produção de mudas de tomateiro em substratos contendo fibra de coco e pó de rocha tomato seedlings production using substrates with coconut fiber and rock waste
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ID: 170904
2008
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Abstract
Com o objetivo de avaliar proporções dos resíduos fibra de coco (FC) e pó de rocha de granito (RG) como substratos na produção de mudas de tomateiro, cultivar Kada Gigante, realizou-se um experimento em casa de vegetação na UFMG-ICA. Foi utilizado o delineamento experimental em blocos ao acaso, com quatro repetições. Os tratamentos foram constituídos por uma testemunha e seis proporções de fibra de coco (FC) e pó de rocha de granito (RG): T1 - Substrato comercial Hortimix®; T2 - 0% FC + 100% RG; T3 - 20% FC + 80% RG; T4 - 40% FC + 60% RG; T5 - 60% FC + 40% RG; T6 - 80% FC + 20% RG; T7 - 100% FC + 0% RG. O cultivo foi feito em bandeja de poliestireno expandido com células de 3,5 x 3,5 x 5,0 cm. Foram avaliados o diâmetro do coleto, a altura da planta, o índice de velocidade de emergência, a percentagem de emergência e a massa fresca e seca da parte aérea e da raiz. Em praticamente todas as características avaliadas o substrato comercial foi superior aos substratos contendo fibra de coco e pó de rocha. Considerando-se apenas os substratos contendo fibra de coco e pó de rocha, as mudas com melhores características foram obtidas com a mistura de aproximadamente 70% em volume de fibra de coco.
A greenhouse experiment was carried out to evaluate the ratio of coconut fiber and rock waste, in the tomato seedling production (cultivar Kada Gigante), in Montes Claros, Brazil. The experimental design was of randomized complete blocks with four replicates. The treatments were composed of a control and six ratios of coconut fiber (FC) and rock waste (RG): T1 - Commercial Substrate Hortimix®; T2 - 0% FC + 100% RG; T3 - 20% FC + 80% RG; T4 - 40% FC + 60% RG; T5 - 60% FC + 40% RG; T6 - 80% FC + 20% RG; T7 - 100% FC + 0% RG. The cultivation was done in polystyrene trays with cells of 3.5 x 3.5 x 5,0 cm. Stem diameter, seedling height, emergency speed index, emergency percentage, root and aerial part of fresh and dry matter were evaluated. In almost all the evaluated characteristics the commercial substrate was better than the substrates containing coconut fiber and rock waste. Among the substrates containing coconut fiber and rock waste, the seedlings with better characteristics were obtained with a mixture of approximately 70% of the volume of coconut fiber.
A greenhouse experiment was carried out to evaluate the ratio of coconut fiber and rock waste, in the tomato seedling production (cultivar Kada Gigante), in Montes Claros, Brazil. The experimental design was of randomized complete blocks with four replicates. The treatments were composed of a control and six ratios of coconut fiber (FC) and rock waste (RG): T1 - Commercial Substrate Hortimix®; T2 - 0% FC + 100% RG; T3 - 20% FC + 80% RG; T4 - 40% FC + 60% RG; T5 - 60% FC + 40% RG; T6 - 80% FC + 20% RG; T7 - 100% FC + 0% RG. The cultivation was done in polystyrene trays with cells of 3.5 x 3.5 x 5,0 cm. Stem diameter, seedling height, emergency speed index, emergency percentage, root and aerial part of fresh and dry matter were evaluated. In almost all the evaluated characteristics the commercial substrate was better than the substrates containing coconut fiber and rock waste. Among the substrates containing coconut fiber and rock waste, the seedlings with better characteristics were obtained with a mixture of approximately 70% of the volume of coconut fiber.
| Reference Key |
sampaio2008horticulturaproduo
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|---|---|
| Authors | ;Regynaldo A Sampaio;Sílvio J Ramos;Denílson O Guilherme;Cândido A da Costa;Luiz Arnaldo Fernandes |
| Journal | research on biomedical engineering |
| Year | 2008 |
| DOI |
10.1590/S0102-05362008000400015
|
| URL | |
| Keywords | Keywords not found |
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