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THE ORIGIN AND DEVELOPMENT OF INDUCED BRANCHES IN HELIANTHUS
Author(s) -
Marr Currie,
Blaser H. Weston
Publication year - 1967
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1967.tb10670.x
Subject(s) - meristem , biology , axillary bud , helianthus annuus , botany , shoot , apical dominance , bud , vascular bundle , lateral shoot , sunflower , horticulture , tissue culture , genetics , in vitro
The development of buds and their vascular connections are described for Helianthus annuus and H. bolanderi. Bud meristems of H. annuus usually become isolated by parenchymatization of the bud traces in the cortical zone. If the buds are induced to grow as a result of decapitation of the terminal meristem, a continuous range between typical primary connections and pseudo‐adventitious connections are made between the main axis and the lateral buds. Considerable growth of the branches occurs within 48 hours after decapitation. Axillary buds of H. bolanderi grow continuously, and both the meristem and vascular system of the buds are derived directly from the apical meristem of the shoots.