Production of eggplant from seedlings produced in different environments, containers and substrates Produção de berinjela a partir de mudas produzidas em diferentes ambientes, recipientes e substratos

The seedling quality affects the plant performance in the field and proper techniques can increase the productivity of vegetables. The objective of this study was to evaluate the production of eggplant seedlings, cultivar Embu, under protected environments, containers and substrates, and its develop...

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Bibliographic Details
Main Authors: Edilson Costa, Lucas Gustavo Y Durante, Adriano dos Santos, Cleber R Ferreira
Format: Article
Language:English
Published: Associação Brasileira de Olericultura 2013-03-01
Series:Horticultura Brasileira
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362013000100022
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Summary:The seedling quality affects the plant performance in the field and proper techniques can increase the productivity of vegetables. The objective of this study was to evaluate the production of eggplant seedlings, cultivar Embu, under protected environments, containers and substrates, and its development in the field at the State University of Mato Grosso do Sul, in Aquidauana, Brazil. For seedlings production, each environment was considered an experiment, which was carried out in a completely randomized design, in split-plot scheme (containers x substrates), with eight replications. Subsequently we realized joint analysis of the experiments to compare the environments. In the field, the design was in randomized blocks using four replications. The seedlings were grown in the protected environments: greenhouse covered with polyethylene film, light diffuser, 150 micron, and nursery monofilament screen with 50% of shading (Sombrite®). Inside environments, polystyrene trays with 72 cells and 128 cells were tested. The containers were filled with six substrates, from the combination of cattle manure and cassava stems. In the field were distributed 24 treatments generated from combinations of three factors. In both environments, the best seedlings are formed in trays with 72 cells. For two trays the best seedlings are formed in the greenhouse. In greenhouse, the substrate with 80% cattle manure and 20% of cassava stems promoted better growth of seedlings. In the screened, beyond this substrate, seedlings produced in the substrate with 100% manure showed higher vigor. For all substrates, the best seedlings are formed in tray with 72 cells inside the greenhouse. In the field the combination, "greenhouse + 72 cell tray + 80% manure and 20% cassava stems" was where the plants had better growth and productivity.<br>A qualidade da muda influencia o desempenho da planta a campo e técnicas apropriadas podem elevar a produtividade das hortaliças. Neste trabalho foi avaliada a produção de mudas de berinjela cultivar Embu, com o uso de ambientes protegidos, recipientes e substratos, e seu desenvolvimento a campo, na Universidade Estadual de Mato Grosso do Sul, Unidade de Aquidauana. Na formação das mudas, cada ambiente foi considerado um experimento, que foi conduzido no delineamento inteiramente casualizado em esquema de parcelas subdivididas (recipientes x substratos) com oito repetições. Posteriormente realizou-se análise conjunta dos experimentos para comparação dos ambientes. No campo, o delineamento foi em blocos ao acaso com quatro repetições. As mudas foram produzidas nos ambientes protegidos: estufa agrícola coberta com filme polietileno difusor de luz de 150 &#956;m e viveiro agrícola telado com tela de monofilamento de 50% de sombreamento (Sombrite®). No interior dos ambientes utilizaram-se bandejas de poliestireno de 72 e 128 células, preenchidas com seis substratos, oriundos da combinação de porcentagens de ramas de mandioca triturada e esterco bovino. No campo foram distribuídos os 24 tratamentos gerados a partir das combinações dos três fatores. Em ambos os ambientes as melhores mudas são formadas na bandeja de 72 células. Para ambas as bandejas as melhores mudas são formadas na estufa agrícola. Na estufa agrícola o substrato com 80% de esterco bovino e 20% de ramas promove o melhor desenvolvimento das mudas e no telado, além desse substrato, as mudas produzidas no substrato com 100% de esterco apresentam elevado vigor. Para todos os substratos as melhores mudas são formadas na bandeja de 72 células, no interior da estufa agrícola. A combinação "estufa agrícola + bandeja de 72 células + 80% esterco bovino e 20% ramas de mandioca", foi onde as plantas apresentam melhor desenvolvimento e produtividade.
ISSN:0102-0536