Growth and production of crisphead lettuce cultivars in protected cultivation and high temperatures

Aires, Eduardo Santana; Aragão, Carlos Alberto; Gomes, Itala Laiane Silva; Souza, G. N. de; Andrade, Isa Gabriela Vieira de; Oliveira, Antônio Bruno Nunes; Bezerra, Willian Costa; Yuri, J. E.

doi:10.5039/agraria.v15i1a6288

Cited by 4 publications

(4 citation statements)

References 13 publications

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“…Na primeira época, nota-se que o maior valor para massa fresca da parte aérea foi observado na cultivar Lucy Brown com média de 192,69 Segundo Souza et al (2013), no cultivo de alface americana é de se esperar comportamento morfológico variável quando submetida a diferentes condições edafoclimáticas. Isso porque fenômenos que ocorrem durante a fase de formação de cabeças podem envolver respostas do metabolismo das plantas relacionadas a temperaturas, fotoperíodo, umidade, nutrição, intensidade de luz e outros fatores que podem atuar individualmente ou em conjunto, conforme reporta Aires et al (2020), ao estudarem o efeito de ambientes favoráveis ao desenvolvimento da cultura de alface americana.…”

Section: Resultados E Discussõesunclassified

“…Valor superior de massa fresca (559,3 g) foi encontrado por Yuri et al (2005) na cultivar Lucy Brown, quando cultivada no interior de túnel alto com mulching preto, no período de setembro a novembro, nas condições agroclimáticas de Santo Antônio do Amparo -MG. Santana et al (2009), na região do sub-médio São Francisco -BA, em condições semelhantes de cultivo sob canteiro convencional, tiveram rendimento de 304 e 351 g para as cultivares Grandes Lagos e Rafaela, valores superiores aos do presente estudo em condição climática favorável para alface americana, conforme apontado por Aires et al (2020).…”

Section: Resultados E Discussõesunclassified

“…As casas de vegetação podem ser fechadas ou semifechadas (Aires et al, 2020), onde é possível criar e manter um microclima ideal para o cultivo de plantas. O termo mulch ou mulching é caracterizado pelo uso de material de cobertura e proteção do solo, sendo uma modalidade de cultivo protegido, de uso muito comum em casa de vegetação nas regiões Centro-Sul do país.…”

Section: Introductionunclassified

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Desenvolvimento de cultivares de alface sob casa de vegetação em condição climática tropical semi-úmido

Mendes

Tavares

Rosa

et al. 2020

AGROPECUÁRIA NO SEMIÁRIDO

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Em condição tropical semi-úmido o uso do cultivo protegido pode permitir o cultivo de diferentes tipos de cultivares de alface. Usando mulching em casa vegetação, objetivou-se avaliar diferentes tipos de cultivares de alface em condição de domínio climático tropical semi-úmido. Foram instalados dois experimentos, o primeiro cultivo entre os meses de junho a julho; o segundo entre janeiro a março. Em cada época, foram avaliadas as cultivares Vera, Solaris, Mimosa e Lucy Brown. As variáveis avaliadas foram: massa fresca das plantas (g); comprimento do caule (cm); diâmetro da cabeça (cm); número de folhas por cabeça; volume das cabeças (dm3) e produtividade (Mg ha-1). Em casa de vegetação, a melhor época para cultivar alface é no período de primavera/verão onde se observou maior crescimento, desenvolvimento e rendimento das cultivares de alface; o uso do mulching em casa de vegetação em condição de domínio climático tropical semi-úmido é uma alternativa para o produtor de alface permitindo colher plantas maiores e de melhor qualidade, nessa condição com cultivo protegido usando mulching a cultivar Lucy Brow foi a que melhor se desenvolveu

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Section: Resultados E Discussõesunclassified

Section: Introductionunclassified

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Desenvolvimento de cultivares de alface sob casa de vegetação em condição climática tropical semi-úmido

Mendes

Tavares

Rosa

et al. 2020

AGROPECUÁRIA NO SEMIÁRIDO

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“…Ethylene, a gaseous hormone, is used by plant roots to detect soil compaction (Huang et al, 2022). In a lettuce study, Aires et al (2020) reported that the ethylene response factor1 (LsERF1) transcription factor was absorbed under high-temperature stresses and assisted lettuce in germinating. LsERF1 is a transcription factor involved in the ET signaling pathway.…”

Section: Et As a Plant Growth Regulator On Various Stress Factorsmentioning

confidence: 99%

Phytohormone-Based Biostimulants as an Alternative Mitigating Strategy for Horticultural Plants Grown Under Adverse Multi-Stress Conditions: Common South African Stress Factors

Khetsha,

Van der Watt,

Masowa

et al. 2024

Caraka Tani J. Sustain. Agric.

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Worldwide, it has been recorded extensively that plants are subjected to severe abiotic and biotic stressors. The scientific research community has widely reported that multi-abiotic stressors cause horticultural crop losses, accounting for at least 50 to 70% of the crop yield and quality losses. Therefore, this review focused on the detrimental effects caused by abiotic stress factors occurring in single-, combined- and multi-cell stresses on horticultural plants worldwide, along with the best production systems practices for mitigation during and post-single and combined abiotic or multi-stress damages. A conclusion and recommendation could be reached using the pool of research material, which constituted research articles, reviews, book chapters, thesis, research short communications and industrial short communications from at least twenty-five years ago. Findings showed that some of the leading abiotic stresses are single- and combined abiotic stressors like water deficit, salinity, soil pH, phosphate deficiency, wounding, soil density and pot size. Established commercial and smallholder farmers are globally adapting to plant growth regulators and biostimulants as part of their production systems. However, as much as the effectiveness of biostimulants containing humic acids, algal extracts, plant growth-promoting microorganisms and phytohormones has been reported to promote plant development under multi-stress, only a few studies are focusing on organic phytohormone-based biostimulants on horticultural crops grown under adverse multi stress factoring. In conclusion, the review recommends alternative solutions for emerging South African farmers and growers who cannot afford agricultural insurance options and energy alternatives on the common single- and combined abiotic- or multi-stress-factors.

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Light Intensity Modulates the Accumulation of Carbohydrates, Antioxidant Enzymes and Production of Iceberg Lettuce under Tropical Conditions

et al. 2021

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High solar radiation in tropical regions can affect the development, physiology, and biochemistry of plants. Our aim with this research was to evaluate the biochemical responses and production of iceberg lettuce cultivars under environments with different shadings. An experiment under field conditions was installed in a 4 × 4 factorial scheme. Four cultivars of iceberg lettuce (Great Lakes, Winslow, Delicia, and Balsamo) and four environments with different shadings (three types of shading screens: red, ChromatiNet®, and black; and treatment under the full sun) were evaluated. Forty-five days after transplanting, the plants were harvested, and the biomass was weighed to obtain the fresh consumable part (FCP) and the biochemical parameters: total soluble sugar (TSS), reducing sugar (RS), and the activity of SOD, CAT, and POD. We found that shading modulates biochemical and productive responses of iceberg lettuce, and the main microclimatic factor related to these responses was solar radiation. We observed a negative correlation between RS and FCP. The solar radiation between 16 and 18 MJ·m−2·day−1, observed in the environments with a black screen and ChromatiNet®, promoted the highest activity of the SOD enzyme and average levels of TSS and RS, providing higher FCP of the cultivars Delícia and Balsamo in high temperatures period.

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Growth and production of crisphead lettuce cultivars in protected cultivation and high temperatures

Cited by 4 publications

References 13 publications

Desenvolvimento de cultivares de alface sob casa de vegetação em condição climática tropical semi-úmido

Desenvolvimento de cultivares de alface sob casa de vegetação em condição climática tropical semi-úmido

Phytohormone-Based Biostimulants as an Alternative Mitigating Strategy for Horticultural Plants Grown Under Adverse Multi-Stress Conditions: Common South African Stress Factors

Light Intensity Modulates the Accumulation of Carbohydrates, Antioxidant Enzymes and Production of Iceberg Lettuce under Tropical Conditions

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