The Development of Flowering Assays for Cold-Treated Tulip Bulbs

Selection and presentation of tulip (<i>Tulipa</i> L.) species and cultivars to the Lithuanian Plant Genetic Resources

“…3). 6. Cultivars with a high reproductive capacity: 3 'Lustige Witwe' (very productive, forcible cultivar), 4 ' Apeldoorn' , 7 'Fringed Apeldorn' (hardy and very reproductive).…”

“…The creation of all-year-round bulbous flower forcing technologies predetermined the mass expansion of this culture in the 20th century [6][7][8][9][10][11][12][13][14][15][16][17][18][19]. The vegetative propagation of tulips is effective, but creation of new tulip cultivars is especially time-consuming because tulip seedlings begin to blossom only after seven years.…”

Dormancy Behaviors and Underlying Regulatory Mechanisms: From Perspective of Pathways to Epigenetic Regulation

“…The apical meristem in a mature tulip bulb is converted to a floral bud in summer, and high temperatures of summer immediately drive the formed floral buds into dormancy while the lateral buds remain vegetative (Boonekamp et al 1990;Saniewski et al 2000). In fall and winter, chilling temperatures release floral buds from dormancy while inducing a concomitant transformation of vegetative buds into dormant bulbs (Okubo 2000).…”

Research Approaches for Determining Cold Requirements for Forcing and Flowering of Geophytes

“…Biochemical markers. Studies are being conducted to provide accurate indications of the end of the cold treatment by biochemical means (Boonekamp et al, 1990). The levels of various carbohydrates and endogenous plant growth regulators have been studied in several species, including Freesia ecklon ex Klatt.…”