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| Tomazetti,Tiago Camponogara; Rossarolla,Márcia Denise; Zeist,André Ricardo; Giacobbo,Clevison Luiz; Welter,Leocir José; Alberto,Cleber Maus. |
| Resumo: O objetivo deste trabalho foi avaliar a exigência térmica, obtida por diferentes métodos de cálculo, para caracterizar a fenologia das videiras (Vitis vinifera) 'Cabernet Sauvignon', 'Tannat', 'Ruby Cabernet' e 'Merlot', cultivadas na Fronteira Oeste do Rio Grande do Sul. O desenvolvimento fenológico foi acompanhado durante cinco safras - 2005/2006 a 2009/2010. As temperaturas mínimas e máximas do ar foram coletadas diariamente e foram testados oito métodos de soma térmica: M1.1, M1.2 e M1.3, que utilizaram somente a temperatura base inferior (10°C); M2.1 e M2.2, que consideraram também a temperatura ótima de desenvolvimento de 25°C; e M3.1, M3.2 e M3.3 que, além das anteriores, utilizaram 35°C como temperatura base superior do desenvolvimento.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis vinífera; Desenvolvimento vegetal; Graus-dia; Soma térmica; Temperatura; Viticultura.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015001101033 |
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| Saifert,Luciano; Sánchez-Mora,Fernando David; Assumpção,Wilson Taybar; Zanghelini,Jean Alberto; Giacometti,Renan; Novak,Eduardo Irineu; Vesco,Lírio Luiz Dal; Nodari,Rubens Onofre; Eibach,Rudolf; Welter,Leocir José. |
| Abstract: The objective of this work was to use a marker-assisted selection for pyramiding the resistance loci Rpv1 and Rpv3.1 in grapevine (Vitis vinifera), and to evaluate their conferred resistance against Brazilian downy mildew (Plasmopara viticola) isolates. A progeny of 23 plants, segregating for the two resistance loci, was obtained by the cross between the Gf 2000-305-122 and Gf.Ga-52-42 genotypes. The progeny was genotyped with four microsatellite markers and phenotyped for resistance to P. viticola using a bioassay with leaf discs. Six plants containing the Rpv1 and Rpv3.1 pyramided loci were identified by the molecular analysis. Plants harboring the Rpv1 + Rpv3.1, Rpv3.1, and Rpv1 loci showed 12.8, 30.0, and 33.1 sporangiophores per leaf disc,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plasmopara viticola; Vitis vinifera; Enological quality; Genetic resistance to disease; Grapevine breeding; Quantitative trait loci. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000500602 |
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| Zeist,André Ricardo; Tomazetti,Tiago Camponogara; Rossarolla,Márcia Denise; Alberto,Cleber Maus; Giacobbo,Clevison Luiz; Welter,Leocir José. |
| Abstract: The objective of this work was to estimate the plastochron index of the 'Cabernet Sauvignon' and 'Chardonnay' grapevine varieties in Fronteira Oeste, in the state of Rio Grande do Sul, Brazil. The experiment was conducted in 2010, in a completely randomized design, using 'Cabernet Sauvignon' and 'Chardonnay' grapevines grown in the municipalities of Itaqui, São Borja, and Maçambará, which were referred to as sites 1, 2, and 3, respectively. Phenological monitoring of the varieties was done from the beginning of sprouting until the pruning of canes (green trimming). The daily thermal sum (dTS, oC day) was calculated using the cardinal temperatures for node appearance in grapevines (10, 25, and 35ºC), whereas the accumulated thermal sum (aTS, oC... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis vinifera; Degree-days; Plant development; Temperature; Thermal sum; Viticulture.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000400244 |
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| Bandeira,Cirineu Tolfo; Fortes,Sabrina Kitina Giordano; Toebe,Marcos; Saifert,Luciano; Giacobbo,Clevison Luiz; Welter,Leocir José. |
| ABSTRACT: The aim of this research was to determine the sample size needed to estimate the average of wild passion fruit ( Passiflora caerulea ) traits. It was collected randomly, 133, 99 and 133 fruit of wild passion fruit in 30, 21 and 29 plants, located respectively, in the cities of São Borja, Itaqui and Uruguaiana, on the west border of Rio Grande do Sul, Brazil, totaling 365 fruits harvested in 80 plants. In each fruit were measured ten traits: width, length, fruit, skin, and pulp weight, pulp yield, luminosity and tone of skin and pulp. Then, central tendency, dispersion and distribution measures were calculated and the normality of the data checked. After, it was determined the sample size needed to estimate the average for each character, assuming... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Wild passion fruit; Experimental precision; Experimental planning. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001729 |
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| Santos,Karine Louise dos; Welter,Leocir José; Dantas,Adriana Cibele de Mesquita; Guerra,Miguel Pedro; Ducroquet,Jean Pierre Henri Joseph; Nodari,Rubens Onofre. |
| The pineapple guava (Acca sellowiana), known in portuguese as the goiabeira-serrana or "Feijoa", is a native fruit tree from southern Brazil and northern Uruguay that has commercial potential due to the quality and unique flavor of its fruits. Knowledge of genetic variability is an important tool in various steps of a breeding program, which can be facilitated by the use of molecular markers. The conservation of repeated sequences among related species permits the transferability of microsatellite markers from Eucalyptus spp. to A. sellowiana for testing. We used primers developed for Eucalyptus to characterize A. sellowiana accessions. Out of 404 primers tested, 180 amplified visible products and 38 were polymorphic. A total of 48 alleles were detected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feijoa sellowiana; Genetic diversity; Goiabeira-serrana; Pineapple-guava; Transferability. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000100014 |
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