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| Boock,Olavo J.. |
| Experiments with cut potato seed tubers to compare the relative value of lateral parts with whole tubers were conducted at four diilerent districts in the State of São Paulo : Joanópolis, at high and mountainous location, (about 1.000 ms. above sea level) ; Taubaté, in the flat lands on the right bank of the Paraíba river (about 500 ms high) ; Sorocaba, (at 550 ms) and Sta. Rita do Passa Quatro (at 800 ms of altitude). Whole seed tubers yielded better than lateral sets in all these places. Cutting gave good results only in Joanopolis. In the districts with medium altitude good yields were obtained with cut-seeds only by means of irrigation. These results agree with those already obtained in prior experiments (1) which have shown that whole seed tubers give... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1947 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051947000700002 |
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| Boock,Olavo J.. |
| Several trials were conducted with potatoes (Solanum tuberosum L.) to study the relative value of the apical and basal sets, as compared to whole seed tubers, since cutting potatoes before planting has been a matter of discussion. The experiments have been carried out on a high and on a low districts, say, respectively, at Joanópolis mountainous region, and at Taubaté flat lands, the latter on the right bank of Paraíba river, both in the State of São Paulo. Results have shown that on high lands, over 1,000 meters above sea level, the cutting process may be accomplished, though the basal sets have yielded less than apical ones, and whole tubers. Apical sets produced as well as whole tubers. At Taubaté district, aproximately 500 meters above sea level, where... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1947 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051947000100001 |
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| Normanha,Edgard S.; Boock,Olavo J.. |
| In the present work were studied several varieties of manihot of the Ubatuba area on the north coast of the State of São Paulo. The experiments were carried out at the Experiment Station of that locality with a view to compare the production of roots and meal of each variety with that of the variety "Vassourinha", introduced in that district in 1938 by the Division of Roots and Tubers of the Instituto Agronômico. Said variety ("Vassourinha") is the most cultivated all over the State of São Paulo. Results have shown that among the eleven varieties studied the following exceeded the others as regards production of roots and meal: N.° 1 ("Vassourinha") and N.° 120 ("Santa"). Comparing these two one with another, it was found that N.° 1 surpassed N.° 120, not... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1942 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051942001200004 |
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