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Root tips of Hyoscyamus niger were cultivated on agar or in liquid medium, and patterns of elongation and branching were investigated. The elongation of roots compared to branching, particularly tertiary root branching, was more effective in liquid medium than on agar medium. The number (0.06 per...
Genetic variability for regeneration ability was evaluated by studying direct organogenesis from cotyledons of thirteen genotypes including three cytoplasmic male sterile, three maintenor, three restorer inbred lines, and four F1 hybrids obtained by crosses between some of these inbred lines. The...
Ten genotypes from Pisum sativum and Pisum arvense were screened for their regeneration abilities. Most of them were created through experimental mutagenesis from Bulgarian varieties and have various valuable agronomic traits. Embryonic axes from immature embryos were plated on modified Murashige...