ISHS Acta Horticulturae 818: I International Symposium on Pomegranate and Minor Mediterranean Fruits
EFFECTS OF KAOLIN AND SHADING TREATMENTS ON SUNBURN ON FRUIT OF HICAZNAR CULTIVAR OF POMEGRANATE (PUNICA GRANATUM L. CV. HICAZNAR) |
| Authors: | K. Yazici, L. Kaynak |
| Keywords: | fruit weight, fruit size, grain yield, peel thickness, acidity, peel colors, dry matter |
| Abstract:
This study was carried out in order to determine effects of kaolin and shading treatments on sunburn in fruits of Hicaznar cultivar of pomegranate (Punica granatum L. cv. Hicaznar). Trees selected for shading were first covered with green covering material in the area, providing by 35% shading on July 30. Then, effects of kaolin applications on sunburn were determined by applying 3% of kaolin with four applications at different periods that have been initiated at different dates within weekly intervals in the shaded and non-shaded areas. [Period I (KI : July 30, August 6, August 13 and August 20), Period II (KII: August 6, August 13, August 20 and August 27), Period III (KIII: August 13, August 20, August 27 and September 10)]. Furthermore, effects of different treatments on the quality of fruit were also determined. This study was conducted on Hicaznar, which is the most important pomegranate fruit cultivar produced and exported from this region, within 2003 and 2004 in Batı Akdeniz Agricultural Research Institute. Applications of kaolin were the best method to prevent sunburn in fruits of the Hicaznar pomegranate cultivar and increased soluble dry matter content and the red color of fruits. Among kaolin applications, KI was the most effective application for reducing sunburn in pomegranate fruit. Shading treatments decreased sunburn damage on pomegranate fruits compared to controls. However, it increased fruit cracking when the humidity was high. In addition shading plus kaolin applications was more effective for decreasing sunburn compared to shading treatment alone. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
