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Luiz Antonio Biasi - One of the best experts on this subject based on the ideXlab platform.
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Acta Scientiarum
2016Co-Authors: Summaira Walker, Luiz Antonio Biasi, Michael Andrew, Maringá Brasil, Mariane Ruzza Schuck, Flavia Maia Moreira, Aparecido Lima Da Silva, Summaira Riaz, Michael Andrew WalkerAbstract:Use of microsatellite markers to assess the identity and genetic diversity of Vitis labrusca and Vitis rotundifolia cultivar
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physical and chemical characteristics of grape clusters from Vitis rotundifolia cultivars
Semina-ciencias Agrarias, 2010Co-Authors: Sergio Denega, Luiz Antonio Biasi, Flavio Zanette, Marcio Furlan Maggi, Sidnei Osmar Jadoski, Sirlei Janine BlaskeviczAbstract:The goal of this work was to evaluate physical and chemical cluster characteristics of eight Vitis rotundifolia cultivars: Topsail, Magnolia, Noble, Roanoke, Magoon, Regale, Bontiful and Dixie. The evaluated clusters were collected from a preexistent Vitis rotundifolia orchard located at the Canguiri Experimental Station of the Federal University of Parana, in Pinhais-PR. The following variables were evaluated for the 2004 and 2005 crops: total cluster mass, berry mass per cluster, rachis mass, number of berries per cluster and berry diameter. A completely random design with 50 replications was used and each cluster has been considered as a parcel. The chemical characteristics of the juice were evaluated: pH, acidity and total soluble solids. For these analyses, a completely random design with 10 replications was used with 5 clusters per plot. The cultivar Noble stood up from the rest in terms of total soluble solids content for both crops (2004 and 2005) with 12.7° and 13.7° Brix respectively. The cultivar Dixie presented the highest pH (3.04) in 2004 and the cultivar Magnolia in 2005, which present the lower acid content in both years. The cultivars Magnolia and Roanoke stood up in 2004 and 2005 respectively in total cluster mass, mass of berries and rachis mass. In terms of number of berries per cluster, the cultivars Roanoke and Magnolia presented the highest numbers in 2004 while in 2005 the highest numbers were presented by the Roanoke, Regale and Noble cultivars. In 2004, the average berry mass of the cultivars Magnolia and Topsail was superior to the others being the last cited cultivar also superior in this variable in 2005. The cultivar Noble presented the smallest diameter of berries. It was possible to conclude that Vitis rotundifolia cultivars, due to their low total soluble solids content, high acidity and low pH are not recommended for fresh consumption but present potential for juice, jam and jelly production. Furthermore, the cultivars presented small clusters with few berries, being considered inferior than clusters from other american grapevines.
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acclimatization of vr043 43 Vitis vinifera x Vitis rotundifolia grapevine rootstock
Scientia Agricola, 2010Co-Authors: Marilia Pereira Machado, Luiz Antonio Biasi, Marlice Ritter, Luciana Lopes Fortes Ribas, Flavio ZanetteAbstract:The pre-acclimatization stage can be used to improve micropropagation protocols and increase the yield of produced plants. The influence of sucrose and photon flux density (PFD) levels on the acclimatization of in vitro-grown 'VR043-43' (Vitis vinifera x Vitis rotundifolia) grapevine rootstocks was evaluated. Rooted shoots were obtained from 4-week-old in vitro shoots cultivated in QL (Quoirin and Lepoivre, 1977) culture medium supplemented with 15, 30 and 45 g L-1 of sucrose. The experiment was kept in a 25 ± 2oC growth room, under 16-h photoperiod and PFD of 18 µmol m-2 s-1 or 43 µmol m-2 s-1. Plants were transferred to an intermittent misting system greenhouse for 10 d followed by 20 d of once-a-day watering routine using a handheld hose. Plant height was influenced by sucrose concentration, and shoots produced on media supplemented with 30 g L-1 sucrose were the tallest (5.0 cm). The largest leaf area was obtained with 31.3 g L-1 of sucrose, under the PFD of 43 µmol m-2 s-1 (13.3 cm²). Absence of sucrose in the culture medium led to a significant reduction in leaf area at both PFDs. Shoot (aerial part) dry matter was largest when 30 or 45 g L-1 of sucrose (17.5 and 16.7 mg per plant, respectively) were used. Microcuttings rooted in all sucrose concentrations tested. The highest survival percentage (100%) during ex vitro acclimatization was obtained for shoots cultured in media supplemented with 45 g L-1 of sucrose under both PFDs tested.
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phenological behaviour of Vitis rotundifolia cultivars in pinhais pr
Semina-ciencias Agrarias, 2010Co-Authors: Sergio Denega, Luiz Antonio Biasi, Flavio ZanetteAbstract:The aim of this work was to characterize the phenological cycle of nine Vitis rotundifolia cultivars during the 2004/2005 season. The cultivars were Bontiful, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke e Topsail. The experiment was performed on an orchard implanted in 1999 at the Canguiri Experimental Station of the Federal University of Parana in Pinhais-PR. The phenology of two adult plants of each cultivar was monitored. The recorded phenological stages were: 1) Dormant bud; 2) Swollen bud; 3) Wool bud; 4) Green tip; 5) Bud burst (first leaf appearance); 6) Two to three leaves unfolded; 7) Five to six leaves unfolded; 8) Fully developed inflorescence; 9) Trace bloom (flowerhoods detached); 10) Full flowering (50% of the flowerhoods fallen); 11) Fruit set; 12) Groat-sized berries; 13) Pea-sized berries; 14) 50% filled berries (beginning to touch berries); 15) Final size; 16) Color change; 17) Berries ripe for harvest; and 18) End of harvesting. A very long phenological cycle was observed when compared to species such as Vitis vinifera and Vitis labrusca . These evaluations allowed us to conclude that: a) there is no difference in the phenological cycle periods between bronze and dark skinned cultivars; b) cultivars presented desuniform wool bud to full flowering cycle, ranging from 25 days (‘Regale’) to 81 days (‘Creek’); c) the cultivar Regale presented the longest cycle (203 days) from full flowering to harvest and the cultivar Creek the shortest (136 days). The evaluated cultivars additionally presented desuniform ripening and a tendency to drop berries.
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caracteristicas fisicas e quimicas dos cachos de cultivares de Vitis rotundifolia 1 physical and chemical characteristics of grape clusters from Vitis rotundifolia cultivars
2010Co-Authors: Sergio Denega, Luiz Antonio Biasi, Flavio Zanette, Marcio Furlan Maggi, Sidnei Osmar Jadoski, Sirlei Janine BlaskeviczAbstract:The goal of this work was to evaluate physical and chemical cluster characteristics of eight Vitis rotundifolia cultivars: Topsail, Magnolia, Noble, Roanoke, Magoon, Regale, Bontiful and Dixie. The evaluated clusters were collected from a preexistent Vitis rotundifolia orchard located at the Canguiri Experimental Station of the Federal University of Parana, in Pinhais-PR. The following variables were evaluated for the 2004 and 2005 crops: total cluster mass, berry mass per cluster, rachis mass, number of berries per cluster and berry diameter. A completely random design with 50 replications was used and each cluster has been considered as a parcel. The chemical characteristics of the juice were evaluated: pH, acidity and total soluble solids. For these analyses, a completely random design with 10 replications was used with 5 clusters per plot. The cultivar Noble stood up from the rest in terms of total soluble solids content for both crops (2004 and 2005) with 12.7° and 13.7° Brix respectively. The cultivar Dixie presented the highest pH (3.04) in 2004 and the cultivar Magnolia in 2005, which present the lower acid content in both years. The cultivars Magnolia and Roanoke stood up in 2004 and 2005 respectively in total cluster mass, mass of berries and rachis mass. In terms of number of berries per cluster, the cultivars Roanoke and Magnolia presented the highest numbers in 2004 while in 2005 the highest numbers were presented by the Roanoke, Regale and Noble cultivars. In 2004, the average berry mass of the cultivars Magnolia and Topsail was superior to the others being the last cited cultivar also superior in this variable in 2005. The cultivar Noble presented the smallest diameter of berries. It was possible to conclude that Vitis rotundifolia cultivars, due to their low total soluble solids content, high acidity and low pH are not recommended for fresh consumption but present potential for juice, jam and jelly production. Furthermore, the cultivars presented small clusters with few berries, being considered inferior than clusters from other american grapevines.
Gunawati Gunawan - One of the best experts on this subject based on the ideXlab platform.
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High-density linkage maps and loci for berry color and flower sex in muscadine grape (Vitis rotundifolia)
Theoretical and Applied Genetics, 2019Co-Authors: Jennifer Lewter, Margaret L. Worthington, John R. Clark, Aruna V. Varanasi, Lacy Nelson, Christopher L. Owens, Patrick Conner, Gunawati GunawanAbstract:Key message Linkage maps of muscadine grape generated using genotyping-by-sequencing (GBS) provide insight into genome collinearity between Muscadinia and EuVitis subgenera and genetic control of flower sex and berry color. Abstract The muscadine grape, Vitis rotundifolia , is a specialty crop native to the southeastern USA. Muscadine vines can be male, female, or perfect-flowered, and berry color ranges from bronze to black. Genetic linkage maps were constructed using genotyping-by-sequencing in two F_1 populations segregating for flower sex and berry color. The linkage maps consisted of 1244 and 2069 markers assigned to 20 linkage groups (LG) for the ‘Black Beauty’ × ‘Nesbitt’ and ‘Supreme’ × ‘Nesbitt’ populations, respectively. Data from both populations were used to generate a consensus map with 2346 markers across 20 LGs. A high degree of collinearity was observed between the genetic maps and the Vitis vinifera physical map. The higher chromosome number in muscadine (2 n = 40) compared to V. vinifera (2 n = 38) was accounted for by the behavior of V. vinifera chromosome 7 as two independently segregating LGs in muscadine. The muscadine sex locus mapped to an interval that aligned to 4.64–5.09 Mb on V. vinifera chromosome 2, a region which includes the previously described V. vinifera subsp. sylvestris sex locus. While the MYB transcription factor genes controlling fruit color in V. vinifera are located on chromosome 2, the muscadine berry color locus mapped to an interval aligning to 11.09–11.88 Mb on V. vinifera chromosome 4, suggesting that a mutation in a different gene in the anthocyanin biosynthesis pathway determines berry color in muscadine. These linkage maps lay the groundwork for marker-assisted breeding in muscadine and provide insight into the evolution of Vitis species.
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high density linkage maps and loci for berry color and flower sex in muscadine grape Vitis rotundifolia
Theoretical and Applied Genetics, 2019Co-Authors: Jennifer Lewter, Patrick J Conner, John R. Clark, Aruna V. Varanasi, Lacy Nelson, Christopher L. Owens, Margaret Worthington, Gunawati GunawanAbstract:Linkage maps of muscadine grape generated using genotyping-by-sequencing (GBS) provide insight into genome collinearity between Muscadinia and EuVitis subgenera and genetic control of flower sex and berry color. The muscadine grape, Vitis rotundifolia, is a specialty crop native to the southeastern USA. Muscadine vines can be male, female, or perfect-flowered, and berry color ranges from bronze to black. Genetic linkage maps were constructed using genotyping-by-sequencing in two F1 populations segregating for flower sex and berry color. The linkage maps consisted of 1244 and 2069 markers assigned to 20 linkage groups (LG) for the ‘Black Beauty’ × ‘Nesbitt’ and ‘Supreme’ × ‘Nesbitt’ populations, respectively. Data from both populations were used to generate a consensus map with 2346 markers across 20 LGs. A high degree of collinearity was observed between the genetic maps and the Vitis vinifera physical map. The higher chromosome number in muscadine (2n = 40) compared to V. vinifera (2n = 38) was accounted for by the behavior of V. vinifera chromosome 7 as two independently segregating LGs in muscadine. The muscadine sex locus mapped to an interval that aligned to 4.64–5.09 Mb on V. vinifera chromosome 2, a region which includes the previously described V. vinifera subsp. sylvestris sex locus. While the MYB transcription factor genes controlling fruit color in V. vinifera are located on chromosome 2, the muscadine berry color locus mapped to an interval aligning to 11.09–11.88 Mb on V. vinifera chromosome 4, suggesting that a mutation in a different gene in the anthocyanin biosynthesis pathway determines berry color in muscadine. These linkage maps lay the groundwork for marker-assisted breeding in muscadine and provide insight into the evolution of Vitis species.
Colleta, Vanessa Dalla - One of the best experts on this subject based on the ideXlab platform.
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Avaliação da resistência de cultivares de Vitis rotundifolia à pérola-da-terra (Hemiptera: Margarodidae) na região sul do Brasil
Editora da Universidade Estadual de Maringá - EDUEM, 2010Co-Authors: Colleta, Vanessa DallaAbstract:A pérola-da-terra Eurhizococcus brasiliensis (Hempel in Wile) (Hemiptera: Margarodidae) é uma das principais pragas da videira na Região Sul do Brasil. Neste trabalho, foi avaliada a resistência de cultivares de Vitis rotundifolia (Bountiful, Chief, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke, Sumith e Topsail) à pérola-da-terra, comparando-as com o porta-enxerto 101-14 (Vitis riparia x Vitis rupestris). O experimento foi instalado em área naturalmente infestada pela praga, avaliando-se a resistência dos genótipos mediante a contagem do número de insetos presentes nas raízes, peso seco das plantas (parte aérea + raízes) e mortalidade após três anos. Todas as cultivares de V. rotundifolia apresentaram baixo índice de infestação pela pérola-da-terra, maior vigor e menor mortalidade quando comparadas ao porta-enxerto 101-14. Todas as plantas do porta-enxerto 101-14 morreram após o segundo ano de plantio. As cultivares Bountiful, Chief, Magoon, Magnólia e Regale apresentaram reduzida infestação pela praga, o que demonstra a existência de resistência do tipo antixenose e/ou antibiose. A cultivar Dixie foi a mais infestada pela cochonilha, porém apresentou vigor elevado, indicando a existência de tolerância entre os genótipos. Os resultados demonstram que as cultivares de V. rotundifolia Bountiful, Chief, Magoon, Magnólia e Regale apresentam reduzida infestação por E. brasiliensis e podem ser empregadas como produtoras e/ou fontes de resistência à praga em programas de melhoramento
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Avaliação da resistência de cultivares de Vitis rotundifoliaà pérola-da-terra (Hemiptera: Margarodidae) na região sul do Brasil - DOI: 10.4025/actasciagron.v32i2.3151
Universidade Estadual de Maringá, 2010Co-Authors: Botton Marcos, Colleta, Vanessa DallaAbstract:Brazilian ground pearl Eurhizococcus brasiliensis (Hempel in Wile) (Hemiptera: Margarodidae) is one of the main grape pests in southern Brazil. The resistance of Vitis rotundifolia cultivars (Bountiful, Chief, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke, Sumith and Topsail) to Brazilian ground pearl was evaluated by comparison with 101-14 (Vitis riparia x Vitis rupestris) rootstock. The experiment was conducted in a naturally infested field, by measuring pest infestation on roots, dry weight of plants (leaves + roots) and mortality during three years. V. rotundifolia cultivars showed a reduced infestation by the pest, a higher vigor and lower mortality when compared to 101-14 rootstock. All 101-14 plants were killed by the pest after the second year in the field. The cultivars Bountiful, Chief, Magoon, Magnolia and Regale had low pest infestation, showing antixenosis or antibiosis resistance. The Dixie cultivar showed a higher pest infestation; however, this was associated with high plant vigor, suggesting the existence of tolerance. The results show that V. rotundifolia cultivars Bountiful, Chief, Magoon, Magnolia and Regale showed a low infestation by E. brasiliensis and can be alternatives for direct fruit production or pest resistance source in plant breeding programsA pérola-da-terra Eurhizococcus brasiliensis (Hempel in Wile) (Hemiptera: Margarodidae) é uma das principais pragas da videira na Região Sul do Brasil. Neste trabalho, foi avaliada a resistência de cultivares de Vitis rotundifolia (Bountiful, Chief, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke, Sumith e Topsail) à pérola-da-terra, comparando-as com o porta-enxerto 101-14 (Vitis riparia x Vitis rupestris). O experimento foi instalado em área naturalmente infestada pela praga, avaliando-se a resistência dos genótipos mediante a contagem do número de insetos presentes nas raízes, peso seco das plantas (parte aérea + raízes) e mortalidade após três anos. Todas as cultivares de V. rotundifolia apresentaram baixo índice de infestação pela pérola-da-terra, maior vigor e menor mortalidade quando comparadas ao porta-enxerto 101-14. Todas as plantas do porta-enxerto 101-14 morreram após o segundo ano de plantio. As cultivares Bountiful, Chief, Magoon, Magnólia e Regale apresentaram reduzida infestação pela praga, o que demonstra a existência de resistência do tipo antixenose e/ou antibiose. A cultivar Dixie foi a mais infestada pela cochonilha, porém apresentou vigor elevado, indicando a existência de tolerância entre os genótipos. Os resultados demonstram que as cultivares de V. rotundifolia Bountiful, Chief, Magoon, Magnólia e Regale apresentam reduzida infestação por E. brasiliensis e podem ser empregadas como produtoras e/ou fontes de resistência à praga em programas de melhoramento
Flavio Zanette - One of the best experts on this subject based on the ideXlab platform.
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physical and chemical characteristics of grape clusters from Vitis rotundifolia cultivars
Semina-ciencias Agrarias, 2010Co-Authors: Sergio Denega, Luiz Antonio Biasi, Flavio Zanette, Marcio Furlan Maggi, Sidnei Osmar Jadoski, Sirlei Janine BlaskeviczAbstract:The goal of this work was to evaluate physical and chemical cluster characteristics of eight Vitis rotundifolia cultivars: Topsail, Magnolia, Noble, Roanoke, Magoon, Regale, Bontiful and Dixie. The evaluated clusters were collected from a preexistent Vitis rotundifolia orchard located at the Canguiri Experimental Station of the Federal University of Parana, in Pinhais-PR. The following variables were evaluated for the 2004 and 2005 crops: total cluster mass, berry mass per cluster, rachis mass, number of berries per cluster and berry diameter. A completely random design with 50 replications was used and each cluster has been considered as a parcel. The chemical characteristics of the juice were evaluated: pH, acidity and total soluble solids. For these analyses, a completely random design with 10 replications was used with 5 clusters per plot. The cultivar Noble stood up from the rest in terms of total soluble solids content for both crops (2004 and 2005) with 12.7° and 13.7° Brix respectively. The cultivar Dixie presented the highest pH (3.04) in 2004 and the cultivar Magnolia in 2005, which present the lower acid content in both years. The cultivars Magnolia and Roanoke stood up in 2004 and 2005 respectively in total cluster mass, mass of berries and rachis mass. In terms of number of berries per cluster, the cultivars Roanoke and Magnolia presented the highest numbers in 2004 while in 2005 the highest numbers were presented by the Roanoke, Regale and Noble cultivars. In 2004, the average berry mass of the cultivars Magnolia and Topsail was superior to the others being the last cited cultivar also superior in this variable in 2005. The cultivar Noble presented the smallest diameter of berries. It was possible to conclude that Vitis rotundifolia cultivars, due to their low total soluble solids content, high acidity and low pH are not recommended for fresh consumption but present potential for juice, jam and jelly production. Furthermore, the cultivars presented small clusters with few berries, being considered inferior than clusters from other american grapevines.
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acclimatization of vr043 43 Vitis vinifera x Vitis rotundifolia grapevine rootstock
Scientia Agricola, 2010Co-Authors: Marilia Pereira Machado, Luiz Antonio Biasi, Marlice Ritter, Luciana Lopes Fortes Ribas, Flavio ZanetteAbstract:The pre-acclimatization stage can be used to improve micropropagation protocols and increase the yield of produced plants. The influence of sucrose and photon flux density (PFD) levels on the acclimatization of in vitro-grown 'VR043-43' (Vitis vinifera x Vitis rotundifolia) grapevine rootstocks was evaluated. Rooted shoots were obtained from 4-week-old in vitro shoots cultivated in QL (Quoirin and Lepoivre, 1977) culture medium supplemented with 15, 30 and 45 g L-1 of sucrose. The experiment was kept in a 25 ± 2oC growth room, under 16-h photoperiod and PFD of 18 µmol m-2 s-1 or 43 µmol m-2 s-1. Plants were transferred to an intermittent misting system greenhouse for 10 d followed by 20 d of once-a-day watering routine using a handheld hose. Plant height was influenced by sucrose concentration, and shoots produced on media supplemented with 30 g L-1 sucrose were the tallest (5.0 cm). The largest leaf area was obtained with 31.3 g L-1 of sucrose, under the PFD of 43 µmol m-2 s-1 (13.3 cm²). Absence of sucrose in the culture medium led to a significant reduction in leaf area at both PFDs. Shoot (aerial part) dry matter was largest when 30 or 45 g L-1 of sucrose (17.5 and 16.7 mg per plant, respectively) were used. Microcuttings rooted in all sucrose concentrations tested. The highest survival percentage (100%) during ex vitro acclimatization was obtained for shoots cultured in media supplemented with 45 g L-1 of sucrose under both PFDs tested.
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phenological behaviour of Vitis rotundifolia cultivars in pinhais pr
Semina-ciencias Agrarias, 2010Co-Authors: Sergio Denega, Luiz Antonio Biasi, Flavio ZanetteAbstract:The aim of this work was to characterize the phenological cycle of nine Vitis rotundifolia cultivars during the 2004/2005 season. The cultivars were Bontiful, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke e Topsail. The experiment was performed on an orchard implanted in 1999 at the Canguiri Experimental Station of the Federal University of Parana in Pinhais-PR. The phenology of two adult plants of each cultivar was monitored. The recorded phenological stages were: 1) Dormant bud; 2) Swollen bud; 3) Wool bud; 4) Green tip; 5) Bud burst (first leaf appearance); 6) Two to three leaves unfolded; 7) Five to six leaves unfolded; 8) Fully developed inflorescence; 9) Trace bloom (flowerhoods detached); 10) Full flowering (50% of the flowerhoods fallen); 11) Fruit set; 12) Groat-sized berries; 13) Pea-sized berries; 14) 50% filled berries (beginning to touch berries); 15) Final size; 16) Color change; 17) Berries ripe for harvest; and 18) End of harvesting. A very long phenological cycle was observed when compared to species such as Vitis vinifera and Vitis labrusca . These evaluations allowed us to conclude that: a) there is no difference in the phenological cycle periods between bronze and dark skinned cultivars; b) cultivars presented desuniform wool bud to full flowering cycle, ranging from 25 days (‘Regale’) to 81 days (‘Creek’); c) the cultivar Regale presented the longest cycle (203 days) from full flowering to harvest and the cultivar Creek the shortest (136 days). The evaluated cultivars additionally presented desuniform ripening and a tendency to drop berries.
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caracteristicas fisicas e quimicas dos cachos de cultivares de Vitis rotundifolia 1 physical and chemical characteristics of grape clusters from Vitis rotundifolia cultivars
2010Co-Authors: Sergio Denega, Luiz Antonio Biasi, Flavio Zanette, Marcio Furlan Maggi, Sidnei Osmar Jadoski, Sirlei Janine BlaskeviczAbstract:The goal of this work was to evaluate physical and chemical cluster characteristics of eight Vitis rotundifolia cultivars: Topsail, Magnolia, Noble, Roanoke, Magoon, Regale, Bontiful and Dixie. The evaluated clusters were collected from a preexistent Vitis rotundifolia orchard located at the Canguiri Experimental Station of the Federal University of Parana, in Pinhais-PR. The following variables were evaluated for the 2004 and 2005 crops: total cluster mass, berry mass per cluster, rachis mass, number of berries per cluster and berry diameter. A completely random design with 50 replications was used and each cluster has been considered as a parcel. The chemical characteristics of the juice were evaluated: pH, acidity and total soluble solids. For these analyses, a completely random design with 10 replications was used with 5 clusters per plot. The cultivar Noble stood up from the rest in terms of total soluble solids content for both crops (2004 and 2005) with 12.7° and 13.7° Brix respectively. The cultivar Dixie presented the highest pH (3.04) in 2004 and the cultivar Magnolia in 2005, which present the lower acid content in both years. The cultivars Magnolia and Roanoke stood up in 2004 and 2005 respectively in total cluster mass, mass of berries and rachis mass. In terms of number of berries per cluster, the cultivars Roanoke and Magnolia presented the highest numbers in 2004 while in 2005 the highest numbers were presented by the Roanoke, Regale and Noble cultivars. In 2004, the average berry mass of the cultivars Magnolia and Topsail was superior to the others being the last cited cultivar also superior in this variable in 2005. The cultivar Noble presented the smallest diameter of berries. It was possible to conclude that Vitis rotundifolia cultivars, due to their low total soluble solids content, high acidity and low pH are not recommended for fresh consumption but present potential for juice, jam and jelly production. Furthermore, the cultivars presented small clusters with few berries, being considered inferior than clusters from other american grapevines.
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comportamento fenologico de cultivares de Vitis rotundifolia em pinhais pr 1 phenological behaviour of Vitis rotundifolia cultivars in pinhais pr
2010Co-Authors: Sergio Denega, Luiz Antonio Biasi, Flavio ZanetteAbstract:The aim of this work was to characterize the phenological cycle of nine Vitis rotundifolia cultivars during the 2004/2005 season. The cultivars were Bontiful, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke e Topsail. The experiment was performed on an orchard implanted in 1999 at the Canguiri Experimental Station of the Federal University of Parana in Pinhais-PR. The phenology of two adult plants of each cultivar was monitored. The recorded phenological stages were: 1) Dormant bud; 2) Swollen bud; 3) Wool bud; 4) Green tip; 5) Bud burst (first leaf appearance); 6) Two to three leaves unfolded; 7) Five to six leaves unfolded; 8) Fully developed inflorescence; 9) Trace bloom (flowerhoods detached); 10) Full flowering (50% of the flowerhoods fallen); 11) Fruit set; 12) Groat-sized berries; 13) Pea-sized berries; 14) 50% filled berries (beginning to touch berries); 15) Final size; 16) Color change; 17) Berries ripe for harvest; and 18) End of harvesting. A very long phenological cycle was observed when compared to species such as Vitis vinifera and Vitis labrusca. These evaluations allowed 1
Vanessa Dalla Colleta - One of the best experts on this subject based on the ideXlab platform.
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Avaliação da resistência de cultivares de Vitis rotundifolia à pérola-da-terra (Hemiptera: Margarodidae) na região sul do Brasil
Acta Scientiarum. Agronomy, 2010Co-Authors: Marcos Botton, Vanessa Dalla ColletaAbstract:Evaluation of the resistance of Vitis rotundifolia cultivars to brazilian ground pearl (Hemiptera: Margarodidae) in southern Brazil. Brazilian ground pearl Eurhizococcus brasiliensis (Hempel in Wile) (Hemiptera: Margarodidae) is one of the main grape pests in southern Brazil. The resistance of Vitis rotundifolia cultivars (Bountiful, Chief, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke, Sumith and Topsail) to Brazilian ground pearl was evaluated by comparison with 101-14 (Vitis riparia x Vitis rupestris) rootstock. The experiment was conducted in a naturally infested field, by measuring pest infestation on roots, dry weight of plants (leaves + roots) and mortality during three years. V. rotundifolia cultivars showed a reduced infestation by the pest, a higher vigor and lower mortality when compared to 101-14 rootstock. All 101-14 plants were killed by the pest after the second year in the field. The cultivars Bountiful, Chief, Magoon, Magnolia and Regale had low pest infestation, showing antixenosis or antibiosis resistance. The Dixie cultivar showed a higher pest infestation; however, this was associated with high plant vigor, suggesting the existence of tolerance. The results show that V. rotundifolia cultivars Bountiful, Chief, Magoon, Magnolia and Regale showed a low infestation by E. brasiliensis and can be alternatives for direct fruit production or pest resistance source in plant breeding programs.
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Avaliação da resistência de cultivares de Vitis rotundifolia à pérolada- terra (Hemiptera: Margarodidae) na região sul do Brasil = Evaluation of the resistance of Vitis rotundifolia cultivars to brazilian ground pearl (Hemiptera: Margarodidae) in sou
Eduem (Editora da Universidade Estadual de Maringá), 2010Co-Authors: Marcos Botton, Vanessa Dalla ColletaAbstract:A pérola-da-terra Eurhizococcus brasiliensis (Hempel in Wile) (Hemiptera: Margarodidae) é uma das principais pragas da videira na Região Sul do Brasil. Neste trabalho, foi avaliada a resistência de cultivares de Vitis rotundifolia (Bountiful, Chief, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke, Sumith e Topsail) à pérola-da-terra, comparando-as com o porta-enxerto 101-14 (Vitis riparia x Vitis rupestris). O experimento foi instalado em área naturalmente infestada pela praga, avaliando-se a resistência dos genótiposmediante a contagem do número de insetos presentes nas raízes, peso seco das plantas (parte aérea + raízes) e mortalidade após três anos. Todas as cultivares de V. rotundifolia apresentaram baixo índice de infestação pela pérola-da-terra, maior vigor e menor mortalidade quando comparadas ao porta-enxerto 101-14. Todas as plantas do portaenxerto 101-14 morreram após o segundo ano de plantio. As cultivares Bountiful, Chief, Magoon, Magnólia e Regale apresentaram reduzida infestação pela praga, o que demonstra a existência de resistência do tipo antixenose e/ou antibiose. A cultivar Dixie foi a mais infestada pela cochonilha, porém apresentou vigor elevado, indicando a existência de tolerância entre os genótipos. Os resultados demonstram que as cultivares de V. rotundifolia Bountiful, Chief, Magoon, Magnólia e Regale apresentam reduzida infestação por E.brasiliensis e podem ser empregadas como produtoras e/ou fontes de resistência à praga em programas de melhoramento.Brazilian ground pearl Eurhizococcus brasiliensis (Hempel in Wile) (Hemiptera: Margarodidae) is one of the main grape pests in southern Brazil. The resistance of Vitis rotundifolia cultivars (Bountiful, Chief, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke, Sumith and Topsail) to Brazilian ground pearl was evaluated by comparison with 101-14 (Vitis riparia x Vitis rupestris) rootstock. The experiment was conducted in a naturally infested field, by measuring pest infestation on roots, dry weight of plants (leaves + roots) and mortality during three years. V. rotundifolia cultivars showed a reduced infestation by the pest, a higher vigor and lower mortalitywhen compared to 101-14 rootstock. All 101-14 plants were killed by the pest after the second year in the field. The cultivars Bountiful, Chief, Magoon, Magnolia and Regale had low pest infestation, showing antixenosis or antibiosis resistance. The Dixie cultivar showed a higher pest infestation; however, this was associated with high plantvigor, suggesting the existence of tolerance. The results show that V. rotundifolia cultivars Bountiful, Chief, Magoon, Magnolia and Regale showed a low infestation by E. brasiliensis and can be alternatives for direct fruit production or pest resistance sourcein plant breeding programs
