: Ogled je postavljen 2009. na Rimskim Šančevima sa ciljem da se ispita uticaj hemijske desi... more Izvod: Ogled je postavljen 2009. na Rimskim Šančevima sa ciljem da se ispita uticaj hemijske desikacije na masu 1000 semena kod tri linije suncokreta, kao i da se utvrdi optimalni momenat za njeno izvođenje. Desikacija je vršena preparatom Reglone forte sa dozom 2 l/ha. Tretiranje je vršeno svakih 7 dana, počev od završetka cvetanja do postizanja žetvene zrelosti. Kod sve tri linije utvrđena je visoko značajna razlika u masi 1000 semena, kao i visoko značajan uticaj momenta desikacije na masu 1000 semena. Najniža masa utvrđena je kod tretmana 7 dana posle cvetanja, a najviša kod tretmana 28 dana posle cvetanja, pri vlažnosti semena od 22,23%. Može se zaključiti da je sa aspekta mase 1000 semena, upravo to optimalno vreme za izvođenje hemijske desikacije. Između tretiranja 28 dana posle cvetanja i kasnijih tretmana nije bilo značajne razlike u masi 1000 semena, što govori da je završeno nakupljanje rezervnih materija u semenu.
Journal on processing and energy in agriculture, 2014
The seed was produced in the period from 2010 to 2012. Two seed variants were tested-non-treated ... more The seed was produced in the period from 2010 to 2012. Two seed variants were tested-non-treated seed and seed which was prior to application of biostimulators treated with metalaxyl-m. Prior to sowing, seed was treated with commercial preparations Slavol S, Bioplant Flora and the combination of the two. Results of this research point out that application of appropriate biostimulator has positive effect on growth and development of roots and shoots of seedling, while inadequate combination of biostimulators leads to inhibitory effect.
The objective was to assess the effect of chemical desiccation on seed germination and storabilit... more The objective was to assess the effect of chemical desiccation on seed germination and storability in three sunflower female inbred lines and to point at possible indicators for optimal performance time. Desiccation was performed with Diquat (2 l ha-1) applied at 7-day intervals from the end of flowering to harvest maturity. There were 6 treatments and control (untreated). Germination was tested 2 and 21 months after harvest. The highest germination was recorded when the desiccation was performed 35 days after flowering. Results showed that optimal moment for applying chemical desiccation when there is no negative effect on the seed germination is specific for each sunflower genotype. Seeds with a high level of germination (>90%) can be stored for 19 months without significant loss in germination, namely, it was not negatively affected by chemical desiccation. Seed moisture and growing degree-days can be used as reliable indicators for optimal desiccation time .
Za stvaranje visoko-produktivnih hibrida suncokreta potrebno je ukrstiti inbred linije, roditeljs... more Za stvaranje visoko-produktivnih hibrida suncokreta potrebno je ukrstiti inbred linije, roditeljske komponente hibrida, koje se razlikuju u većem broju osobina. Cilj ovog rada je bio da se ispita varijabilnost 110 inbred linija suncokreta iz kolekcije Instituta za ratarstvo i povrtarstvo u Novom Sadu za agronomski važne osobine i da se klasifikuju na osnovu sličnosti u pogledu ispitivanih osobina. Mereno je devet agronomski važnih osobina: visina stabla, prečnik glave, broj dana od nicanja do cvetanja, broj dana od nicanja do zrenja, prinos semena, procenat ulja, sadržaj oleinske kiseline, masa 1000 semena i procenat ljuske. Inbred linije su pokazale visoku varijabilnost za većinu ispitivanih osobina. Najveći koeficijent varijacije bio je kod prinosa semena (CV=42,51%), a najmanji kod perioda od nicanja do cvetanja (CV=8,86%) i zrenja (CV=8,27%). Analiza glavnih komponenata (PCA) izdvojila je inbred linije koji su se u većoj meri razlikovale od ostalih inbred linija prema sledećim osobinama: (I) inbred linije sa visokim prinosima semena i ulja, (II) inbred linije sa kratkim periodom od nicanja do cvetanja i (III) inbred linije sa visokim procentom ljuske, pogodne za specijalne namene. Prinos semena i procenat ulja kao najvažnije agronomske osobine su bile u pozitivnoj korelaciji, a i u pozitivnoj korelaciji sa najvećim brojem ispitivanih osobina. Podaci dobijeni u ovom radu biće korišćeni prilikom ukrštanja inbred linija u svrhu stvaranja hibrida suncokreta .
Czech Journal of Genetics and Plant Breeding, Jun 30, 2017
Ornamental sunflowers are widely cultivated for use as cut flowers and/or as garden plants. The o... more Ornamental sunflowers are widely cultivated for use as cut flowers and/or as garden plants. The objective of the study was to investigate breeding values of new F 1 ornamental sunflower hybrids using incomplete diallel crossing of four ornamental inbred lines: Heliopa, Talia, Iskra and Neoplanta. Six traits important for ornamental market use were studied. Additive gene effects prevailed in most tested traits except for lateral floral diameter and duration of lateral flowering, which exhibited non-additive effects. The results indicated that the Talia × Neoplanta hybrid combination was the most promising for cut flowers due to long and strong branches, relatively big lateral flowers while Heliopa × Iskra and Heliopa × Talia hybrids were suitable for use as garden plants due to strong plant habit, long flowering time and desirable plant height. The results obtained from this study will be helpful for further ornamental sunflower breeding.
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
The successful use of plant breeding for improving desirable traits requires the existence of gen... more The successful use of plant breeding for improving desirable traits requires the existence of genetic variability for these traits. Induced mutations are often used to create new genetic variability within a plant species. The objective of this study was to provide new genetic variability that can be exploited for improvement of important agronomic traits in sunflower production. The seeds of 8 sunflower inbred lines from the gene collection of the Institute of Field and Vegetable Crops, Novi Sad, Serbia were irradiated with gamma rays (γ) and fast neutrons (Nf) and treated in an ethyle-methane-sulphonate (ems) solution. The manifestation of mutations was mostly expressed in the M 2 and M 3 generations. Seven mutants were selected: 1 early flowering (L3ME), 2 short (L2MS and R1MS) and 1 high stature (R3MT), 2 with higher oil content (L1MO and R2MO) and 1 with branching (L4MBr). The stable progenies were evaluated in micro-plot tests in M 6 and M 7 generations for seed yield and other agronomic traits in comparison with their respective original lines. Further studies should be focused on testing new mutant lines in hybrid combinations, as well as determining the inheritance of mutant traits.
Cultivation of the ornamental sunflower (Helianthus annuus L.) has gained importance in recent ye... more Cultivation of the ornamental sunflower (Helianthus annuus L.) has gained importance in recent years. At present, this species has a significant place on the cut flower market (Fambrini et al. 2003). When sunflower production shifted to the cut flower market, the traits desired in the agronomic sunflower crop were not conducive for cut flowers (Burnett 2017). This called for new breeding in sunflowers to create cultivars that will perform well as cut flowers (Schoellhorn et al. 2003). The criteria for the global cut flower trade are good plant growth, the maximum number of flowers, coupled with a good stem length and flower size (Nair et al. 2002; Gurav et al. 2005). There are some important factors that affect the cut sunflower marketability: the diameter of the inflorescence and length of the stem (Cvejić et al. 2017). Two types of sunflower varieties are used for the cut flower market. The first type is a single-stem sunflower that tolerates dense planting. The second includes the branching varieties that are planted in 70 × 30 cm spacing, but the branching feature results in the production of 4-5 first-class flowers and 4-5 second-class flowers (Kaya et al. 2012). Singlestem plants are more desirable due to the longer and firmer stem and resistance to lodging despite dense planting. There is a presumption that resistance to lodging has been noted as an important and desirable
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