The Hormone Content of Ripening Grape Berries and the Effects of Growth Substance Treatments
Open Access
- 1 April 1973
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 51 (4), 629-634
- https://doi.org/10.1104/pp.51.4.629
Abstract
Berries on field-grown Vitis vinifera cv. Doradillo were treated at different times during stage II with benzothiazole-2-oxyacetic acid or 2-chloroethylphosphonic acid, and measurements were made of their growth and hormone content. The concentration of ethylene was low during stage II and declined as berries ripened. Both 2-chloroethylphosphonic acid and benzothiazole-2-oxyacetic acid caused increases in ethylene concentration, yet they had varying effects on ripening: the former applied at the start of stage II and the latter applied 1 week before the end of stage II delayed ripening, while 2-chloroethylphosphonic acid applied at the end of stage II hastened ripening.Keywords
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