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Data/hora: 09/06/2024 11:54:11

Visual selection of Urochloa ruziziensis genotypes for green biomass yield
Provedor de dados: 1
Autores: Teixeira, Davi Henrique Lima; Gonçalves, Flávia Maria Avelar; Nunes, José Airton Rodrigues; Souza Sobrinho, Fausto; Benites, Flávio Rodrigo Gandolfi; Dias, Kaio Olímpio das Graças.
The breeding program of Urochloa ruziziensis evaluates many genotypes in initial phases. Evaluations through grades might make the selection less costly. The aim of this study was to verify the efficiency of visual selection for green biomass yield in relation to different selection strategies, such as mass selection by phenotypic mean, BLUP (Best Linear Unbiased Prediction) and at random. For this purpose, 2,309 regular genotypes were evaluated in an augmented block design in two cuts. The evaluators gave grades for plant vigor, and later, the plots were measured for green biomass yield. The coincidences of the selected genotypes were estimated by different selection strategies. Then, 254 clones of the genotypes selected in different strategies were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mass selection; Realized heritability; BLUP; Brachiaria.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42444

Regrowth age modifies the leaf anatomy of Brachiaria genotypes
Provedor de dados: 3
Autores: Mauri, Janaína; Silva, Gabrielle Avelar; Pereira, Daniele Laís; Techio, Vânia Helena; Davide, Lisete Chamma; Souza Sobrinho, Fausto; Pereira, Fabrício José.
 Changes in leaf anatomy were evaluated in genotypes of Brachiaria brizantha, Brachiaria decumbens, Brachiaria ruziziensis and three Brachiaria ruziziensis clones through tissue proportion in internerval and midrib regions at three regrowth ages. Plants were grown and cutting was performed after 60 days. Further, leaves were sampled at 8, 15 and 29 regrowth days and processed with usual plant microtechnique. The internerval region showed higher parenchyma percentage at 15 days for Clone 95 and similar values at 15 and 29 days for Clone 1. The proportion of vascular bundles was lower after 15 days in Clones 1 and 95 and 29 days in B. brizantha. In the midrib, the parenchyma proportion was higher at 29 days in B. brizantha and lower at 15 days in B....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestibility; Lignina; Urochloa; Brachiaria brizantha; Brachiaria decumbens; Brachiaria ruziziensis. Anatomia Vegetal.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/39369