Data/hora: 02/06/2024 04:31:19

Provedor de dados: | 63
País: | Brazil
Título: | Technological properties of latex and natural rubber of Hevea brasiliensis clones
Autores: | Moreno,Rogério Manoel Biagi; Ferreira,Mariselma; Gonçalves,Paulo de Souza; Mattoso,Luiz Henrique Capparelli.
Data: | 2005-04-01
Ano: | 2005
Palavras-chave: | Rubber tree; Standard methods; Productivity; Environmental conditions.
Resumo: | Rubber industry has increased the requirements for quality and uniformity of natural rubber produced in Brazil. Technological properties of latex and natural rubber of clones GT 1, PB 235, IAN 873 and RRIM 600 [Hevea brasiliensis (Willd. Former Adr. de Juss.) Muell.- Arg] were evaluated by standard methods of the dry rubber content (DRC%), percentage of nitrogen (N%) and percentage of ashes (ASH%) in two consecutive years; data were correlated with temperature and precipitation. Properties of latex and natural rubber varied (P &lt; 0.01) as a function of clone type and among tappings. DRC decreased in the beginning of the dry season (May to June) and N% and ASH% increased in the same period. April to June was a critical period, when N% was above 0.60%, out of standards established by the technical standard ABNT/NBR in Brazil. Clone RRIM 600 was less susceptible to climatic variations.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000200005
Editor: | São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação: | 10.1590/S0103-90162005000200005
Formato: | text/html
Fonte: | Scientia Agricola  v.62 n.2 2005
Fonte: | info:eu-repo/semantics/openAccess