Vacuum infiltration of gibberellic acid stimulates germination of dormant black walnut seeds

Black walnut (Juglans nigra L.) seed normally requires cold stratification to overcome dormancy. In 2 experiments, dormant, unstratified seeds were treated with gibberellic acid (GA3) in attempts to overcome dormancy. To facilitate uptake of treatment solutions, seeds were scarified by making 2 smal...

Full description

Saved in:
Bibliographic Details
Published in:Journal of environmental horticulture 1985-12, Vol.3 (4), p.172-175
Main Authors: Dorn, C.M, Mudge, K.W
Format: Article
Language:English
Subjects:
ACIDO GIBERELICO
DORMANCE
DORMANCY
ESCARIFICACION
ESTRATIFICACION
GERMINACION
GERMINATION
GIBBERELLINE
GRAINE
JUGLANS NIGRA
LATENCIA
SCARIFICATION
SEEDS
SEMILLA
STRATIFICATION
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Black walnut (Juglans nigra L.) seed normally requires cold stratification to overcome dormancy. In 2 experiments, dormant, unstratified seeds were treated with gibberellic acid (GA3) in attempts to overcome dormancy. To facilitate uptake of treatment solutions, seeds were scarified by making 2 small notches through the shell with a grinding wheel. Treatment solutions of 0, 50, 150, or 250 mg/l (ppm) GA3 were applied either by soaking seeds for 24 hours or by vacuum infiltration (VI) for 30 minutes. VI GA3 stimulated germination in both experiments to a level equal to or greater than germination of seeds receiving cold-moist stratification for 45 days. A brief 15 day stratification period followed by GA3 was more effective than VI alone. Soaking in GA3 was effective in the first experiment but not the second. Germination rate and seedling height was increased by GA3.
ISSN:0738-2898
2573-5586
DOI:10.24266/0738-2898-3.4.172