1976
DOI: 10.1590/s0006-87051976000100023
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Observação da nodulação natural em cultivares de amendoim

Abstract: ( 2 ). Cerca de 300.000 ha de amendoim são cultivados no Estado de São Paulo anualmente. Resultados de alguns ensaios sobre a adubação nitrogenada dessa cultura são contraditórios, sendo que na maioria dos casos não há respostas. Por outro lado, são praticamente inexistentes os estudos sobre a fixação simbiótica nessa cultura. Lopes e outros ( 4 ) observaram em Campinas, SP, que a população autóctone de um latossolo roxo parece ser eficiente no cultivar tatu. Embora o amendoim se associe com Rkizobium spp., do… Show more

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“…The low results presented by the cultivar Tatu is due to the fact that this cultivar is old and with low technological levels compared to the other cultivars used in this research which were recently developed with a higher level of technology, using genotypes with better agronomic characteristics during the stages of the genetical enhancement. According to Martins (2006), the cultivar Tatu was officially launched in 2000, however Zanotto (1993), Gabriel (1996) and Lopes (1976) already carried out research on this cultivar, which means that it had been in existence for a long time before its official launch. In the specifications of the cultivars by IAC, it was observed that cultivars 503 and 505 have a productive potential of 6.500 kg ha -1 and OL3 7.000 kg ha -1 , therefore these cultivars must have better morphophysiological characteristics that provide them with higher indices of their characteristics.…”
Section: Discussionmentioning
confidence: 99%
“…The low results presented by the cultivar Tatu is due to the fact that this cultivar is old and with low technological levels compared to the other cultivars used in this research which were recently developed with a higher level of technology, using genotypes with better agronomic characteristics during the stages of the genetical enhancement. According to Martins (2006), the cultivar Tatu was officially launched in 2000, however Zanotto (1993), Gabriel (1996) and Lopes (1976) already carried out research on this cultivar, which means that it had been in existence for a long time before its official launch. In the specifications of the cultivars by IAC, it was observed that cultivars 503 and 505 have a productive potential of 6.500 kg ha -1 and OL3 7.000 kg ha -1 , therefore these cultivars must have better morphophysiological characteristics that provide them with higher indices of their characteristics.…”
Section: Discussionmentioning
confidence: 99%