Perfil metabólico por RMN de 1H e avaliação citotóxica do fungo endofítico Colletotrichum gloeosporioides isolado de Eugenia jambolana, em diferentes meios de cultivo

Pós-graduação em Química - IQ

Gesso aplicado na superfície do solo no desenvolvimento do arroz de terras altas sob plantio direto

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Indicadores de qualidade física em latossolos cultivados com milho e soja sob semeadura direta e cultivo convencional

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

Estrutura genética de populações de Rhizoctonia oryzae-sativae do arroz em São Paulo, Brasil, e em meta, Colômbia, e potencial adaptativo do patógeno à Urochloa spp

Pós-graduação em Agronomia - FEIS

Resíduos agrícolas e argila expandida no cultivo da orquídea Oncidium baueri Lindl.

For orchid cultivation in containers is essential to select the right substrate, since this will influence the quality of the final product, it serve as a support for the root system of the plants. This study aimed to evaluate different agricultural residues and expanded clay in Oncidium baueri Lindl. orchid cultivation. The plants were subjected to treatments: pinus husk + carbonized rice husk, pinus husk + coffee husk, pinus husk + fibered coconut, pecan nut husk, expanded clay, fibered coconut, coffee husk, carbonized rice husk, pinus husk. After eleven months of the experiment, the following variables were evaluated: plant height; largest pseudo-bulb diameter; number of buds; shoot fresh dry matter; the longest root length; number of roots; root fresh matter; root dry matter; and electric conductivity; pH and water retention capacity of the substrates. Except the expanded clay, the other substrates showed satisfactory results in one or more traits. Standing out among these substrates pinus husk + coffee husk and pine bark + fibered coconut, which favored the most vegetative and root characteristic of the orchid. The mixture of pinus husk + coffee husk and pinus husk + fibered coconut, provided the best results in vegetative and root growth of the orchid Oncidium baueri and the expanded clay did not show favorable results in the cultivation of this species.

Impactos do manejo de um sistema plantio direto no crescimento e produtividade do arroz de terras altas e feijão de inverno em sucessão e nos atributos do solo

Pós-graduação em Agronomia - FEIS

Uso de resíduos madeireiros da Amazônia brasileira no cultivo in vitro de Lentinus strigosus

Lentinus strigosus (Schwein.) Fr. is an exploitable edible mushroom occurring in the Brazilian Amazon, being part of a huge diversity of edible mushrooms which are little grown. The use of regional waste is recommended to reduce production costs of any kind of edible mushroom. Thus, the mycelial growth of L. strigosus in culture media based on regional wood waste extract by using substrates based on Protium puncticulatum, Cariniana micrantha and Caryocar glabum sawdust, supplemented with 20% of wheat bran (Triticum aestivum), corn bran (Zea sp.) or rice bran (Oryza sp.) was observed. Eucalyptus (Eucaliptus sp.) sawdust was used for comparison with the other wood wastes because it is commonly used in the cultivation of edible fungi. The experimental design employed was totally randomized, in 4 x 3 factorial scheme (sawdust x bran), adding up 12 treatments with 5 repetitions, being that each repetition corresponded to a Petri dish, totalizing 60 dishes, incubated at 35 ºC. The diameter of the colony was daily evaluated until the fungus reached the borders of the Petri dish in one of the treatments. After that period, the media based on P. puncticulatum sawdust obtained thebest results of mycelial growth, showing potential to be used as an alternative residuein a future production of L. strigosus in the state of Amazonas.

Atividade da enzima nitrato redutase em cultivares de arroz de terras altas

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Resíduos de bananeira como substrato base para o cultivo in vitro de Coprinus comatus

Coprinus comatus is an edible and lignolitic fungus which has presented great potential for commercial use due to its easy development in the different residues, such as banana tree leave. Thus, the mycelial growth of Coprinus comatus in culture media based on leaves of Thap-Maeo, Prata-Anã, Pelipita and Caipira banana tree cultivars, supplemented with 20% of wheat, soy and rice brans, was evaluated. 7 mm-wide discs of CCO 01/01 strain of C. comatus were inoculated in the middle of Petri dishes containing culture medium, inside a laminar flow chamber. Next, the dishes were arranged totally at random inside an incubator at 25 ºC. The daily measurements of the mycelial growth began after 24 hours, until one of the treatments reached the borders of the Petri dish. According to the results obtained, we verified that there was not effect of the kind of supplementation for culture media based on Thap-Maeo, Prata-Anã and Pelipita; the best growth averages for culture media based on Caipira were provided by wheat and rice brans. Therefore, banana residues may be a viable and ecologically correct choice for the cultivation of C. comatus, especially for Thap-Maeo and Prata Anã sorts, which provided the best growth averages, regardless of the supplementation used.

Produção de conídios do fungo entomopatogênico Metarhizium anisopliae em diferentes condições de cultivo e em biorreator de bandeja

Pós-graduação em Microbiologia - IBILCE