Abstract
A plant regeneration protocol has been successfully developed to mass propagate daylilies. Experiments were conducted to determine source (BA, KN, and ZT) and concentration (0, 1.0, 2.0, and 3.0 mg/L) of cytokinins and sugars (glucose, surcose, and maltose) to be used in the medium. Studies were also conducted to determine the influence of flower bud size (5, 10, 15, and 20 mm) as explant source. Based on results from these studies a protocol for propagating daylilies was developed. The procedure involved using filament explants from daylily flower buds ranging in sizes from 5 to 10 mm. The filaments when cultured on MS+BAP (3.0 mg/L)+ IAA (0.5 mg/L) medium,formed globular somatic embryos in 4 weeks. Complete plants were regenerated within a period of 6 to 7 months. Upon acclimatization, 100% of the tissue culture generated raised plants survived under greenhouse conditions.
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