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Ioannis Tsirogiannis, Nikolaos Katsoulas, and Constantinos Kittas

stage. Gerbera plants, because of frequent removal of old or damaged leaves, exhibit a fluctuation of leaf area, something that implies extra difficulties when attempting to formulate any model for scheduling irrigation. An alternative, optimal

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Xiaohe Song and Zhanao Deng

Cultivated gerberas are diploids resulting from artificial crosses between Gerbera jamesonii and Gerbera viridifolia ( Hansen, 1999 ), both with 2n = 2x = 50 chromosomes. Because of their hybrid origin, cultivated gerberas have been given

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Fan Li, Shenchong Li, and Qinli Shan

Gerbera hybrida is one of the most important floricultural plants worldwide due to the high variation of flower and inflorescence colors, which make it rank fourth in cut flowers after rose, chrysanthemum, and tulip according to data from the

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Farzad Nazari and Mahmoud Koushesh Saba

Gerbera plant is from Asteraceae family and can be grown as a cut flower, pot flower, or garden plant ( Reinten et al., 2011 ). This cut flower ranks fourth after roses, chrysanthemum, and lily in the FloraHolland auction in 2014 ( Azadi et al

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James D. Spiers, Fred T. Davies Jr., Chuanjiu He, Carlos E. Bográn, Kevin M. Heinz, Terri W. Starman, and Amanda Chau

We gratefully appreciate the technical assistance of Alejandro Alarcon and Leslie Scheuring. We thank Knox Nursery, Inc. for donation of gerberas. We also thank Olympic Horticultural Products, Syngenta, FMC Corporation, and Dow AgroSciences for

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Dave Llewellyn, Katherine Schiestel, and Youbin Zheng

-round commodities, such as cut gerbera, to use SL to meet their crops’ economic minimum lighting requirements. Until recently, the only viable options for SL were high-intensity discharge (HID) systems such as HPS lamps. LED technology has improved significantly in

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Leah L. Granke, Layla E. Crawford, and Mary K. Hausbeck

Michigan ranks fifth in potted gerbera daisy ( Gerbera jamesonii H. Bolus) production after Texas, California, Illinois, and Florida and also produces a limited number of gerbera daisies for cut flowers. Potted gerbera production represents a $730

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Kenneth R. Tourjee, James Harding, and Thomas G. Byrne

Ligule color of a Gerbera jamesonii H. Bolus ex Hooker population was analyzed with a reflectance spectrophotometer having a spectral capability of 400 to 700 nm and a cv <3% for the variables hue, chroma, and value. The observations for each variable had a continuous distribution; these broad distributions are possibly bimodal. The repeatability of hue, chroma, and value, determined as the correlation between measurements made on plants in December and those made on the same plants the following April, are 0.83, 0.82, and 0.86, respectively. The phenotypic correlations between value and chroma, value and hue, and chroma and hue are -0.35, 0.73, and 0.11, respectively. Some possible biochemical implications concerning the interaction of anthocyanin and carotenoid pigments are discussed. Reflectance spectroscopy and Commission International de l'Eclairage 1976 (L* a* b*) color space notation provide an objective and precise method for incorporating color into a recurrent selection program.

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Raquel Valdés, Julián Miralles, Jesús Ochoa, Sebastián Bañón, and María Jesús Sánchez-Blanco

may influence the retention and diffusion of moisture in the substrate and, as a consequence, the distribution of salts and roots. To verify this, coconut fiber-grown gerbera were irrigated with one, two, and four emitters per pot under two levels of

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Christian Andreasen, Andrius Hansen Kemezys, and Renate Müller

Gerbera species are ornamental plants of considerable economic importance produced in many parts of the world. The genus belongs to the sunflower family (Asteraceae) and is widely used as a potted ornamental plant as cut a flower and less often as a