SUSCEPTIBILITY OF FIVE MANGO CULTIVARS TO ICERYA SEYCHELLARUM (WESTWOOD) (HOMOPTERA: MARGARODIDAE)IN RELATION TO LEAF QUALITY, NUTRIENTS AND INHIBITORS
SALEM, M., EL-SAID, M., ABD EL-GHANY, A., EL-RAHMAN, M. (2006). SUSCEPTIBILITY OF FIVE MANGO CULTIVARS TO ICERYA SEYCHELLARUM (WESTWOOD) (HOMOPTERA: MARGARODIDAE)IN RELATION TO LEAF QUALITY, NUTRIENTS AND INHIBITORS. EKB Journal Management System, 84(3), 697-711. doi: 10.21608/ejar.2006.231211
MOHAMED E. SALEM; MAHA I. EL-SAID; AHMED M. ABD EL-GHANY; MONZER M. EL-RAHMAN. "SUSCEPTIBILITY OF FIVE MANGO CULTIVARS TO ICERYA SEYCHELLARUM (WESTWOOD) (HOMOPTERA: MARGARODIDAE)IN RELATION TO LEAF QUALITY, NUTRIENTS AND INHIBITORS". EKB Journal Management System, 84, 3, 2006, 697-711. doi: 10.21608/ejar.2006.231211
SALEM, M., EL-SAID, M., ABD EL-GHANY, A., EL-RAHMAN, M. (2006). 'SUSCEPTIBILITY OF FIVE MANGO CULTIVARS TO ICERYA SEYCHELLARUM (WESTWOOD) (HOMOPTERA: MARGARODIDAE)IN RELATION TO LEAF QUALITY, NUTRIENTS AND INHIBITORS', EKB Journal Management System, 84(3), pp. 697-711. doi: 10.21608/ejar.2006.231211
SALEM, M., EL-SAID, M., ABD EL-GHANY, A., EL-RAHMAN, M. SUSCEPTIBILITY OF FIVE MANGO CULTIVARS TO ICERYA SEYCHELLARUM (WESTWOOD) (HOMOPTERA: MARGARODIDAE)IN RELATION TO LEAF QUALITY, NUTRIENTS AND INHIBITORS. EKB Journal Management System, 2006; 84(3): 697-711. doi: 10.21608/ejar.2006.231211

SUSCEPTIBILITY OF FIVE MANGO CULTIVARS TO ICERYA SEYCHELLARUM (WESTWOOD) (HOMOPTERA: MARGARODIDAE)IN RELATION TO LEAF QUALITY, NUTRIENTS AND INHIBITORS

Egyptian Journal of Agricultural Research
Article 5, Volume 84, Issue 3, September 2006, Page 697-711  XML PDF (3.14 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2006.231211
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Authors
MOHAMED E. SALEM1; MAHA I. EL-SAID2; AHMED M. ABD EL-GHANY2; MONZER M. EL-RAHMAN2
1Faculty of Agriculture, Cairo University, Giza, Egypt
2Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
Abstract
The susceptibility of five mango cultivars to the sap sucking insect, Icerya seychellarum was screened and the relation between their susceptibility differences and both leaf nutrients and inhibitors was studied. For this purpose chemical analysis of the leaves of Sultani, Baladi, Hendi, Ewaisi and Alphonso mango cultivars were conducted to estimate their contents of the two main nutritional substances, carbohydrates and proteins, and also their content of two nutrition inhibitors (phenolics and tannins). Based on the obtained results, food quality index (FQI) for each cultivar was calculated. It was found that both the level of susceptibility of mango cvs to I. seychellarum and the values of leaf FQI could be arranged in descending order as follows: Sultani (highly susceptible and had the highest FQI) > Baladi > Hendi = Ewaisi. The results revealed that levels of susceptibility of mango cultivars to I. seychellarum depend on the combined action of leaf nutrients, inhibitors and secondary metabolites which determined the food quality of their leaves. The relative role of these factors may differ among different cultivars.
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