|
|
|
| Registros recuperados: 148.874 | |
|
| |
|
| |
|
| |
|
|
| Brieger,F. G.; Moreira,Sílvio. |
| The English resumé is given in a different form from the Portuguese "conclusões". In the former we gave mainly the results which may be of general interest, explaining the tables (quadros) and the procedure of statistical analysis, while in the other the properties of the different rootstocks are discussed in detail since they are of immediate local interest. 1. In a previous publication, Moreira (19) explained the layout and the first results of an experiment, under way since 1936 in the Limeira Exp. Sta., on the influence of twelve different types of Citrus rootstocks on three scion varieties : the oranges "Baianinha" and "Pera" and the grape-fruit "Marsh Seedless". We report here three main results obtained during the first six years of the experiment:... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051945001000001 |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Brieger,F. G.. |
| 1) The present paper deals with variations in the structure of the inflorescences of the Maydeae Americanae, especially of the ear of Zea Mays, which came under observation during our genetical studies during the last 10 years. Care was tauken to include only such structures which were observed frequently and had in general an aspect which could not be described as a pathological abnormality, but rather as a reversion to a phylogenetically primitive type or as a new form. The aberrations may be summarized as follows: a) Individual flowers. Eeversion to the hermaphrodite state of the usually unisexual flowers in Maydeae were described. Such flowers are however already so well known that no details need to be given. b) Many flowered spikelets. The spikelet... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051945001100001 |
| |
|
| |
|
| |
|
| |
|
|
| Paiva Netto,J. E. de; Catani,R. A.. |
| In the vicinity of the city of Rio Claro (S. Paulo, Brazil) occurs a type of calcareous rock which was studied chemically, spectrographically and roentgenographically. The roentgenograph investigations showed that the rock belong to the hydromagnocalcite, CaCO3+Mg(OH)2, and not the dolomitic type as it was considered up to the present. The first four roentnogramms show the crystalline structure of the mineral and the fifth the crystalline structure of the synthetic mixture of CaCO3+Mg(OH)2 in the proportions indicated by the chemical analysis of table I. The spectrographical analysis revealed the presence of: Mn, Fe, Al, Sn, Cu, Na, Sr, Zn and Pb, the percentages of which reached a value less than 0,1%. |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051945000500003 |
| |
|
|
| Camargo,A. Pais de. |
| This paper reports a preliminary study of four sweet potato varieties, Russia, Napoleão, Roxa and Viçosa, carried cut in 1939-40 at the Central Experiment Station, Instituto Agronomico. Comparative plots of each variety were harvested after 3, 4, 5, 6, 7, 8 and 9 months of vegetation, the product being then examined for the following characters : a) Total yield b) Number of roots c) Average weight of the potates d) Production of different grades e) Qualities of the fresh roots f) Culinary value of the sweets potatoes The yield after three months of vegetation was very small for the four varieties, but increased considerably in the later harvests. The variety Napoleão attained its highest yield after six months, being early; Roxa yielded most after seven... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051945001200004 |
| |
|
| |
|
| |
|
|
| Krug,C. A.; Carvalho,Alcides. |
| No presente artigo, após uma descrição detalhada dos caracteres da variedade anomala de C. arabica, são relatados os resultados da sua análise genética. Concluiu-se que se trata de uma forma recessiva em relação ao tipo normal da espécie, propondo-se para o único par de gens responsáveis o símbolo an an. A ação dêste par de gens é notável, afetando a quase totalidade dos caracteres da planta, como : porte, ramificação, fôlhas, flores, frutos e sementes. O F1, normal x anômala, demonstra dominância praticamente total do tipo normal, manifestando-se a presença do alelo recessivo apenas esporadicamente, deformando, possivelmente sob ação de determinados fatôres do meio ambiente, ou em consequência de alguma anomalia citológica, os ápices de alguns pares de... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051945001200002 |
| |
|
|
| Boock,Olavo José. |
| 1 - As experiências relatadas no presente trabalho se referem ao emprêgo de diferentes adubos fosfatados na cultura da batata (S. tuberosum L.) e conduzidas em Campinas, Taubaté e Joanópolis, em 1940 e 1944. 2 - As análises sumárias das terras indicaram variações do fósforo, desde muito fraco (Joanópolis), regular (Campinas) até ótimo (Taubaté) . 3 - As menores produções foram obtidas dos canteiros sem adubo. 4 - O emprêgo ùnicamente de adubos azotados mais potássicos, pràticamente, não determinou aumento de produção sôbre os "sem adubo". 5 - O acréscimo de adubos fosfatados aos azotados e potássicos causou um aumento altamente significativo de produção. 6 - Os canteiros em que além dos adubos azotados e potássicos, incluímos o Superfosfato apresentaram em... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051945000500004 |
| |
| Registros recuperados: 148.874 | |
|
|
|
