Estimation of genetic parameters and selection of Brachiaria humidicola progenies using a selection index

被引：39

作者：

de Figueiredo, Ulisses Jose ^{[1
]}

Rodrigues Nunes, Jose Airton ^{[1
]}

do Valle, Cacilda Borges ^{[2
]}

机构：

[1] Univ Fed Lavras UFLA, BR-37200000 Lavras, MG, Brazil

[2] Embrapa Gado Corte, BR-79002970 Campo Grande, MS, Brazil

来源：

CROP BREEDING AND APPLIED BIOTECHNOLOGY | 2012年 / 12卷 / 04期

关键词：

Correlation; heritability; repeatability; genetic value; nutritive value; REPEATABILITY; CHARACTERS; PASTURE;

D O I：

10.1590/S1984-70332012000400002

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The objectives of this study were to estimate genetic parameters for agronomic and nutritive value traits for leaves and stems of Brachiaria humidicola progenies and to compare the selection using an additive index considering the agronomic traits alone or combined with the main nutritive value traits. Fifty progenies of the cross cv. BRS Tupi x H31 were evaluated. The experiment was arranged in a randomized block design with eight replications. The forage was cut seven times, at intervals of 30 - 35 days in the rainy season and two intervals of 60 days in the dry season. Trait variability among the progenies was confirmed. The mean progeny heritability ranged from 49.14% to 75.56% for the agronomic and from 19.59% to 71.11% for nutritive value traits. Nine of the ten best lines coincided in the selection for agronomic traits alone and in the selection including the main traits of nutritive value.

引用

页码：237 / 244

页数：8

共 50 条

[1] Meiotic behavior as a selection tool in the breeding of Brachiaria humidicola (Poaceae)
Boldrini, Kellen Regina
Adamowski, Eleniza de Victor
Message, Hugo
Calisto, Vergilio
Pagliarini, Maria Suely
do Valle, Cacilda Borges
EUPHYTICA, 2011, 182 (03) : 317 - 324
[2] Effects of season and year of evaluation in the selection of Brachiaria humidicola hybrids
De Figueiredo, Ulisses J.
Nunes, Jose A. R.
Do Valle, Cacilda B.
Barrios, Sanzio C. L.
Alves, Geovani F.
TROPICAL GRASSLANDS-FORRAJES TROPICALES, 2013, 1 (01): : 76 - 77
[3] Genetic evaluation and selection index in tetraploid Brachiaria ruziziensis
Simeao, Rosangela
Silva, Adriane
Valle, Cacilda
Resende, Marcos Deon
Medeiros, Sergio
PLANT BREEDING, 2016, 135 (02) : 246 - 253
[4] Meiotic behavior as a selection tool in the breeding of Brachiaria humidicola (Poaceae)
Kellen Regina Boldrini
Eleniza de Victor Adamowski
Hugo Message
Vergílio Calisto
Maria Suely Pagliarini
Cacilda Borges do Valle
Euphytica, 2011, 182 : 317 - 324
[5] Selection and genetic parameters of coriander progenies with heat tolerance
Oliveira, Natalia S.
Carvalho Filho, Jose L. S.
Silva, Drielle O.
Pastoriza, Rhuan J. G.
Melo, Roberto A.
Silva, Jose W.
Menezes, Dimas
HORTICULTURA BRASILEIRA, 2015, 33 (03) : 319 - 323
[6] ESTIMATION OF PARAMETERS FOR SELECTION INDEX EVALUATION
ANDERSEN, S
BIOMETRICS, 1984, 40 (01) : 274 - 274
[7] EFFECT OF SELECTION ON ESTIMATION OF GENETIC PARAMETERS
ROBERTSON, A
ZEITSCHRIFT FUR TIERZUCHTUNG UND ZUCHTUNGSBIOLOGIE-JOURNAL OF ANIMAL BREEDING AND GENETICS, 1977, 94 (02): : 131 - 135
[8] Genetic and phenotypic parameters associated with soybean progenies in a recurrent selection program
Soares, Igor Oliveri
Bianchi, Mariane Cristina
Bruzi, Adriano Teodoro
Gesteira, Gabriel de Siqueira
Silva, Karina Barroso
Guilherme, Scheila Roberta
Cianzio, Silvia R.
CROP BREEDING AND APPLIED BIOTECHNOLOGY, 2020, 20 (04): : 1 - 8
[9] Genetic parameters and initial selection of Tachigali vulgaris provenances and progenies in Roraima
Cruz, Sandra Lima
Pedrozo, Cassia Angela
Aragao Oliveira, Vanubia Ximendes
da Silva, Andressa Maria
Vilela de Resende, Marcos Deon
Goncalves, Delman de Almeida
CIENCIA FLORESTAL, 2020, 30 (01): : 258 - 269
[10] ESTIMATION OF GENETIC PARAMETERS AND SELECTION OF PROVENANCES AND PROGENIES OF Dipteryx alata VOGEL (BARU) USING (REML/BLUP) AND E(QM) METHODOLOGIES
Rocha, Rodrigo Barros
Barros Rocha, Maria das Gracas
Santana, Reynaldo Campos
Vieira, Abadio Hermes
CERNE, 2009, 15 (03) : 331 - 338

← 1 2 3 4 5 →