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Growth, development and quality of gladiolus ‘White Goddess’: season, shade net, and mulching

Horticultura Brasileira, 2022-12, Vol.40 (4), p.441-450 [Peer Reviewed Journal]

This work is licensed under a Creative Commons Attribution 4.0 International License. ;ISSN: 0102-0536 ;ISSN: 1806-9991 ;EISSN: 1806-9991 ;DOI: 10.1590/s0102-0536-20220413

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  • Title:
    Growth, development and quality of gladiolus ‘White Goddess’: season, shade net, and mulching
  • Author: Becker, Dislaine ; Paulus, Dalva ; Bosco, Leosane Cristina
  • Subjects: HORTICULTURE
  • Is Part Of: Horticultura Brasileira, 2022-12, Vol.40 (4), p.441-450
  • Description: ABSTRACT To reduce the risks associated with the production of gladiolus flowers in the climatic conditions of southwestern Paraná, Brazil, this study characterized the growth, development, and floral stem quality of plants cultivated under different-colored shade nets and mulching in four growing seasons. The gladiolus cultivar ‘White Goddess’ was grown in beds with and without mulching in the soil. Three shade nets individually stained black, silver and red all with 35% shading, were used in this study, and an additional treatment (control) in which plants were grown in full sun. Growth (LAI and height), development (cycle in days, and degree-days), and flower quality (size and stem damage) were evaluated in eight plants in each treatment. Plants were distributed in a randomized block design in a factorial scheme (season x mulching x shade screen). The cycle ranged from 66 to 89 days and 1732 to 1268°C day. The mean difference of the cycle between treatments was 3 days. Less floral stem damage happened under silver net and was more in full sun. The shading net associated with mulching favored the growth characteristics of the plants, and in autumn, the flowers had the highest quality standard. RESUMO Para reduzir os riscos associados à produção de flores de gladíolo nas condições climáticas do sudoeste do Paraná, Brasil, este estudo caracterizou o crescimento, desenvolvimento e qualidade de hastes florais de plantas cultivadas sob telas de sombreamento de diferentes cores e com cobertura morta em quatro épocas de cultivo. A cultivar de gladíolo ‘White Goddess’ foi cultivada em canteiros com e sem cobertura morta no solo. Três telas de cor preta, prata e vermelho, todas com 35% de sombreamento, foram utilizadas neste estudo, e um tratamento adicional (controle) em que as plantas foram cultivadas a pleno sol. O crescimento (IAF e altura), o desenvolvimento (ciclo em dias e graus-dia) e a qualidade das flores (tamanho e dano na haste) foram avaliados em oito plantas de cada tratamento. As plantas foram distribuídas no delineamento em blocos casualizados no esquema fatorial (época x cobertura morta x tela de sombreamento). O ciclo das plantas variou de 66 a 89 dias e 1732 a 1268°C dia. A diferença média de duração do ciclo, entre os tratamentos, foi de 3 dias. Menos danos nas hastes florais ocorreram sob a tela prata e mais danos foram observados em pleno sol. A tela de sombreamento associada à cobertura morta favoreceu as características de crescimento das plantas, sendo que no outono, as flores apresentaram o maior padrão de qualidade.
  • Publisher: Associação Brasileira de Horticultura
  • Language: English;Portuguese
  • Identifier: ISSN: 0102-0536
    ISSN: 1806-9991
    EISSN: 1806-9991
    DOI: 10.1590/s0102-0536-20220413
  • Source: SciELO
    GFMER Free Medical Journals
    Alma/SFX Local Collection
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