Genetic evaluation and selection in Jatropha curcas L.

被引：3

作者：

Ribeiro Cardoso, Poliane Marcele ^{[1
]}

dos Santos Dias, Luiz Antonio ^{[1
]}

Vilela de Resende, Marcos Deon ^{[2
,3
]}

de Freitas, Ricardo Galvao ^{[4
]}

Correa, Thais Roseli ^{[1
]}

Muniz, Dandara Rego ^{[1
]}

Zaidan, Iasmine Ramos ^{[1
]}

机构：

[1] Univ Fed Vicosa, Dept Fitotecnia, BR-36560900 Vicosa, MG, Brazil

[2] Embrapa Florestas, Colombo, PR, Brazil

[3] Univ Fed Vicosa, Dept Engn Florestal, Vicosa, MG, Brazil

[4] Monsanto Co, BR-76650000 Morrinhos, Go, Brazil

来源：

CROP BREEDING AND APPLIED BIOTECHNOLOGY | 2018年 / 18卷 / 02期

关键词：

Physic nut; biodiesel; biokerosene; genetic parameters; grain yield and components; variability; HALF-SIB FAMILIES; PHYSIC NUT; BIODIESEL PRODUCTION; YIELD; DOMESTICATION; IMPROVEMENT; PARAMETERS; TRAITS; OIL;

D O I：

10.1590/1984-70332018v18n2a27

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

J. curcas (physic nut) is one of the most promising oilseeds for biofuel production and the knowledge about genetic parameter estimates is important for its breeding. Here, we evaluated 121 families, from 48 to 60 months of age, aiming genetic evaluation and selection. The trial was set up in an 11 x 11 lattice design, with three replications and 4-plant plot. The traits evaluated were fruit yield (FY), grain (GY) and oil yield (OY), fruit husk percentage (FH) and seed oil content (OC). Individual heritabilities were low (0.19 to 0.23), requiring accurate selection and improvement methods. Moderate repeatabilities were observed for FY (0.54), GY (0.52), OC (0.30) and OY (0.51), indicating that the families evaluated maintained relative superiority over the years. With selection of the 20 best individuals, the predicted genotypic gains (66%) were greater than the additive gains (56%), indicating greater possibilities of success from cultivation of clones.

引用

页码：192 / 199

页数：8

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