Browsing by Author "Bendifallah, L."

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IMPACT OF FUNGICIDES ON THE PERFORMANCE OF TEN VARIETIES OF POTATO NEWLY INTRODUCED IN ALGERIA
(University of Eloued جامعة الوادي, 2018-01-01) Khedam, K.; Allal Benfekih, L.; Bendifallah, L.; Moudoud, R.
The potato is an increasingly important food in Algeria. Domestic production has increased in recent years due to high consumption. Faced with this increase in consumption, it is necessary to produce quality potatoes from the point of production yield. The present work aims to study the variability of potato production in relation to the production areas. On the other hand, newly introduced variety trials are conducted treated with fungicides. The yield results show that the Challenger and Synergy white-skinned varieties are the most profitable, the production has reached more than 350Qx / ha with a yield index greater than 100%, they have shown resistance to fungal diseases in contrast to varieties Lusa and Senna, which reacted negatively even with the foliar treatment, their yield is very low.
Phytochemical Study And In Vitro Antimicrobial Activity Of Pistacialentiscusl. In Boumerdes Mountainous Region (algeria)
(University of Eloued جامعة الوادي, 2014-07-01) Bendifallah, L.; Benmahfoud, A. E.; Hameni, Y.; Mameche, S.
Pistacialentiscus L.(Pistaciaceae) is among themost important medicinalplantsin Algeria that is known for its antifungal and antimicrobial properties. For this study, the leaves were collected from the mountainous region of Boumerdes, in northern Algeria. In such a propitious context, the aim of this study was to enhance Pistacialentiscusas a medicinal herb. For their antimicrobial activity, extracts of tannin and polyphenols werescreenedagainst three pathogenic bacterial strains and one pathogenic yeast strains. The phytochemical analysis results showed a remarkable combination of chemical components including a high content in tannins, in leucoanthocyanins, in glucosids, alcaloids, flavonoïds and in saponosids. The tannins and the polyphenols have strong antimicrobial activity against some species.
Study Of Genitalia Morphometric Variability Of The Two Species Helix Aperta And Helix Aspersa (gasteropoda, Pulmonata)
(University of Eloued جامعة الوادي, 2017-01-01) Benbellil Tafoughalt, S.; Bendifallah, L.
Our research aims for, firstly, the study of genitalia morphometric variability of the two species Helix aperta and Helix aspersa, and the relation of this variability with individual’s weight and shell size. Secondly, differences in dimensions of the genital organs between the two studied species were investigated. This study showed, first, the existence of an important dimensional variability of genital organs in both studied species, then, a positive correlation between organs’ measurements and those of weight and shell. Finally, two genital organs, that are flagellum and proximal duct of bursa copulatrix, proved to be interesting to discriminate between the two species Helix aperta and Helix aspersa, because both organs are greater in Helix aspersa.
Study Of Trophic Relationships Between Diaspididae Family Species -host Plants -predators And Parasitoids In Algeria
(University of Eloued جامعة الوادي, 2017-01-01) Belguendouz, R.; Biche, M.; Bendifallah, L.
The use of parasitoids and predators in biocontrol contribute to the development of sustainable agriculture, respects environment and human health. In this context, we undertook the identification of natural Diaspididae enemies located on the Algerian territory. Results highlight three predatory families: Coccinellidae, Nitidulidae and Coniopterygidae families, the first represented by the most voracious species as Rhyzobius lophantae living on 19 Diaspines observed on 121 plants, from the northern, and two parasitoid families lived on 39 Diaspididae species affecting 125 plants and were represented by four genera and 23 species such as Aphytis and Encarcia (Aphelinidae) lived on 31 diaspididae species found on 125 host plants. The most voracious and polyphagous species identified are interesting for IPM