Different tray cell volumes for lettuce grown in conventional and hydroponic system

Ceccherini, Guilherme José; Lima, Tiago José Leme de; Sala, F.

doi:10.1590/0103-8478cr20190491

Cited by 4 publications

(5 citation statements)

References 7 publications

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“…The plant height showed significant positive correlation at 5% probability, with the shoot dry mass, 0.58 g (Figure 2). These results are in accordance with Ceccherini et al (2020) who, evaluating the crispleaf Vanda under hydroponic system, found plants ranging from 19 to 28 cm plant -1 .…”

Section: Genotypessupporting

confidence: 92%

“…The number of lettuce leaves is one important trait, since the leaves are the product to be consumed when it comes to this vegetable, so that one genotype which shows a greater number of leaves stands out among the others. Ceccherini et al (2020), evaluating crispleaf lettuce Vanda under hydroponic system, found 27 leaves per plant, approximately. The light interception, which will be converted into chemical energy, is facilitated when a greater number of leaves can be noticed; so, plants with more leaves will show a faster development, will be more vigorous and can be even early (Taiz et al, 2017).…”

Section: Genotypesmentioning

confidence: 99%

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Morphological evaluation of lettuce genotypes grown under hydroponic system

et al. 2021

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Crispleaf lettuce, which is a light green leaf lettuce, is the most popular leafy vegetable in Brazil. However, it is relevant to evaluate agronomic traits of lettuce with more intense green color leaves considering the increase in consumer demand. Thus, the aim of this study was to evaluate lettuce genotypes about the different chlorophyll contents and correlate with green mass production in a hydroponic system. Ten lettuce inbred lines and two cultivars (Vanda and Luiza) were evaluated for agronomic traits and chlorophyll contents in leaves. A randomized block design with four replicates was used. The chlorophyll content was variable among the genotypes, ranging from 43.3 (Luiza) to 20.8 (Vanda). The genotypes with the highest chlorophyll content were those who showed the lowest mass production, but no correlations were found between these variables, though.

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Section: Genotypessupporting

confidence: 92%

Section: Genotypesmentioning

confidence: 99%

Morphological evaluation of lettuce genotypes grown under hydroponic system

et al. 2021

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“…They obtained 183.4 g and 124.5 g of fresh biomass per plant for the cultivar Verônica, respectively. On the other hand, Ceccherini et al (2020) studied a different number of tray cells for lettuce production under conventional and hydroponic systems for summer cultivation. They obtained a fresh mass of about 280 g plant −1 .…”

Section: Fertilizermentioning

confidence: 99%

Macronutrient cycling in hydroponic lettuce cultivation

Macedo¹,

Lopes²,

Lopes³

et al. 2022

Rev. ambiente água

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In order to address issues of limited resources and contamination by fertilizers, nutrient solutions may be reused in hydroponics as an alternative to their disposal in the environment. This work evaluated the feasibility of nutrient replacement for the nutrient solutions reused during lettuce hydroponic cultivation. The experiment was carried out in an agricultural greenhouse in an NFT hydroponic system using the “Milena” lettuce cultivar. The experiment was divided into two stages: 1) monitoring and data collection and proposition of nutrient replacement management; and 2) validation of the proposed replacement management. Monitoring the consumption of the crop's nutritional solution in the first stage served as the basis for the proposed nutritional replacement management. Management was validated in the second stage through the evaluation of fresh and dry mass, crop nutritional status, and the amount of the fertilizer applied in the treatments: T1 - nutrient replacement with nutrient solution reuse; and T2 - nutrient replacement without nutrient solution reuse. The fresh and dry mass data and the amount of nutrients absorbed by the plants were submitted to the t-test at 5% probability, showing no significant difference between the treatments, making it possible to conclude that the nutrient solution reuse provided nutrient replacement during the lettuce crop cultivation. Keywords: hydroponic system, Lactuca sativa L., macronutrient rational use.

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“…Certain aspects of seedling production management (CLÁUDIO et al, 2020;VETRANO et al, 2020) determine seedling quality and consequently their production. In a work assessing the effect of seedling production tray cell volumes on the quality of seedlings, CECCHERINI et al (2020) found that factors related to the cell volume affect their quality and production performance. These results highlight the importance of high quality seedlings and exemplify the need for studies determining transplant quality.…”

Section: Introductionmentioning

confidence: 99%

Plot and sample sizes for biometric variables in lettuce seedlings

Gonçalves,

Prins,

Diel

et al. 2024

Cienc. Rural

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In order to ensure reliable inferences in scientific experiments, sampling criteria should be determined and defined during the experimental design phase. Determining plot and sample sizes without scientific criteria could result in resource and labor inefficiencies with no gain in experimental precision. In this work we estimate plot and sample sizes for biometric variable analyses in lettuce seedlings. The seedlings were sown in four expanded polystyrene foam transplant trays with 128 and 200 cells. Foliar area, stem diameter, shoot height, root length, root volume, root area, fresh and dry shoot and root masses. The methods described by Paranaiba (PARANAIBA et al., 2009) and Cochran (COCHRAN, 1977) were used for plot size and sample size estimations, respectively. Sample size varied according to the variables analysed and transplant tray cell number. Root variables required the highest number of samples. For a 10% margin of error, 12 seedlings were necessary for evaluations in a 128 cell tray, while 11 seedlings were required for analysis in 200 cell trays.

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Different tray cell volumes for lettuce grown in conventional and hydroponic system

Cited by 4 publications

References 7 publications

Morphological evaluation of lettuce genotypes grown under hydroponic system

Morphological evaluation of lettuce genotypes grown under hydroponic system

Macronutrient cycling in hydroponic lettuce cultivation

Plot and sample sizes for biometric variables in lettuce seedlings

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