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Genetic divergence on castor bean using the ward-mlm strategy Rev. Ciênc. Agron.
Oliveira,Ronaldo Simão de; Silva,Simone Alves; Brasileiro,Bruno Portela; Medeiros,Everaldo Paulo; Anjos,Edijane Valéria Araújo dos.
The objective of this work was to evaluate the genetic diversity in a segregating population F3 of castor bean in the Recôncavo Baiano using the Ward-MLM multivariate technique. The experiment was conducted at the Universidade Federal do Recôncavo da Bahia between April 2009 and March 2010. The 259 genotypes used were derived from crosses between the BRS 149 Nordestina, BRS 188 Paraguaçu, EBDA MPA-17, Sipeal 28 and Mirante 10 varieties. The design was in randomized complete blocks with four replicates in spacing of 3x1 m. The number of days to the appearance of the first female flower, plant height (cm), number of racemes emitted per plant, total length of the raceme (cm), raceme weight (g), fruit weight per plant (g), number of seeds per raceme, number of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Castor beans; Plants-genetic improvement; Modified location model.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000300019
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Genetic diversity and coefficient of kinship among potential genitors for obtaining cultivars of energy cane1 Rev. Ciênc. Agron.
Silveira,Luís Cláudio Inácio da; Brasileiro,Bruno Portela; Kist,Volmir; Daros,Edelclaiton; Peternelli,Luiz Alexandre.
The aim of this study was to evaluate the genetic diversity and coefficient of kinship in 50 sugarcane genotypes, in addition to identifying potential parents for obtaining cultivars of energy cane. Diversity analysis was carried out based on the evaluation of morphological and agronomical characteristics. The coefficient of kinship was obtained from information on pedigree. According to analyses carried out, genotypes were separated into two groups. Group G1 consisted of 13 genotypes from the species Saccharum spontaneum and Saccharum robustum. The other 37 genotypes were from back-crosses with Saccharum officinarum, and were allocated to group G2. The genotypes displayed low values for genetic similarity and coefficient of kinship, indicating broad...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum spp; Germplasm; Biomass; Breeding.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000200358
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Indexes in the comparison of pre-commercial genotypes of common bean Ciência Rural
Marinho,Caillet Dornelles; Gravina,Geraldo de Amaral; Sebastião,Lanusse Cordeiro de Araújo; Almeida,Ney Costa de; Daher,Rogério Figueiredo; Brasileiro,Bruno Portela; Paula,Thiago Otávio Mendes de; Amaral Júnior,Antônio Teixeira do.
The objective of this research was to analyze the use of cultivar index selection (GARCIA, 1998) in the indication of superior genotypes of common bean for the northwest region of the state of Rio de Janeiro, in comparison to the other nonparametric indices used in plant breeding. The indexes of ELSTON (1963), MULAMBA & MOCK (1978), SCHWARZBACH (1972) and GARCIA (1998) were employed in the evaluation of 14 strains (F9 e F10) of common bean of indeterminate growth habit. The experiments were conducted in the municipalities of Bom Jesus do Itabapoana (2010 and 2011) and Cambuci (2011). The design employed was of randomized blocks with four repetitions. The traits pod yield (PRODV), grain yield (PRODG), average number of pods per plant (NMVP), average...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cultivar selection; Recommendation; Phaseolus vulgaris.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000701159
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Oviposition preference and larval performance of sugarcane borer in eight sugarcane genotypes Ciência e Agrotecnologia
Pimentel,Guilherme Vieira; Tomaz,Adriano Cirino; Brasileiro,Bruno Portela; Peternelli,Luiz Alexandre; Barbosa,Márcio Henrique Pereira.
ABSTRACT The sugarcane borer Diatraea saccharalis Fabr. (Lepidoptera: Crambidae) is one of the most important pests of sugarcane in the Americas. The purpose of this study was to assess multiple resistance traits in eight sugarcane genotypes against D. saccharalis, including five commercial cultivars and three exotic germplasm with potential to serve as resistance sources against this pest. The oviposition preference was assessed by using both free-choice and non-choice tests. The performance of both early stage larvae feeding on the leaves and late stages larvae feeding within the stalks were also assessed. There were differences among genotypes for number of both eggs and egg cluster in the free-choice test while no differences in non-choice test were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum spp.; Diatraea saccharalis; Host-plant resistance..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000400439
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Selection of sugarcane families and clones under cold stress Ciência Rural
Verissimo,Mario Alvaro Aloisio; Azeredo,Amaro Afonso Campos de; Silva,Sergio Delmar dos Anjos e; Brasileiro,Bruno Portela; Bespalhok Filho,João Carlos; Daros,Edelclaiton; Oliveira,Ricardo Augusto de.
ABSTRACT: The purpose of this study was to select cold-tolerant sugarcane families and clones. Evaluations were carried out during three selection phases in the municipality of Pelotas, state of Rio Grande do Sul, Brazil. The experiments were arranged in an incomplete block design, with initially 4,452 seedlings of 53 full-sib families. Aside from the traits soluble solids content (BRX), tons of stalks per hectare (TSH) and tons of brixper hectare (TBH), the survival of the apical bud (ABS) was evaluated in the first selection stage (T1) of the breeding program. At the end of three selection phases, 15 clones of 14 of the 53 families evaluated in the first phase (T1) were selected for the experimental phase. Of these, the clones RS/PR126066, RS/PR126044,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum spp.; Abiotic stress; Plant breeding; Frost..
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100152
Registros recuperados: 5
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