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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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| 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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