Effect of Tylenchulus semipenetrans inoculum levels on itsdevelopment, reproduction potential, and damage to infected-Volkamariana seedlings
Abd-Elgawad, M., Koura, F., Abd El-Wahab, A., Abd-El-Khair, H., Montasser, S., Hammam, M. (2014). Effect of Tylenchulus semipenetrans inoculum levels on itsdevelopment, reproduction potential, and damage to infected-Volkamariana seedlings. EKB Journal Management System, 13(1), 95-106. doi: 10.21608/ejaj.2014.63687
Mahfouz Abd-Elgawad; Faika Koura; Ahmed Abd El-Wahab; Hassan Abd-El-Khair; Sayed Montasser; Moustafa Hammam. "Effect of Tylenchulus semipenetrans inoculum levels on itsdevelopment, reproduction potential, and damage to infected-Volkamariana seedlings". EKB Journal Management System, 13, 1, 2014, 95-106. doi: 10.21608/ejaj.2014.63687
Abd-Elgawad, M., Koura, F., Abd El-Wahab, A., Abd-El-Khair, H., Montasser, S., Hammam, M. (2014). 'Effect of Tylenchulus semipenetrans inoculum levels on itsdevelopment, reproduction potential, and damage to infected-Volkamariana seedlings', EKB Journal Management System, 13(1), pp. 95-106. doi: 10.21608/ejaj.2014.63687
Abd-Elgawad, M., Koura, F., Abd El-Wahab, A., Abd-El-Khair, H., Montasser, S., Hammam, M. Effect of Tylenchulus semipenetrans inoculum levels on itsdevelopment, reproduction potential, and damage to infected-Volkamariana seedlings. EKB Journal Management System, 2014; 13(1): 95-106. doi: 10.21608/ejaj.2014.63687

Effect of Tylenchulus semipenetrans inoculum levels on itsdevelopment, reproduction potential, and damage to infected-Volkamariana seedlings

Egyptian Journal of Agronematology
Article 7, Volume 13, Issue 1, July 2014, Page 95-106  XML PDF (160.8 K)
Document Type: Original Article
DOI: 10.21608/ejaj.2014.63687
View on SCiNiTO View on SCiNiTO
Authors
Mahfouz Abd-Elgawad1; Faika Koura1; Ahmed Abd El-Wahab2; Hassan Abd-El-Khair1; Sayed Montasser3; Moustafa Hammam4
1Phytopathology Department, National Research Center, El-Tahrir St., Dokki 12622, Giza, Egypt
2Department of Agricultural Zoology and Nematology, Factulty of Agriculture, Al-Azhar University, Egypt.
3Department of Agricultural Zoology and Nematology, Factulty of Agriculture, Al-Azhar University, Egypt
4Phytopathology Department, National Research Center, El-Tahrir St., Dokki 12622, Giza, Egypt.
Abstract
Six inocula 0, 5000, 10000, 15000, 20000 and 25000 second stage juveniles
(J2) and males/pot of T. semipenetrans were tested on 1.5-year-old nematode-free
seedlings of Citrus volkameriana. The inoculated seedlings were grown in plastic
pots containing about 5 Kg of sterilized sandy clay soil (2:1) under greenhouse
conditions for a year. Nematode reproduction and host growth were both affected
by the initial inoculum levels. The maximum reduction percentage of shoot length
(38.3%), fresh (25.9%), and dry (44.7%) weight as well as root length (36%) and
fresh weight (30.5%) were recorded at inoculum levels 20000, 20000, 15000, 25000
and 15000 J2 and males/seedling; respectively. On the other hand, the maximum
nematode final population of J2 and males (95515), females (1442), and eggmasses
(820) were obtained at initial inoculum levels of 20000, 20000, and 15000 J2 and
males/seedling; respectively. A negative relationship occurred between the
nematode inoculum level and the rate of reproduction.

Keywords
citrus; inoculum levels; Tylenchulus semipenetrans; Volkameriana
Statistics
Article View: 132
PDF Download: 263