The Effect of Single and Repeated Gibberellic Acid Treatment on Internode Number and Length in Dwarf Peas |
| |
Authors: | STEVEN SPIKER AMINA MASHKAS MUAZZAZ YUNIS |
| |
Affiliation: | Botany Department, University of Georgia, Athens, Georgia 30602, U.S.A.;Biology Department, Beirut University College, Beirut, Lebanon |
| |
Abstract: | In long-term experiments comparing the results of single and repeated treatment of dwarf peas with gibberellic acid, both once-treated and weekly-treated plants formed more internodes than control plants. The initial high rate of internode formation in the once-treated peas dropped rapidly reaching that of control plants three weeks after treatment. Weekly-treated plants maintained a higher rate of internode formation. The ratio of internode lengths of once-treated plants to control plants was high (over 3) for the internodes which were elongating during or shortly after the single treatment but dropped rapidly and approached unity in later-developed internodes. The ratio of internode lengths of weekly-treated plants to control plants continued to be high throughout the experiment. |
| |
Keywords: | |
|
|