PARENT SESSION
Friday, August 11, 8:00-10:30 am
Poster Session 26 - Latebreaking and newsworthy posters
Exhibit Hall, Ballroom Level, Cook Convention Center
Susceptibility of some dry date palm varieties to infestation by Oryzawphilus surinamensis (L.) (Coleoptera: Silvanidae) in relation to their chemical composition.
Aldosari, Saleh*,1, Al-Suhaibani, Ali2, Ali, A3, 1 King Saud Universtiy, Riyadh, Riyadh2 King Saud Universtiy, Riyadh, Riyadh3 King Saud Universtiy, Riyadh, Riyadh
ABSTRACT- Abstract The comparative vulnerability of eight accessions of dry date to artificial infestation by sowtoothed grain beetle O. surinamensis as well as, the effect of the quantitative and chemical composition of the date fruit on infestation were studied. Three accessions Cebiky, Sokary and Moonifie harbored the highest number of stored product insects. Accession of Sefrie and Royhan recorded slight numbers of insect, while the varieties of Serie, Sakei and Khodary had moderate number of stored product insects. Increasing of moisture content in different varieties was corresponded with the decrease in infestation by stored insect, while increase of relative sucrose, protein and fat ineter different varieties lead to an increase in infestation percentage. The relationship between ash and infestation showed no significant difference. The infestation rate showed significant negative correlation with moisture content, significant positive correlation with carbohydrate and protein and insignificant correlation with fat and ash
Key words: ORYZAEPHILUS SURINAMENSIS