Desenvolvimento de mudas de manjericão (Ocimum basilicum L.)em função do recipiente e do tipo e densidade de substratos

Maggioni,; Rosa, Claudia; Rosa, Edgard Jardim; Silva, E.F.; Rosa, Yara Brito Chaim Jardim; Scalon, Silvana de Paula Quintão; Vasconcelos, Aurilene Araújo

doi:10.1590/s1516-05722014000100002

Cited by 20 publications

(14 citation statements)

References 22 publications

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“…These values were statistically higher than that obtained in the commercial substrate, 24%. Lighter substrates such as sand and vermiculite allow greater gas exchange and better drainage, reducing the physical barrier for the initial development of the seedling (Maggioni et al, 2014;Silva et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

Substrate and seed sowing position on the production of Plukenetia volubilis L. seedlings

Jeromini

Silva

Martins

2018

Rev. bras. eng. agríc. ambient.

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Plukenetia volubilis is a species native to the Amazonia and has economic potential due to the high contents of polyunsaturated fatty acids and vitamins of the seeds; however, information about production of seedlings in nursery is scarce. Factors that contribute to fast emergence and generation of vigorous seedlings are desirable for plant production in the nursery. Therefore, this study aimed to identify the most favorable substrate and seed position for the production of P. volubilis seedlings. The seeds were sown in the following four positions: hilum facing up, hilum facing down, seed lying on its cotyledon suture, and seed lying flat on one of its cotyledon faces. The substrates were sand, vermiculite and commercial substrate. Treatments were distributed according to a completely randomized design in a 4 × 3 factorial arrangement (seed position and substrate) with three replicates of 25 seeds each. The following variables were evaluated: emergence percentage; first count of seedlings; number, width and length of leaves; plant height; stem diameter; dry matter of shoots and roots. It was concluded that the production of P. volubilis seedlings is not affected by either substrate or seed position at sowing. The substrates most favorable to the quality of P. volubilis seedlings were the commercial substrate and vermiculite, always for the positions of seed lying on its cotyledon suture, with faces parallel to tube walls, and seed lying flat on one of its faces.

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Section: Resultsmentioning

confidence: 99%

Substrate and seed sowing position on the production of Plukenetia volubilis L. seedlings

Jeromini

Silva

Martins

2018

Rev. bras. eng. agríc. ambient.

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“…When roots have free development, they double its length, considering that the explored space will be eight times larger (Primavesi, 2002). Seedlings could be transplanted directly to the definitive phase of the hydroponic system, considering that plants from trays can show good adaptation to the new environment, higher resistance to mechanic damage during transplant, growing time reduction and, consequently, cost reduction (Reghin et al, 2007, Maggioni, 2014. The aim of this study was to evaluate the performance of lettuce grown under NFT system using seedlings produced under different cell volumes.…”

Section: Resumo Volume Das Células Em Bandejas Influencia Produção Damentioning

confidence: 99%

Volume of cells on trays influences hydroponic lettuce production

et al. 2018

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Lettuce seedlings used on hydroponic cultivation (NFT) are usually produced in trays with small volume, requiring two transplants: from tray to nursery and then to the definitive place. The aim of this study was to verify lettuce performance under NFT system, using seedlings produced in trays with several cell volumes (50, 40, 35, 31, 30, 29, 27, 20 and 10 cm³ cell-1). The tray volumes are considered treatments. The experimental design was completely randomized blocks, with four replicates. Seedlings were transplanted directly to the definitive profile, except those ones produced in 10 cm³ cell-1. Two harvests were performed, at 22 and 29 days after transplant (DAT). We evaluated number of senescent leaves, total number of leaves, shoot fresh mass, root fresh mass, shoot dry mass, stem length and productivity. The best performance was obtained using seedlings produced in trays with higher volume per cell. The nursery phase was not necessary and it was possible to obtain reduction from two to one transplant, corresponding to trays of 20 to 50 cm³ cell-1. Seedlings produced in trays with 40 and 50 cm³ cell-1 made the early harvest possible, at 22 DAT of cultivation under hydroponic NFT system.

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“…The greater water requirement associated with the lighter substrate, such as vermiculite, may have enabled greater gas exchange and better drainage, reducing the physical barrier for the initial seedling development (Maggioni et al, 2014;Silva et al, 2016) as also observed for Plukenetia volubilis L. (Silva et al, 2016;Jeromini et al, 2018).…”

Section: Substrates Equation R²mentioning

confidence: 85%

Water availability and substrate in the emergency and initial development of Bauhinia scandens L.

et al. 2021

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Desenvolvimento de mudas de manjericão (Ocimum basilicum L.)em função do recipiente e do tipo e densidade de substratos

Cited by 20 publications

References 22 publications

Substrate and seed sowing position on the production of Plukenetia volubilis L. seedlings

Substrate and seed sowing position on the production of Plukenetia volubilis L. seedlings

Volume of cells on trays influences hydroponic lettuce production

Water availability and substrate in the emergency and initial development of Bauhinia scandens L.

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