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Genetic parameters of resistance to Meloidogyne incognita in melon Ciência Rural
Candido,Willame dos Santos; Castoldi,Renata; Santos,Lucas da Silva; Tobar-Tosse,Dora Enith; Soares,Pedro Luiz Martins; Braz,Leila Trevisan.
ABSTRACT: In order to assess the genetic control of resistance in the melon ‘Gaúcho Redondo’ to the root-knot nematode Meloidogyne incognita, an experiment was conducted in a randomized complete block design with three blocks and six treatments using the parental lines ‘Gaúcho Redondo’ (P1 resistant) and JAB 20 (P2 susceptible), as well as F1, F2, and backcross generations (RC1P1 and RC1P2). Seventy days after inoculation, individual plants were evaluated for resistance using the nematode reproduction factor (RF). The hypothesis of monogenic inheritance was rejected by the chi-square test (χ2), and results indicated that resistance is controlled by more than one gene locus, as confirmed by the quantitative analysis that revealed the presence of six genes.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cucumis melo; Genetic inheritance; Plant breeding; Reproduction factor.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500201
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Caracterização de genótipos de soja-hortaliça por análise de componentes principais Ciência Rural
Tobar-Tosse,Dora Enith; Castoldi,Renata; Candido,Willame dos Santos; Ferraudo,Antonio Sergio; Charlo,Hamilton Cesar de Oliveira; Braz,Leila Trevisan.
O presente estudo teve como objetivo caracterizar genótipos de soja-hortaliça, por meio de características agronômicas, nutricionais e antinutricionais, utilizando-se a Análise de Componentes Principais. O experimento foi conduzido em condições de campo no Setor de Olericultura e Plantas Aromático-Medicinais na UNESP-FCAV. O delineamento experimental foi em blocos casualizados com cinco genótipos e quatro repetições. Avaliaram-se as variáveis: número de vagens por planta, número de sementes por vagem, massa fresca das vagens por planta (g), massa fresca de 100 sementes (g), produtividade total estimada de grãos imaturos (kg ha-1), teor de umidade, proteínas, lipídeos, cinzas, carboidratos, isoflavonas e inibidores de tripsina Kunitz. As variáveis que...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Discriminação multivariada; Edamame; Caracteres agronômicos; Características nutricionais; Características antinutricionais..
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701214
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Stability and adaptability of curled green-leaf lettuce lines using the REML/Blup mixed model PAB
Candido,Willame dos Santos; Soares,Renato Silva; Franco,Carolina Andrade; Diniz,Guilherme Matos Martins; Silva,Edgard Henrique Costa; Marin,Marcus Vinicius; Braz,Leila Trevisan.
Abstract: The objective of this work was to estimate the stability and genotypic adaptability of advanced lines and cultivars of curled green-leaf lettuce (Lactuca sativa), in different growing environments and seasons, using the REML/Blup mixed model. Ten genotypes, seven cropping environments, and two growing seasons were studied in 2015. Plant yield traits were evaluated, and data were subjected to the Selegen-REML/Blup software. Genotype stability and adaptability were analyzed using the harmonic mean of genotypic values (HMGV) and the relative performance of genotypic values (RPGV), respectively. The harmonic mean of RPGV (HMRPGV) was used to simultaneously estimate the stability, adaptability, and yield of breeding lines or cultivars. Considering the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lactuca sativa; Cropping systems; HMRPGV; Mixed models.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000300298
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Selection indexes in the simultaneous increment of yield components in topcross hybrids of green maize PAB
Candido,Willame dos Santos; Silva,Caique Machado e; Costa,Maraiza Lima; Silva,Bruna Elaine de Almeida; Miranda,Beatriz Lima de; Pinto,Jefferson Fernando Naves; Reis,Edésio Fialho dos.
Abstract: The objective of this work was to define the most suitable selective strategy for the simultaneous increment of yield components of green maize, by comparing three selection indexes weighted by economic weights and by the REML/BLUP method, in the assessment of predicted genetic gains for traits of interest. An experiment with 75 topcross hybrids from partially inbred S1 lines of green maize was carried out in Jataí, in the state of Goiás, Brazil, using a randomized complete block design, with four replicates. The following yield traits were evaluated: straw ears and commercial ears, grain mass, ear length, ear diameter, and number of ear rows. The selection indexes of Smith and Hazel, Williams, and Mulamba & Mock were applied and weighted for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays; Economic weights; Mixed models; REML/BLUP.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2020000102900
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