| Full text | |
| Author(s): |
Miranda, Aline Cristina
[1, 2]
;
Teixeira de Moraes, Mario Luiz
[1, 3]
;
Tambarussi, Evandro Vagner
[4]
;
Furtado, Edson Luis
[2]
;
Mori, Edson Seizo
[1, 2]
;
Muller da Silva, Paulo Henrique
[1, 4]
;
Sebbenn, Alexandre Magno
[5, 3]
Total Authors: 7
|
| Affiliation: | [1] IPEF, BR-13400970 Piracicaba, SP - Brazil
[2] UNESP Botucatu, Fac Ciencias Agron Botucatu, BR-18603970 Botucatu, SP - Brazil
[3] UNESP Ilha Solteira, Fac Engn Ilha Solteira, BR-15385000 Ilha Solteira, SP - Brazil
[4] Univ Sao Paulo, Escola Super Agr Luiz de Queiroz ESALQ, BR-13400970 Piracicaba, SP - Brazil
[5] Inst Florestal Sao Paulo, BR-01059970 Sao Paulo - Brazil
Total Affiliations: 5
|
| Document type: | Review article |
| Source: | Tree Genetics & Genomes; v. 9, n. 2, p. 321-329, APR 2013. |
| Web of Science Citations: | 14 |
| Abstract | |
The climates of the central and southern regions of So Paulo state in Brazil favor pathogens such as Puccinia psidii Winter, which causes a common and severe disease in Eucalyptus plantations under 2 years old. We studied genetic parameters including genotype by environment interaction (G x E) of resistance to P. psidii rust in Eucalyptus grandis at nine sites in So Paulo State. Open-pollinated progeny from ten `provenances' were established in a randomized complete block design; at individual sites there were from 134 to 160 progenies, from four to eight blocks, and five to six trees per plot. Significant provenance and progeny(provenance) differences were detected, as was G x E involving progeny(provenance). However, the G x E involved little if any rank changes, indicating that selection can be done efficiently at a single site, if the disease level is sufficient. The estimated coefficient of genetic variation among the progeny within provenances was high and variable among the sites (ranging from 11 % to 36.7 %), demonstrating different expression of genetic variability among the sites. The estimated heritability at the individual-tree level and within a plot ranged from low to intermediate (ranging from 0.04 to 0.46) and was high at the progeny-mean level (ranging from 0.30 to 0.86). Our study shows good prospects of controlling this disease by selection among and within progenies in a single site. (AU) | |
| FAPESP's process: | 10/04337-1 - Productivity, stability and adaptability in progenies of Eucalyptus grandis |
| Grantee: | Aline Cristina Miranda |
| Support Opportunities: | Scholarships in Brazil - Master |