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Ribeirão Preto, Brazil

Branco R.B.F.,APTA Centro Leste | de Santos L.G.C.,Ensistec | Goto R.,Sao Paulo State University | Ishimura I.,IAC UPD | And 2 more authors.
Horticultura Brasileira | Year: 2010

With the growing demand for ecological products new technologies are required for organic cultivation systems in order to provide a sustainable growth of this activity. This experiment evaluated the performance of vegetable cultivars and hybrids growing successively in the organic system, in different growth environments. The experimental design was randomized blocks with split split-plots with 3 replications, resulting in 24 experimental units. The following treatments were assessed: a) two irrigation systems, sprinkle and drip, b) two soil covers, plastic and straw of sugar cane and c) two hybrids or cultivars. Two different cropping sequences were carried out: (1) iceberg lettuce - tomato - broccoli and; (2) crisp lettuce - snap beans - cabbage. The agronomic characteristics of each species were evaluated. In sequence 1, iceberg lettuce growth performed better when irrigated by the drip system, but there was no difference between the soil covers and 'Rubette' presented higher yield. Higher tomato yields were observed in "mulching" plastic regardless the irrigation system and broccoli was unaffected by treatments. In sequence 2, crisp lettuce and snap beans were more productive when irrigated by drip and grown on plastic covering. Cabbage performed better with plastic film covering soil surface. Source

Martins A.N.,APTA Medio Paranapanema | Furlaneto F.P.B.,APTA Centro Oeste | Dias N.M.S.,University of Sao Paulo | Suguino E.,APTA Centro Leste
Revista Brasileira de Fruticultura | Year: 2010

Brazil is in the fourth ranking position in the banana producing countries. The state of Sao Paulo accounts for approximately 17% of the national production. The areas of banana production, but restricted to the coastal strip of the state, are expanding and occupying regions of the Sao Paulo plateau. To achieve high yields, with fruit quality of banana, growers are adopting new technologies and the fertirrigation has been occupying a prominent place in the new production systems. In order to assess the economic viability of the use of potassium in different doses (0; 300; 600 e 900 kg K2O.ha-1.ano-1) in experimental planting in the Middle Paranapanema, in the state of São Paulo, were estimated values of the production cost and economic indicators, such as Total Operating Cost (TOC), Net Revenue and Profitability Index, of systems fertirrigated in the banana crop. According to the methodology, the use of potassium in dose of 900 kg K2O.ha-1.ano-1, applied through fertirrigation system can be recommended for banana planting, 'Willians' cultivar, in the Middle Paranapanema, state of Sao Paulo. Source

Camolesi M.R.,Laboratorio SGS | Neves C.S.V.J.,State University Londrina | Martins A.N.,APTA Centro Oeste | Suguino E.,APTA Centro Leste
Semina:Ciencias Agrarias | Year: 2012

The banana crop is considered an economic alternative for farmers of the Médio Paranapanema region, in the Planalto Paulista, Brazil. This study aimed to identify banana plants genotypes adapted to local soil and climatic conditions. The experimental area was installed in the municipality of Palmital, SP, with plantlets of nine cultivars: Caipira, Thap Maeo, Prata Zulu, Preciosa, Maravilha, PV 4253, Nanicão IAC 2001, Nanicão Jangada and Grande Naine. Vegetative and reproductive parameters of the plants were evaluated, besides the characteristics of the fruits. The genotypes belonging to Cavendish subgroup showed better vegetative and productive results, with emphasis for 'Nanicao Jangada' that had the best performance for the most production characters evaluated. The cultivars Prata Zulu and Thap Maeo had results similar to Nanicão IAC 2001 cultivated in the region, and can be an alternative crop since they have resistance to yellow and black sigatokas, major diseases of the crop. The genotypes Maravilha and PV4253 showed to be promising for the region, and need to be evaluated further in subsequent cycles. Source

Blat S.F.,APTA Centro Leste | Sanchez S.V.,CATI SAA | de Araujo J.A.C.,Sao Paulo State University | Bolonhezi D.,APTA Centro Leste
Horticultura Brasileira | Year: 2011

This research was carried out in Ribeirão Preto, São Paulo State, Brazil, from February to April, 2006. The performance of five lettuce cultivars (Pira Roxa, Belíssima, Locarno, Crespona Gigante and Verônica) was evaluated, growing the plants in two environments (conventional and acclimatized greenhouse) in hydroponic system NFT. A randomized-block experimental design was used for each environment, with three replications and five cultivars. The environments were compared through joint analysis. Evaluations were done for fresh and dry mater of the aboveground part, stem, and roots; number of leaves larger than 10 cm and total number of leaves. The cultivars Crespona Gigante and Verônica were prominent with regard to green and dry mass of the aboveground part, leaves, and roots, as well as to the number of leaves larger than 10 cm. The interaction cultivar x environment was not significant, demonstrating that the cultivars had similar behavior in both environments. Source

Perioto N.W.,APTA Centro Leste | Perioto N.W.,Sao Paulo State University | Lara R.I.R.,APTA Centro Leste | de Oliveira A.L.S.,APTA Centro Leste
Check List | Year: 2013

The present note extends the geographic range of Austroleon dispar Banks, 1909 to Brazil based on the examination of three females and one male collected in the Estação Ecológica Jataí, Luiz Antônio, São Paulo. The present finding indicates that A. dispar is associated with dry ecosystems, at least in part of its geographic distribution. © 2013 Check List and Authors. Source

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