Specialty Cut Flowers

Armitage, Allan M.

doi:10.1016/b978-0-12-437651-9.50012-9

Cited by 48 publications

(93 citation statements)

References 12 publications

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“…Irrigation with Cl-dominated waters (solution ICV) with EC = 20 dS m −1 caused necrosis of the lower leaves, probably due to Cl-toxicity. Leaf damage should not affect market quality as most of the sunflower foliage is ordinarily removed at harvest (Armitage, 1993).…”

Section: Discussionmentioning

confidence: 99%

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Response of Ornamental Sunflower Cultivars ‘Sunbeam’ and ‘Moonbright’ to Irrigation With Saline Wastewaters

Grieve

Poss

2010

Journal of Plant Nutrition

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2 To explore the possibility that saline wastewaters may be used to grow commercially acceptable floriculture crops, a study was initiated to determine the effects of salinity on two pollen-free cultivars of ornamental sunflower (Helianthus annuus L.). 'Moonbright' and 'Sunbeam' were grown in greenhouse sand cultures irrigated with waters prepared to simulate wastewaters commonly present in two inland valley regions of California: 1) San Joaquin Valley (SJV) where saline-sodic drainage waters are dominated by sodium (Na + ) and sulfate (SO 2− 4 ) and 2) Coachella Valley (CV) where major ions in tailwaters are Na, predominating in that order. Ten-day-old seedlings were subjected to five salinity treatments of each water composition, each replicated three times. Electrical conductivities (EC) of the irrigation waters were 2.5, 5, 10, 15, and 20 dS·m −1 . Flowering stems were harvested when about 75% of the ray flowers were nearly horizontal. Stem length and fresh weight, flower and stem diameter were measured. Mineral ion concentrations in upper and lower stems, upper and lower leaves were determined. Sodium was excluded from the young tissues in the upper portions of the shoot and retained in the basal stem tissue. Inasmuch as sunflower is also a strong potassium (K)-accumulator, K + /Na + selectivity coefficients were unusually high in the younger shoot organs. Despite a fivefold increase in substrate Ca 2+ in both solutions, shoot-Ca decreased as salinity increased and this cation was retained in the older leaves. A few of the lower leaves of plants irrigated with ICV waters at EC = 10 dS·m −1 and higher, exhibited necrotic margins which were undoubtedly caused by high concentrations of Cl − in the tissues. Flowering stems produced in all treatments met florist quality standards in terms of diameters for stems (0.5 to 1.5 cm) and blooms (8 to 15 cm). Across treatments, stem lengths ranged from 60 to 175 cm. Both ornamental sunflower cultivars proved to be good candidates for production of marketable flowering stems using moderately saline wastewaters.

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Section: Discussionmentioning

confidence: 99%

“…Planting density was higher than recommended (Armitage, 1993) which reduced branching; all plants were single-stemmed. Stem length of both sunflower cultivars decreased consistently and significantly as salinity increased from 2.5 to 20 dS·m −1 regardless of the composition of the irrigation water applied (Figures 1 and 2).…”

Section: Growthmentioning

confidence: 97%

Response of Ornamental Sunflower Cultivars ‘Sunbeam’ and ‘Moonbright’ to Irrigation With Saline Wastewaters

Grieve

Poss

2010

Journal of Plant Nutrition

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“…El tratamiento con STS se realiza por medio de soluciones de hidratación "tratamiento de carga" a dosis de 1 µM de Ag 2+ por tallo (Newman et al, 1998), utilizando compuestos a base de STS, como Chrysal AVB, Floríssima 125 y Florissant 100 (López et al, 2008). Es importante tener en cuenta que la eficiencia de los tratamientos a base de STS varía en función de la sensibilidad de las distintas especies al etileno exógeno y en un buen número de ellas, el tratamiento de carga no se justifica (Armitage y Laushman, 2003). La utilización de STS se ha restringido en algunos países para plantas en macetas, debido a los efectos tóxicos en el ambiente y contaminación de aguas subterrá-neas (Serek y Reid, 1993), además en productos alimenticios, el STS es totalmente prohibido (Chen et al, 2008).…”

Section: Sales De Plataunclassified

Etileno y retardantes de la maduración en la poscosecha de productos agrícolas. Una revisión

Balaguera-López

Salamanca-Gutiérrez

García

et al. 2015

Rev. Colomb. Cienc. Hortic.

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Plantulas de tomate.Foto: Álvarez-Herrera.Etileno y retardantes de la maduración en la poscosecha de productos agrícolas. Una revisión Ethylene and maturation retardants in the postharvest of perishable horticultural products. A review RESUMENEl etileno es la hormona vegetal responsable de regular diferentes procesos durante la maduración de productos agrícolas, llevando a procesos de senescencia y finalmente, pérdida de valor nutricional y comercial. A través del tiempo se han desarrollado diversos retardantes químicos de la maduración para disminuir los efectos negativos del etileno en la poscosecha, los cuales actúan en las etapas de biosíntesis (aminoetoxi-vinil-glicina (AVG) y ácido aminooxiacético (AOA), acción/señalización (1-MCP)) y sales de plata como nitrato y tiosulfato de plata (STS) y compuestos que oxidan al etileno de la atmósfera (permanganato de potasio (KMnO 4 )). En esta revisión se describen las características principales de cada uno de los retardantes de madurez mencionados, además, se analiza con estudios científicos, el efecto que tienen estos retardantes sobre los cambios moleculares, fisiológicos, químicos y físicos durante la poscosecha de frutos, hortalizas y especies ornamentales.

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“…The fresh leaves of the plant have a good taste and are aromatic, and so it is used in traditional cooking (Khoshbakht et al 2006;Daneshfar et al 2014). Species of Eryngium are propagated by seed production, transplanted plantlets or by cuttings (Armitage 1993). The growth rate of Eryngium is very slow, so their ability to respond to habitat disruption is weak (Everett 1960).…”

Section: Introductionmentioning

confidence: 99%

Effect of some environmental factors on seed germination of Eryngium caeruleum M. Bieb. populations

Rezvani

Zaefarian

2017

Acta Bot. Bras.

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Th e eff ects of alternating and constant temperatures and light regimes, osmotic and salt stress and pH were tested on seed germination in four populations of Eryngium caeruleum. Laboratory experiments revealed that the four populations exhibited diff erent responses to alternating temperature and light conditions. Alternating temperature and photoperiod had a greater positive eff ect on seed germination compared to complete darkness. Th e optimal constant temperature within 10 ºC to 15 ºC for seed germination of each population was determined in a light/ dark photoperiod. Seed germination severely decreased under water stress and was completely inhibited at -0.8 MPa osmotic potential. Saline stress sharply decreased germination percentage. Germination was restricted by pH lower and higher than 5 and 8, respectively. Th e information obtained from this study helps to fi ll the gap of knowledge about seed germination requirements of E. caeruleum and enhance our understanding of this species distribution and its potential to develop in stressful and/or new habitats.

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Specialty Cut Flowers

Cited by 48 publications

References 12 publications

Response of Ornamental Sunflower Cultivars ‘Sunbeam’ and ‘Moonbright’ to Irrigation With Saline Wastewaters

Response of Ornamental Sunflower Cultivars ‘Sunbeam’ and ‘Moonbright’ to Irrigation With Saline Wastewaters

Etileno y retardantes de la maduración en la poscosecha de productos agrícolas. Una revisión

Effect of some environmental factors on seed germination of Eryngium caeruleum M. Bieb. populations

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