Abstract
In present research, the effects of light quality on micropropagation of gerbera were investigated. The MS medium containing 1 mg L -1 BAP and 0.1 mg L -1 NAA was used in proliferation stage and the MS medium containing 0.05 mg L -1 IBA was used in rooting stage of the study. Cultured plants were grown in cabinets illuminated with red, blue, daylight LED lamps separately and their various mixtures. Cool white fluorescent lamp was used as control treatment in the study. The highest ratio of explant with new shoots, the number of shoots per explant and shoot length values were obtained from cool white fluorescent lamps (90%, 5.35 shoots and 2.63 cm, respectivey), 100% blue LED lamp (95%, 5.24 shoots and 2.40 cm, respectively), 100% cool white LED lamp (90%, 4.18 shoots and 2.21 cm, respectively) and 70% red + 30% blue LED lamp treatments (80%, 4.14 shoots and 2.21cm, respectively) in the proliferation stage of the study. These treatments also yielded the highest values in terms of plant fresh and dry weight. While the highest rooting percentage (75%) was obtained from 100% cool white LED light treatment, the differences between the treatments except for 100% red LED light were not significant. Rooted plants were successfully acclimatized to outdoor conditions with 84% survival rate in peat + perlite mixture (2:1).
Highlights
Gerbera, which has a significant share in cut flower production of Turkey, is not propagated with seeds due to its heterozygous structure [1]
Wang et al [8] reported that red light increased the shoot length more than blue and cool white light in gerbera
It was stated that the red light used together with the blue light was more effective on plant development and photosynthesis red light used alone was not effective [14, 15]
Summary
Gerbera, which has a significant share in cut flower production of Turkey, is not propagated with seeds due to its heterozygous structure [1]. Gök et al / Micropropagation of Gerbera (Gerbera jamesonii Bolus) under Different Color of Light‐Emitting Diodes technique With these methods, identical, strong and disease‐free plants can be reproduced any time of the year [2]. It was stated that the red light used together with the blue light was more effective on plant development and photosynthesis red light used alone was not effective [14, 15] It was not encountered a detailed study about in vitro using of LED lamps produced day light. This study was carried out to determine the effects of different light colors on micropropagation of gerbera cultivar ‘Rosalin’ For this purpose, the effects of blue, red, day light colors and their various mixtures on in vitro proliferation and rooting of gerbera were investigated
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