Age-age correlation for early selection of rubber tree genotypes in São Paulo State, Brazil

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorde Souza Gonçalves, Paulo
dc.creatorBortoletto, Nelson
dc.creatorCardinal, Átila Bento Beleti
dc.creatorGouvêa, Lígia Regina Lima
dc.creatorda Costa, Reginaldo Brito
dc.creatorde Moraes, Mário Luiz Teixeira
dc.date2014-05-27T11:21:38Z
dc.date2016-10-25T18:21:10Z
dc.date2014-05-27T11:21:38Z
dc.date2016-10-25T18:21:10Z
dc.date2005-10-01
dc.date.accessioned2017-04-06T01:14:49Z
dc.date.available2017-04-06T01:14:49Z
dc.identifierGenetics and Molecular Biology, v. 28, n. 4, p. 758-764, 2005.
dc.identifier1415-4757
dc.identifier1678-4685
dc.identifierhttp://hdl.handle.net/11449/68429
dc.identifierhttp://acervodigital.unesp.br/handle/11449/68429
dc.identifier10.1590/S1415-47572005000500018
dc.identifierS1415-47572005000500018
dc.identifierWOS:000246081500018
dc.identifier2-s2.0-31444443064.pdf
dc.identifier2-s2.0-31444443064
dc.identifierhttp://dx.doi.org/10.1590/S1415-47572005000500018
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/889767
dc.descriptionIn a field trial involving 68 rubber tree (Hevea spp.) clones calculation of genotypic correlation coefficients revealed significant age-age correlation from age 1 to 6 (immature period) for girth A and for age 7 to 12 (mature period) for girth B and for age 7 to 12 (production of latex) for yield. Rank correlation coefficients between all immature ages of girth (girth A), all ages of mature girth (girth B) and all annual rubber production (yield) were significant for the three traits, with the coefficients decreasing with increasing age. Selection of the sets of best 30, 15, 10 and 5 clones from the available 68 clones at a given age was generally accompanied by a descending order of percentage success. It was suggested: (a) to have the best 30 clones of age 6, select the set of best 36 clones at age 2, (b) to have the best 15 clones of age 6, select the set of best 20 clones at age 3, (c) to have the best 5 clones of age 6, select the set of best 8 clones at age 4, and (d) to have the best 3 clones of age 6, select the set of best 3 clones at age 5. More than 80% of the targeted clones on girth A or girth B basis and more than 76.7% clones on yield basis were found to get selected at steps (a) through (d). For achieving early multiplication of the most productive clone for deployment, multiplication should be started with the best 36 (i.e. 60%) clones selected at age 2. Copyright by the Brazilian Society of Genetics.
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageeng
dc.relationGenetics and Molecular Biology
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectEarly clonal multiplication
dc.subjectEvaluation of clones
dc.subjectGenetic correlation
dc.subjectHevea brasiliensis
dc.subjectRank correlation
dc.subjectlatex
dc.subjectrubber
dc.subjectBrazil
dc.subjectclone
dc.subjectcontrolled study
dc.subjectgenetic correlation
dc.subjectgenetic selection
dc.subjectgenotype
dc.subjectnonhuman
dc.subjectplant age
dc.subjectplant genetics
dc.subjectplant yield
dc.subjectHevea
dc.titleAge-age correlation for early selection of rubber tree genotypes in São Paulo State, Brazil
dc.typeOtro


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