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| Rodrigo,V.H.L.. |
| High land productivity is a must for any commercial cultivation including Hevea brasiliensis (rubber). Also, the high demand for natural rubber has placed great pressure on expanding rubber cultivation to new and non-traditional areas. Understanding the ecophysiological principles behind the measures of productivity improvements is vital for wide application of these measures and to assess their sustainability. This review discusses the ecophysiological principles and tools used, along with the measures taken, to address productivity needs in terms of: genotype selection, determination of optimum planting density, and establishment of intercropping systems. Breeding for high yields and selection of suitable genotypes for different growing conditions are a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rubber; Genotype selection; Intercropping; Planting density; Physiology. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000400002 |
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| OLIVEIRA, J. R. P.; SOARES FILHO, W. dos S.; NASCIMENTO, A. S. do; Costa, D. da C.; MATSUURA, F. C. A. U.; GOMES, J. de C.; CARVALHO, J. E. B. de; REINHARDT, D. H. R. C.; OLIVEIRA, R. P. de. |
| Por sua riqueza em vitamina C e adaptação e ambientes tropicais, a cultura da acerola tem se expandido em varias regiões do pais. Os pomares comerciais brasileiros, porem, apresentam grande desuniformidade entre plantas, no tocante a diversos caracteres de importância agronômica, a exemplo de: produtividade, qualidade de frutos, conformação e vigor da copa. Essa variabilidade genética, todavia, enriquecida pela introdução de variedades promissoras provenientes do exterior, particularmente de Porto Rico e Estados Unidos da América do Norte (Florida e Havai), pode permitir a seleção de genótipos horticulturalmente superiores, possíveis de serem indicados como cultivares adaptadas aos nossos diferentes agro ecossistemas. Com base no exposto, a Embrapa... |
| Tipo: Folhetos |
Palavras-chave: Selecao de genotipos; Manejo cultural; Cultura de tecidos; Genotype selection; Cultural management; Malpighia Punicifolia; Tissue culture; Vegetative propagation. |
| Ano: 1998 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/638286 |
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| Gouvêa,Lígia Regina Lima; Silva,Guilherme Augusto Peres; Scaloppi Junior,Erivaldo José; Gonçalves,Paulo de Souza. |
| The objective of this work was to assess, during six years, the temporal stability of natural rubber yield of 25 superior Hevea brasiliensis genotypes, using the Wricke, Eberhart & Russell, Lin & Binns, additive main effect and multiplicative interaction (AMMI) analysis, and harmonic mean of the relative performance of the genetic values (HMRPGV) methods. The IAC 40 and IAC 300 genotypes were identified as stable and high yielding by the Eberhart & Russell, Lin & Binns, HMRPGV, and AMMI Biplot methods. The ranking of the other more stable genotypes identified by these analyses was altered. The observed results in the AMMI Biplot agreed with those observed in the Wricke method for identifying stable, but lower yielding... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hevea brasiliensis; Genotype selection; Genotype x year interaction. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000500006 |
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