Bragantia: Recent submissions

  • Krug, C. A.; Mendes, J. E. T.; Carvalho, A. (Instituto Agronômico (IAC), 1949-09)
    Uma nova variedade de Coffea arabica L., provavelmente originária de Manhumirim, Estado de Minas Gerais, e cultivada em pequena escala no Estado do Espírito Santo, foi recebida, pelo Instituto Agronômico de Campinas, em ...
  • Krug, C. A. (Instituto Agronômico (IAC), 1949-01)
  • Scaranari, H . J .; Infobzato, R . (Instituto Agronômico (IAC), 1952-07)
    Root .systems of the following leguminous plants used for green manure in coffee plantations were studied :- Canavalia ensiformins D. C., Crotalaria juncea L., Styzolobium sp (Mucuna anã) and Glycine max (L). Merrill var. ...
  • Mendes, J. E. Teixeira (Instituto Agronômico (IAC), 1951-10)
    Foi continuado o ensaio do desbaste dos ramos inferiores do cafeeiro, instalado na Estação Experimental Central de Campinas, em 1932. O ensaio compreende duas séries : a) desbastada ; b) não desbastada. Cada série se compõe ...
  • Mendes, J. E. T. (Instituto Agronômico (IAC), 1950-07)
    A new method of propagation of the coffee plant by stem-cuttings has been developed. Single-node stem pieces with two opposite leaves were split longitudinally in two halves. These were treated by a hormone and rooted in ...
  • Mendes, Heli Camargo (Instituto Agronômico (IAC), 1956-04)
    Since 1946 several attempts have been made to grow coffee plants (Coffea arabica L. var. bourbon (B. Rodr.) Choussy) in Hoagland's nutrient solution. Growth of the plants is quite satisfactory in the early stages, but a ...
  • Mendes, J. E. Teixeira (Instituto Agronômico (IAC), 1951-01)
    O ensaio de variedades de cafeeiros foi iniciado na Estação Experimental Central de Campinas, em 1931. A primeira colheita foi realizada em 1935. Em 1939, foi feita a publicação dos resultados referentes ao período 1935-38. ...
  • Franco, Coaraci M. (Instituto Agronômico (IAC), 1951-04)
    The coffee plant does not thrive well under shade in most of the coffee areas of the State of São Paulo, Brazil. It has been shown that water competition from the shade trees during the dry season is the factor responsible ...
  • Franco, Coaraci M.; Inforzato, Romeu (Instituto Agronômico (IAC), 1951-04)
    The present paper discusses the amount of water lost by the soil through the transpiration of coffee plants and shade trees in shaded coffee plantation. All methods and techniques employed in the study of transpiration of ...
  • Tosello, André (Instituto Agronômico (IAC), 1951-04)
    In the State of São Paulo, coffee cherries, after harvesting, are usually put to dry, in the open or are artificially dried until reaching a percentage of about 18% of water. With this humidity, the coffee husks can easily ...
  • Costa, A. S.; Mendes, J. E. Teixeira (Instituto Agronômico (IAC), 1951-07)
    A type of leaf chlorosis is shown by plants of excelsa coffee growing in nursery beds in a lath house at the Instituto Agronômico, Campinas. Tests made with various elements showed that this type of chlorosis is due to ...
  • Stevens, W. L.; Fraga Jr., C. G. (Instituto Agronômico (IAC), 1951-10)
    This paper was written primarily to illustrate the process of fitting constants to non-orthogonal data. The design of the experiment, on the pruning of lower branches of coffee-trees, was systematic (see plan at the ...
  • Mendes, A. J. Teixeira (Instituto Agronômico (IAC), 1951-10)
    The cultivation of coffee in the American coffee producing countries is not faced with any serious handicap. The future can not be far distant, however, when it will be necessary to establish new plantations back on the ...
  • Krug, C. A.; Mendes, J. E. T.; Carvalho, A.; Mendes, A. J. T. (Instituto Agronômico (IAC), 1950-01)
    Nos extensos trabalhos de melhoramento do cafeeiro, há 18 anos em realização na Subdivisão de Genética do Instituto Agronômico, tem-se dedicado especial atenção à espécie C. arabica L., pelo fato de todos os nossos cafèzais ...
  • Medina, Dixier M. (Instituto Agronômico (IAC), 1950-02)
    Only one plant of Coffea arabica L. var. rugosa K.M.C., is available for study Its fruit production is very low. Of the progeny observed, none has reproduced th rugose condition of the leaves characteristic of the parent ...
  • Mendes, A. J. T. (Instituto Agronômico (IAC), 1950-03)
    No presente trabalho são apresentadas as observações realizadas sôbre a microsporogênese nas variedades semperflorens e caturra, de Coffea arabica L. Notou-se que, no início da prófase, os cromossômios se colorem muito ...
  • Mendes, Cândida H. T. (Instituto Agronômico (IAC), 1950-04)
    This paper presents the results of cytological observations on microsporogenesis in the self-sterile species Coffea canephora. It was found difficult to study chromosome structure in the first stages of meiosis because the ...
  • Mendes, Cândida H. T. (Instituto Agronômico (IAC), 1950-04)
    A study has been made of the embryo sac in self-sterile Coffea canephora flowers of different ages. The process was observed to be normal and included the formation of two synergides and one egg cell in the micropilar ...
  • Carvalho, A.; Krug, C. A.; Mendes, J. E. T. (Instituto Agronômico (IAC), 1950-06)
    O dimorfismo dos ramos tem sido observado em vários gêneros de plantas, tais como Gossypium, Theobroma, Hedera, Musa, Araucária, Castilla, bem como em Coffea. Tal fenômeno se carateriza por uma diferenciação somática, que, ...
  • Franco, Coaraci M.; Inforzato, Romeu (Instituto Agronômico (IAC), 1950-09)
    In determinations made with a porometer it was verified that the stomatal opening of coffee leaves increases in size immediately after the leaves are detached from the plant (fig. 1). This fact indicates that the method ...

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