Year 2016, Volume 1, Issue 3

Year : 2016
Volume : 1
Issue : 3
   
Authors : Leena IRSHAID, Luma ALBANNA, Monther SADDER
Title : POPULATION DYNAMICS OF DAGGER NEMATODE ATTACKING ALEPPO PINE TREE IN JORDAN
Abstract : The temporal distribution of an isolate of the dagger nematode attacking Aleppo pine, Pinus halepensis grown in AL-Jubiha area in Jordan was investigated. A total of eighteen samples were collected from rhizosphere about 30 cm deep in soil and 50 cm away from the trunk of a Pine tree showing decline and brown needles as one sample per month starting in November 2014 until April 2016. Cobb sieving and gravity methods were used for the nematode isolation from rhizosoil. The soil type is clay with 51 % porosity. The monthly air temperature, precipitation, and relative humidity were monitored and tabulated. The results showed that the number of recovered nematodes ranged from 2 individuals /100 cm3 to 88 individuals /100cm3 of rhizosoil. The lowest number was recovered on October whereas the highest numbers were recovered in December. The reason of decline in numbers may be due to a raise in temperature. The highest number may be due to favorable temperature and soil moisture. The difference of nematode in same month in two different years may be due to the temperature and precipitations.
For citation : Irshaid, L., Albanna, L., Sadder, M. (2016). Population dynamics of dagger nematode attacking Aleppo pine tree in Jordan. AGROFOR International Journal, Volume 1. Issue No. 3. pp. 26-31. DOI:10.7251/AGRENG1603026I
Keywords : Aleppo pine, dagger nematode, population, temperature, moisture
   
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