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TUMORS OF INTERSPECIFIC NICOTIANA HYBRIDS. I. EFFECT OF TEMPERATURE AND PHOTOPERIOD UPON FLOWERING AND TUMOR FORMATION
Author(s) -
Schaeffer G. W.,
Burk L. G.,
Tso T. C.
Publication year - 1966
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.1537-2197.1966.tb06852.x
Subject(s) - nicotiana , biology , hybrid , photoperiodism , interspecific hybrids , botany , interspecific competition , interspecific hybridization , solanaceae , genetics , gene
To establish the flowering and tumor‐forming response of the hybrid Nicotiana suaveolens Lehm. × Nicotiana langsdorffii Weinm., it was grown with the parental species under two temperatures and night‐length photoperiods. All plants flowered earlier with a 2‐hr night interruption. The floral response of N. suaveolens was more sensitive to temperature than that of N. langsdorffii. The response of the hybrid was similar to N. suaveolens in the warm temperatures (24–27 C) and similar to N. langsdorffii in the cool (15–21 C). Tumors on roots of the hybrids were much more pronounced on plants grown in higher temperatures.