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INTERACTION OF TEMPERATURE AND GIBBERELLIN ON POTATO SEED GERMINATION
Author(s) -
Lam ShueLock
Publication year - 1968
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.1537-2197.1968.tb06961.x
Subject(s) - germination , gibberellin , gibberellic acid , biology , horticulture , agronomy , botany
Recently harvested true seed of potato frequently requires several months for complete germination. Gibberellic acid (GA 3 ) has a pronounced effect on seed germination, but this effect is influenced by temperature. As the temperature approaches 80 F, germination decreases considerably irrespective of GA 3 treatment. Potato seed germination is also favored by low temperature, but constant low temperature alone does not insure complete germination of dormant seeds. More than 95% germination of dormant seeds can be obtained within a week either by application of GA 3 at low temperature or by diurnal alternation of temperature. A possible mechanism for control of seed germination is discussed.