The morphological and physiological response of Lachenalia to supplemental irradiation

Anna Kapczyńska , Bożena Stodolak


The aim of this study was to examine the effects of supplemental irradiation, provided by high-pressure sodium lamps during cultivation, on growth, flowering, and physiological responses of six Lachenalia cultivars: ‘Rainbow Bells’, ‘Aqua Lady’, ‘Josephine’, ‘Riana’, ‘Radient’, and ‘Cherise’. Depending on light conditions and cultivar, lachenalia bulbs flowered from February 20th to March 24th. Additional irradiation accelerated flowering of ‘Rainbow Bells’, ‘Aqua Lady’, ‘Josephine’, and ‘Riana’ plants by 5–19 days depending on the cultivar. Compared with controls, the irradiated bulbs had a higher floral ratio and produced shorter inflorescence stems and inflorescences, a larger number of single florets, and thicker inflorescence stems (except for ‘Rainbow Bells’). The use of lamps resulted in shorter leaves with a higher chlorophyll a content in ‘Aqua Lady’, ‘Riana’, ‘Radient’, and ‘Cherise’ compared to control plants. The shortest leaves were reported in the ‘Josephine’ cultivar, and they were on average two times shorter than in the other cultivars. Bulbs and leaves of all cultivars grown under supplemental irradiation were characterized by higher dry weight than control plants. Dry weight content was highest in the bulbs and in the roots, and it was lowest in lachenalia leaves and shoots. Thus, supplemental irradiation from high-pressure sodium lamps positively affected morphological and physiological plant quality, although differences in the evaluated features largely depended on cultivar.
Author Anna Kapczyńska (FoBaH / DoDP)
Anna Kapczyńska,,
- Department of Decorative Plants
, Bożena Stodolak (FoFT / DoFB)
Bożena Stodolak,,
- Department of Food Biotechnology
Journal seriesHorticulture Environment and Biotechnology, ISSN 2211-3452, e-ISSN 2211-3460, (N/A 40 pkt)
Issue year2019
Publication size in sheets0.5
Keywords in EnglishArtificial light, Asparagaceae, Cape hyacinth, Flowering, Ornamental geophyte, Photosynthetic pigments
ASJC Classification1108 Horticulture; 1110 Plant Science; 1305 Biotechnology
Languageen angielski
LicenseJournal (articles only); author's original; Uznanie Autorstwa (CC-BY); after publication
The morphological and physiological response of Lachenalia to supplemental irradiation 1,32 MB
Score (nominal)40
Score sourcejournalList
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.889; WoS Impact Factor: 2018 = 1.531 (2) - 2018=1.283 (5)
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FinansowanieThis work was supported by Polish Ministry of Science and Higher Education in Poland (DS 3500/KRO/2012-2015).
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