Desempenho De Cultivares De Alface Sob Cultivo Hidropônico Nas Condições Do Norte De Minas Gerais

Aquino, César Fernandes; Silva, Humberto Pereira da; Neves, José Maria Gomes; Costa, Cândido Alves da; Aquino, Flávia Fernandes; Costa, Carlos Pedro de Menezes

doi:10.7127/rbai.v11n300604

Cited by 5 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is significant for lettuce given that this metric is a commercial priority. Leaf numbers in the current study were much higher than those found by Aquino et al (2017), which ranged from 12.8 to 15.6 in loose-leaf lettuce cultivars. According to Sala and Costa (2012), sale of processed and packaged lettuce is growing in Brazil, the United States and Europe.…”

Section: Discussioncontrasting

confidence: 80%

Agronomic potential of biofortified crisphead lettuce (Lactuca sativa) and its reaction to Root-knot nematodes

et al. 2019

View full text Add to dashboard Cite

Lettuce is the most-consumed leafy vegetable in Brazil due to its ease of preparation, nutritional quality, and affordability. Despite these benefits, there are few cultivars of crisphead lettuce (Lactuca sativa) that possess agronomic potential, high carotenoid content and resistance to nematodes. Therefore, we evaluated the agronomic potential of crisphead lettuce genotypes that are resistant to the root-knot nematode. The experiment was conducted at the Vegetable Experiment Station of the Federal University of Uberlandia (UFU), Monte Carmelo Campus. The trial was set up in a randomized block design with 49 treatments (43 genotypes obtained from crosses between Uberlandia 10000 and Belissima and six commercial cultivars) and three replications. After preparing the beds and before transplanting the seedlings, 11 simple samples were taken from each of the three experimental blocks to confirm the presence of nematodes within the experimental area. The following variables were determined 48 days after transplanting: chlorophyll content, leaf temperature, plant diameter, number of leaves per plant, fresh mass and incidence of root gall. The data were submitted to analysis of variance (ANOVA) and an F-test and the means were compared by the Scott-Knott test. Genetic diversity was represented by a dendrogram that was obtained using the hierarchical method of UPGMA and the optimization method of Tocher. We found genetic divergence and agronomic potential among the evaluated genotypes. Specifically, 199#1#1-E, 199#2#1-E, 199#2#2-E, 199#3#1-E, 199#6#1-E and 75#2#2-E presented good agronomic potential, were rich in carotenoids and showed resistance to the root-knot nematode.

show abstract

Section: Discussioncontrasting

confidence: 80%

Agronomic potential of biofortified crisphead lettuce (Lactuca sativa) and its reaction to Root-knot nematodes

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Great Lakes under chromatinet ® fabric and in this environment, the cultivars Irene, Balsamo, Rafaela and Delícia decreased the stem length. According to Aquino et al (2017), this indicates higher resistance of these cultivars to early tillage. No increase in lettuce stem length was observed using shade screens when cultivated from June to August/ 2018.…”

Section: Results and Discusionmentioning

confidence: 96%

Performance of crisphead lettuce cultivars under protected environment in different times of production

et al. 2020

View full text Add to dashboard Cite

Performance of crisphead lettuce cultivars under protected environment in different times of production 1The objective of this work was to evaluate the behavior of Crisphead lettuce as a function of production seasons under different forms of protected environment. Two experiments were carried out in the field at different times: September to December 2017 and June to August 2018, in a randomizaed blocks desing, in a 4 x 7 factorial scheme, the first one being production environments under shade nets: red screen, chromatinet ® screen, black screen and full sun, and the second, lettuce cultivars: Winslow, Irene, Balsamo, Rafaela, Iron Wood, Great Lakes and Delícia. The harvest was carried out at forty-two days after transplanting, where the following variables were analyzed: stem length (cm), total production and commercial productivity (t.ha -1 ). The data were submitted to analysis of variance, and a joint analysis was performed to analyze the treatments effect, then the means were compared by the Scott-Knott test, at 5% probability. The microclimate was altered in the shaded beds, which affected the cultivars development. The cultivation in protected environment provides higher productivity of Crisphead lettuce from September to December, at that time the cultivars Balsamo and Delicia were highlighted under chromatinet ® . In the period of mild temperatures, a better performance was observed for cv. Balsamo in full sun.

show abstract

“…Hydroponic cultivation has been rapidly increasing in Brazil, especially for the production of vegetables, such as lettuce (Aquino et al, 2017), arugula (Jardina et al, 2017), watercress (Lira et al, 2019), green onion (Araujo et al, 2016), and tomatoes (Gonçalves et al, 2018). This cultivation system can mitigate the effects of salt stress on plants because the water potential under hydroponic conditions depends on the osmotic potential, and the potential of the matrix is virtually null in the absence of soil (Soares et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Nutrient and inorganic solute (Na+ and Cl-) content in green onion plants under hydroponic cultivation using brackish water

et al. 2020

View full text Add to dashboard Cite

Cultivation using brackish waters can result in nutritional and metabolic imbalances in several plant species, consequently reducing the production of dry matter (DM) and accumulation of toxic ions (Na+ and/or Cl-) in plants. We evaluated the DM production, and nutrient and inorganic solute (Na+ and Cl-) content in green onion plants (cv. Todo Ano Evergreen - Nebuka) under different levels of nutrient solution salinity in combination with circulation frequencies of this solution. Two experiments were conducted in a hydroponic system, using a completely randomized design, in a 6 × 2 factorial scheme, with five replicates: six levels of nutrient solution salinity (1.5, 3.0, 4.5, 6.0, 7.5, and 9.0 dS m-1) and two solution circulation frequencies (twice and thrice a day). In Experiment I, the evapotranspired depth was replaced using brackish water that was used to prepare each of the salinity levels (used exclusively), whereas in Experiment II, brackish water was used only to prepare each of the salinity levels and public water was used (electrical conductivity [ECw] = 0.12 dS m-1) for replacement in all treatments. The increase in the nutrient solution salinity reduced the production of DM and accumulation of nutrients; the reductions were more pronounced when brackish waters were used exclusively (Experiment I). However, the circulation of solutions thrice a day resulted in the harmful effects of the salinity effect. Replacing the evapotranspirated blade with water supply (Experiment II) mitigated the deleterious effects of salinity. Moreover, three circulations of the nutrient solution daily resulted in lower accumulation of inorganic Na+ and Cl- solutes and increased accumulation of nutrients N, P, K+, Ca2+, Mg2+, and S in the culture.

show abstract

Desempenho De Cultivares De Alface Sob Cultivo Hidropônico Nas Condições Do Norte De Minas Gerais

Cited by 5 publications

References 6 publications

Agronomic potential of biofortified crisphead lettuce (Lactuca sativa) and its reaction to Root-knot nematodes

Agronomic potential of biofortified crisphead lettuce (Lactuca sativa) and its reaction to Root-knot nematodes

Performance of crisphead lettuce cultivars under protected environment in different times of production

Nutrient and inorganic solute (Na+ and Cl-) content in green onion plants under hydroponic cultivation using brackish water

Contact Info

Product

Resources

About