Gibberellin research with citrus
AuthorsC. W. Coggins
H. Z. Hield
R. M. Burns
I. L. Eaks
L. N. Lewis
Authors AffiliationsC. W. Coggins, Jr., is Associate Plant Physiologist, Department of Horticulture, University of California, Riverside; H. Z. Hield is Specialist, Department of Horticulture, University of California, Riverside; R. M. Burns is Farm Advisor, Ventura County; I. L. Eaks is Plant Physiologist, Department of Biochemistry; L. N. Lewis is Associate Horticulturist, Department of Horticulture, U. C., Riverside. Laboratory Technicians J. C. F. Knapp and D. E. Trueblood, Department of Horticulture, assisted with these studies at Riverside.
Hilgardia 20(7):12-13. DOI:10.3733/ca.v020n07p12. July 1966.
Gibberellic acid is registered and recommended in California for certain uses (particularly in delaying rind and fruit maturity) on navel oranges and lemons. Favorable responses have also been obtained on limes and mandarins, but our present knowledge is insufficient to warrant registration or recommendation for use on these fruits. So far, we do not know how to take advantage of the delayed softening and aging of Valencia orange and grapefruit rind tissue without obtaining considerable regreening. The influence of GA3 on retention of young fruit has potential value, but no practical method has yet been devised to avoid phytotoxic responses.
Also in this issue:Grape leaf folder control with
Insecticides and beneficial insects in cotton fields
Water base paints for sunburn protection of young fruit trees
Labor carrier experiments in row crops
Celery growth and nutrient absorption studies
Manures are good sources of phosphorus
Chemical treatment of grape stakes may weaken young vines
Multiple viruses of tomato inducing fruit malformation and leaf symptoms
Symptoms of the celery-calico virus on tomato plants