Consulta: subjectFacets:"Bark thickness"
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Data/hora: 11/06/2024 02:08:15

Assessment of growth and yield performance of rubber tree clones of the IAC 500 series
Provedor de dados: Pesquisa Agropecuária Brasileira
Autores: Gonçalves,Paulo de Souza; Scaloppi Júnior,Erivaldo José; Martins,Maria Alice; Moreno,Rogério Manoel Biagi; Branco,Roberto Botelho Ferraz; Gonçalves,Elaine Cristine Piffer.
The objective of this work was to evaluate the performance of 15 clones of the IAC 500 series of Hevea brasiliensis, developed at Instituto Agronômico (IAC), over a 12-year period, in the northwest region of São Paulo State, Brazil. The 15 new clones evaluated are primary clones obtained from selected ortets within half-sib progenies. The clone RRIM 600, of Malaysian origin, was used as the control. Dry rubber yield performance over a four-year period, mean girth at the tenth year, girth increment before and during tapping, thermal properties of the natural rubber produced and other characters of the laticiferous system were evaluated. Forty percent of the clones were superior in comparison to the control for yield. Clone IAC 500 recorded the highest yield...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hevea brasiliensis; Bark thickness; Brown bast; Vigor; Yield.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011001200009

Performance of new Hevea clones from IAC 400 series
Provedor de dados: Scientia Agricola
Autores: Gonçalves,Paulo de Souza; Silva,Marcelo de Almeida; Aguiar,Adriano Tosoni da Eira; Martins,Maria Alice; Scaloppi Junior,Erivaldo José; Gouvêa,Lígia Regina Lima.
The Hevea breeding program of Instituto Agronômico de Campinas (IAC) has completed clonal evaluation on the following series: IAC 100, IAC 200 and IAC 300. The performance of 22 clones of Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell.-Arg., evolved at IAC, over a period of eleven years was evaluated in the Western Central part of the São Paulo State, Brazil. Among these 22 new clones, six were intraspecific hybrid clones (IAC 400, IAC 404, IAC 405, IAC 406, IAC 410, IAC 412) and the remaining are primary those resulted from selected ortets within half-sib progenies. An old popular clone RRIM 600, of Malaysian origin, was used as the control. The trial was laid out in a randomized block design with three replications. Yield performance over a period of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hevea brasiliensis; Yield; Vigour; Brown bast; Bark thickness.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000300005

Post-fire resprouting strategies of woody vegetation in the Brazilian savanna
Provedor de dados: Acta Botanica Brasilica
Autores: Souchie,Fabiane Furlaneto; Pinto,Jose Roberto Rodrigues; Lenza,Eddie; Gomes,Letícia; Maracahipes-Santos,Leonardo; Silvério,Divino Vicente.
ABSTRACT Post-fire response by vegetation may reflect the severity of the damage suffered, but we still know little about the species-specific nature of responses to fire or their predictors. Here, we evaluated 26 woody species before and after a fire event in an Cerrado sensu stricto area (typical Brazilian savanna-type) in order to evaluate mortality rates and the type of resprouting (epigeal, hypogeal or epigeal + hypogeal). We evaluated the relative importance of stem diameter, height, and bark thickness as predictors of the type of post-fire resprouting, using a sequential logistic regression model (SLRM). Mortality was 4 %, while epigeal resprouting was recorded in 57 % of the individuals, hypogeal resprouting was recorded in 24 %, and epigeal +...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bark thickness; Cerrado sensu stricto; Disturbance; Fire; Resilience.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000200260