ISHS Acta Horticulturae 349: V International Symposium on Orchard and Plantation Systems
PREVENTION OF DAMAGE CAUSED TO FRUIT TREES BY INADEQUATE SOIL AERATION |
| Authors: | A. Gur, J. Moyal, A. Gabai |
| Abstract:
The application of tri-K-citrate to periodically flooded one year-old ungrafted apple and peach plants improved their elongatiom and fresh weight gain compared to untreated flooded plants and 8-hydroxy-quinoline hemisulfate (HQS) enhanced, in most experiments, the action of citrate. In apple and peach orchards in poorly aerated clay soil the application of tri-K-citrate in spring increased yields, the average fruit weight and the cross sectional trunk area. Application of citrate to flooded apple plants reduced the activity of d-fructose-6-phosphate-1-phosphotransferase (PFK), the pyruvic acid and the ethanol content of the roots. The ethanol content of apple and peach shoot bark in flooded plants was also reduced by citrate, as well as the ethylene content of the internal root atmosphere in flooded peach plants. | |
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