Performance of gerbera (Gerbera jamesonii) cultivars under fan and pad cooled greenhouse environments.
Indian Institute of Horticultural Research, Bangalore, Karnataka - 560 089, India.
DOI: https://doi.org/10.37855/jah.2002.v04i01.19
Key words: air temperature, cooling systems, crop quality, cultivars, cut flowers, flowering, flowering date, flowers, greenhouse crops, leaves, ornamental herbaceous plants, ornamental plants, plant height, protected cultivation, relative humidity, stems, suckers,
Abstract: The performance of 9 exotic cultivars of gerbera (G. jamesonii) (Diablo, Lyonella, Ornella, Sunset, Tara, Thalassa and Tiramisu, Twiggy and Whitsun) was studied under fan and pad cooled greenhouse environments at the Indian Institute of Horticulture Research, Bangalore, Karnataka, India from July 1998 to June 1999. The greatest plant height (48.83 cm), and number of suckers (5.16) and leaves (46.27) per plant were obtained with Tiramisu, Lyonella and Ornella, respectively, while the lowest values of the aforementioned parameters were recorded for Whitsun (47.88 cm), Sunset (3.82) and Tiramisu (26.74), respectively. Flowering was earliest (47.88 and 57.47 days for 50 and 100% flowering, respectively) in Whitsun and latest (83.10 and 88.30 days) in Tiramisu. The greatest diameter of flower (10.70 cm) and length of flower stalk (58.27 cm) were recorded for Tiramisu and Lyonella, respectively. The thickest (0.70 cm diameter) and heaviest (22.20 g) flower stalks were observed in Twiggy, whereas the thinnest (0.60
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