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Deep planting improved stem root growth, flower yield and quality of Lilium cultivars

Horticultura Brasileira, 2022-06, Vol.40 (2), p.143-150 [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/s0102-0536-20220203

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  • Title:
    Deep planting improved stem root growth, flower yield and quality of Lilium cultivars
  • Author: Hani, Muayyad Bany ; Othman, Yahia A ; Al-Ajlouni, Malik G ; A’saf, Tala S
  • Subjects: HORTICULTURE
  • Is Part Of: Horticultura Brasileira, 2022-06, Vol.40 (2), p.143-150
  • Description: ABSTRACT Lily species are considered one of the most important cut flowers worldwide. With annual production of 282 million flowers and total value of $200 million, lily is among the top five cut flower species auctioned in the international flower stock markets. The objective of this study was to assess the effect of different planting depths on morphology, physiology, root growth and flower quality of lilies. Three hybrid lilies [Lilium × elegans; Orienpet (‘Maytime’, white) and L.A. (‘Fangio’, pink and ‘Pavia’, yellow)] were used. Deep planting at 25 cm significantly improved total and stem root systems, stem diameter and leaf area. No significant differences were noticed between planting depths for plant height, chlorophyll content, and gas exchange (photosynthesis, stomatal conductance and transpiration). Flower quality variables, specifically, vase life from deep planting were higher in 25-cm compared to 5 and 15. The ‘Maytime’ cultivar had higher leaf area, total and stem roots, flower diameter, number of days to flowering, and brighter color (L*) while the ‘Fangio’ had higher leaf number per plant, more basal roots, flower number per plant, vase life, and red color coordinate (a*). Overall, our results revealed that lily growers can increase their lily flower quality by adopting the deep planting at 25 cm. RESUMO As espécies de lírio são consideradas uma das flores de corte mais importantes do mundo. Com produção anual de 282 milhões de flores e valor total de US$ 200 milhões, o lírio está entre as cinco principais espécies de flores de corte leiloadas nas bolsas internacionais de flores. O objetivo deste trabalho foi avaliar o efeito de diferentes profundidades de plantio na morfologia, fisiologia, crescimento radicular e qualidade floral de lírios. Três lírios híbridos foram avaliados [Lilium × elegans; Orienpet (‘Maytime’, branco) e L.A. (‘Fangio’, rosa e ‘Pavia’, amarelo)]. O plantio profundo a 25 cm melhorou significativamente o sistema radicular total e do caule, o diâmetro do caule e a área foliar. Não foram observadas diferenças significativas entre as profundidades de plantio para altura de planta, teor de clorofila e trocas gasosas (fotossíntese, condutância estomática e transpiração). As variáveis de qualidade da flor, especificamente, a vida de vaso do plantio profundo foi maior em 25 cm comparado a 5 e 15. A cultivar ‘Maytime’ apresentou maior área foliar, quantidade de raízes totais e do caule, diâmetro da flor, número de dias para floração e cor mais brilhante (L*) enquanto a ‘Fangio’ apresentou maior número de folhas por planta, raízes basais, número de flores por planta, vida de vaso e coordenada de cor vermelha (a*). No geral, nossos resultados revelaram que os produtores de lírio podem melhorar a qualidade da flor de lírio adotando o plantio profundo a 25 cm.
  • Publisher: Associação Brasileira de Horticultura
  • Language: English;Portuguese
  • Identifier: ISSN: 0102-0536
    ISSN: 1806-9991
    EISSN: 1806-9991
    DOI: 10.1590/s0102-0536-20220203
  • Source: SciELO
    Geneva Foundation Free Medical Journals at publisher websites
    Alma/SFX Local Collection
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