PT  - JOURNAL ARTICLE
AU  - Robert J. Weaver
AU  - Robert M. Pool
TI  - Induction of Berry Abscission in <em>Vitis Vinifera</em> by Morphactins
AID  - 10.5344/ajev.1968.19.2.121
DP  - 1968 Jan 01
TA  - American Journal of Enology and Viticulture
PG  - 121--124
VI  - 19
IP  - 2
4099  - http://www.ajevonline.org/content/19/2/121.short
4100  - http://www.ajevonline.org/content/19/2/121.full
SO  - Am J Enol Vitic.1968 Jan 01; 19
AB  - Two derivatives of fluorene-9-carboxylic acid, termed morphactins, were tested on both seeded Vitis vinifera `Muscat of Alexandria' and seedless `Thompson Seedless' and `Black Corinth' grapes. Berry abscission was induced when the compounds were applied at the fruit-set stage or two weeks later. When morphactins were applied near maturity, no berry drop occurred although the strength of berry attachment was reduced. An auxin (4-CPA) counteracted the morphactin response, indicating that it may involve auxin metabolism.