Genetic variability of forage traits in Paspalum

被引：21

作者：

Pereira, Emerson Andre ^{[1
]}

Barros, Thiago ^{[1
]}

Volkmann, Gabriela Kessler ^{[1
]}

Battisti, Gabriel Koltermann ^{[2
]}

Gonzalez da Silva, Jose Antonio ^{[2
]}

Simioni, Carine ^{[1
]}

Dall'Agnol, Miguel ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Fac Agron, Dept Plantas Forrageiras & Agrometeorol, BR-91501970 Porto Alegre, RS, Brazil

[2] Univ Reg Noroeste Estado Rio Grande do Sul, BR-98700000 Ijui, RS, Brazil

来源：

PESQUISA AGROPECUARIA BRASILEIRA | 2012年 / 47卷 / 10期

关键词：

apomixis; native species; genotype x environment interaction; selection; SELECTION; IDENTIFICATION; PLICATULUM; BEHAVIOR; HYBRIDS;

D O I：

10.1590/S0100-204X2012001000017

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The objective of this work was to determine the genetic variability and the expression of traits of interest for forage production in species of Paspalum. The experiments were carried out in different locations and crop years in randomized block design with three replicates. Five accessions of P. nicorae and two of P. guenoarum were evaluated, besides the cultivar Pensacola (P. notatum), used as a control. The following traits were determined: leaf/stalk ratio; harvest index; and total, leaf, and stalk dray matter. Both main effects (genotype, years, and locations) and the interactions among factors had significant influence on the evaluated traits. The evaluated accessions showed genetic variability in traits of interest for forage production, and their performance varied according to the location and year of cultivation. Total and leaf dry matter production are the traits that most contribute to the detection of the observed genetic variability, regardless of the year of evaluation.

引用

页码：1533 / 1540

页数：8

共 21 条

[1] Bahiagrass Tetraploid Germplasm: Reproductive and Agronomic Characterization of Segregating Progeny [J].