Longevity and Ethylene Production During Development Stages of Two Cultivars of Lilium Flowers Ageing on Plant or in Vase

Burchi, G.; Nesi, B.; Grassotti, A.; Mensuali-Sodi, A.; Ferrante, António

doi:10.17660/actahortic.2005.682.106

Cited by 6 publications

(1 citation statement)

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“…Recent studies showed that the application of exogenous chemicals and hormones, plant nutrition and cultivar breeding improved cut flower growth and quality (Burchi et al 2005(Burchi et al , 2010Treder 2005). For example, foliar application of potassium sulphate and sucrose onto Asiatic lily (cvs.…”

Section: Flower Qualitymentioning

confidence: 99%

Increasing nutrient levels promote growth and flower quality in lilies grown under soilless culture

Al-Ajlouni¹,

Ayad²,

Othman³

2017

Hortic. Sci.

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This research was aimed at assessing the impact of different doses of nutrients on growth and flower quality of the Asiatic hybrid Lilium ((Lilium × elegans Thunb.) cv. 'Fangio') under the soilless culture. Five nutrient (fertigation) regimes were applied (T1: daily, T2: twice a week, T3: weekly, T4: twice a month and T5: control). Increasing the nutrient supply increased chlorophyll content index (SPAD, 45-93%), leaf area (30-55%), number of flowers per plant (25-67%) and substrate electrical conductivity (EC: 28-300%) compared to control. Although T3 (weekly nutrient supply) had lower shoot N, P, K + and Ca +2 concentrations than T1, this regimen increased the number of flower buds by 20% and flower longevity by 56% compared to T1. Overall, weekly nutrient application is effective at maintaining flower quality and yield in the 'Fangio' lily, and compares favourably with programs in which fertigation is more frequent and the level of total applied nutrients is higher.

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Section: Flower Qualitymentioning

confidence: 99%

Increasing nutrient levels promote growth and flower quality in lilies grown under soilless culture

Al-Ajlouni¹,

Ayad²,

Othman³

2017

Hortic. Sci.

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Hormonal changes during flower development in floral tissues of Lilium

Arrom

Munné‐Bosch

2012

Planta

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Much effort has been focussed on better understanding the key signals that modulate floral senescence. Although ethylene is one of the most important regulators of floral senescence in several species, Lilium flowers show low sensitivity to ethylene; thus their senescence may be regulated by other hormones. In this study we have examined how (1) endogenous levels of hormones in various floral tissues (outer and inner tepals, androecium and gynoecium) vary throughout flower development, (2) endogenous levels of hormones in such tissues change in cut versus intact flowers at anthesis, and (3) spray applications of abscisic acid and pyrabactin alter flower longevity. Results show that floral tissues behave differently in their hormonal changes during flower development. Cytokinin and auxin levels mostly increased in tepals prior to anthesis and decreased later during senescence. In contrast, levels of abscisic acid increased during senescence, but only in outer tepals and the gynoecium, and during the latest stages. In addition, cut flowers at anthesis differed from intact flowers in the levels of abscisic acid and auxins in outer tepals, salicylic acid in inner tepals, cytokinins, gibberellins and jasmonic acid in the androecium, and abscisic acid and salicylic acid in the gynoecium, thus showing a clear differential response between floral tissues. Furthermore, spray applications of abscisic acid and pyrabactin in combination accelerated the latest stages of tepal senescence, yet only when flower senescence was delayed with Promalin. It is concluded that (1) floral tissues differentially respond in their endogenous variations of hormones during flower development, (2) cut flowers have drastic changes in the hormonal balance not only of outer and inner tepals but also of androecium and gynoecium, and (3) abscisic acid may accelerate the progression of tepal senescence in Lilium.

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Sucrose accelerates flower opening and delays senescence through a hormonal effect in cut lily flowers

Arrom

Munné‐Bosch

2012

Plant Science

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Longevity and Ethylene Production During Development Stages of Two Cultivars of Lilium Flowers Ageing on Plant or in Vase

Cited by 6 publications

References 0 publications

Increasing nutrient levels promote growth and flower quality in lilies grown under soilless culture

Increasing nutrient levels promote growth and flower quality in lilies grown under soilless culture

Hormonal changes during flower development in floral tissues of Lilium

Sucrose accelerates flower opening and delays senescence through a hormonal effect in cut lily flowers

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