Relationship Between the Fiorinia phoenicis Counts and Biochemical Traits and Nutritional Status of Certain Date Palm Cultivar leaflets | ||||
| Assiut Journal of Agricultural Sciences | ||||
| Article 10, Volume 56, Issue 3, July 2025, Page 114-137 PDF (1.01 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajas.2025.385460.1486 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Moustafa M.S. Bakry* 1; *; El-Nopy H. Salim2; Rania M. Taha3; Eman F.M. Tolba4 | ||||
| 1Scale Insects and Mealybugs Research Department, Plant Protection Research Institute, Agriculture Research Center, Dokki, 12619 Giza, Egypt | ||||
| 2Horticulture Department, Faculty of Agriculture and Natural Resources, Aswan University | ||||
| 3Botany and Microbiology Department, Faculty of Science, Minia University, Minia, Egypt. | ||||
| 4Plant Protection Department, Faculty of Agriculture, New Valley University, New Valley, Egypt. | ||||
| Abstract | ||||
| The investigation assessed the relationships between the biochemical characteristics and nutritional status of six date palm cultivars and the damage rates caused by Fiorinia phoenicis (Hemiptera: Diaspididae). F. phoenicis populations were present on all date palm cultivars throughout the year. Comparing the leaflets of the 'Bartamoda' cultivar with other tested date palm cultivars, the 'Bartamoda' cultivar recorded the highest pest infestation rate and the highest estimates of leaflet-specific weight, moisture content, one-hour drying weight, fat content, crude protein, carbohydrates, and feed quality index. In contrast to other tested varieties, date palm leaflets of the “Balady” (local) cultivar recorded the highest scores in the following assessments: leaflet area, specific leaflet area, chlorophyll a, b, carotenoids, dry matter, moisture loss, wax content, tannins, and phenols. Using Euclidean distance and the unweighted paired group technique with arithmetic average (UPGMA), a heat map and hierarchical clustering of 19 evaluated features on six date palm cultivars over two-year averages were carried out. With the use of the similarity coefficient matrix data, a dendrogram was created. Date palm cultivars were divided into two major groups using the heat map. Three date palm cultivars, one strongly linked and the other weakly associated, were grouped in each group. For every index system, each group was further subdivided into subgroups. In an unconventional integrated pest management method for F. phoenicis control, knowing the amounts of wax, tannins, and phenols in date palm cultivars' leaves may assist in forecasting the date palms' resistance to F. phoenicis populations. | ||||
| Keywords | ||||
| Biochemical traits; Date palm cultivars; Fiorinia phoenicis; Nutritional status | ||||
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