Effect of Potassium Silicate and Chitosan Spraying on Fruiting of Thompson Seedless Grapevines | ||||
| Assiut Journal of Agricultural Sciences | ||||
| Article 18, Volume 56, Issue 2, April 2025, Page 263-277 PDF (499.44 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajas.2025.354790.1457 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Alaa A. B. Masoud  1; Omar A. Alsanosy2
| ||||
| 1Pomology Department, Faculty of Agriculture, Assiut University, Assiut, Egypt. | ||||
| 2Faculty of Industry and Energy, Thebes University of Technology, Luxor, Egypt. | ||||
| Abstract | ||||
| The present study was conducted on 20-year-old Thompson seedless grapevines (Vitis vinifera L.) in the two consecutive seasons of 2023 and 2024. The purpose of this study was to examine the effects of K-silicate and chitosan foliar sprays on vine yield of Thompson seedless grapevines. The experiment included 10 single or combination treatments with K-silicate and chitosan as foliar application in a randomized complete block design (RCBD) with three replicates. The effect on the yield of 'Thompson seedless' grapevine, assessed by percentage of berry set, number of bunches/vine, average bunch weight, yield/vine, average bunch length and width at different concentrations of potassium silicate and/or Chitosan foliar application compared to control treatment. Single applications of K-silicate or chitosan increased the physical quality of the berries and reduced the percentage of shoot formation, particularly at 0.1% and 0.2% compared to the control, with no significant difference between the two concentrations. Application of K-silicate and/or chitosan at different concentrations inhanced the average values of the chemical quality traits of the berries (TSS%, total acidity, TSS/acid ratio, juice% and total sugar) of the grapevine life cycle. Thompson seedless. | ||||
| Keywords | ||||
| Chitosan; Foliar application; Potassium Silicate; Grapevine; Thompson seedless | ||||
|
Statistics Article View: 78 PDF Download: 56 |
||||
