Improved seed propagation methods of Bulbine latifolia var. latifolia

J. Malele, R. Kleynhans, B. Matsiliza-Mlathi
Bulbine latifolia var. latifolia is endemic to South Africa and belongs to the Xanthorrhoeaceae family. The leaf sap and root decoction of the plant is used to treat various ailments. The plant was identified for commercial production but information on propagation and cultivation is very limited. In order to establish a seed production system, the breeding system and effect of temperature on seed germination were investigated. A pairwise design with 16 open inflorescences and 16 bagged inflorescences were paired to investigate the breeding system of B. latifolia var. latifolia. To determine the effect of temperature, seeds were sown in Petri dishes lined with double moist filter papers and placed in growth chambers for germination under five different temperatures (10, 15, 20, 25 and 30°C) for a period of 30 days. The germination trial was conducted as a 5×5 Latin square. ANOVA was performed to separate treatment means. No significant differences were observed on the number of flowers produced between open and bagged pollinated inflorescences. However, open pollinated inflorescences produced significantly more fruits, better fruit set, more seeds and better seed set than closed pollinated inflorescences, indicating a cross pollination breeding system. Temperature had a significant effect on the seed germination of B. latifolia var. latifolia with 20°C resulting in the highest final germination percentage of 89% as well as a faster mean germination time.
Malele, J., Kleynhans, R. and Matsiliza-Mlathi, B. (2018). Improved seed propagation methods of Bulbine latifolia var. latifolia. Acta Hortic. 1204, 93-100
DOI: 10.17660/ActaHortic.2018.1204.12
Bulbine latifolia var. latifolia, pollination, germination

Acta Horticulturae