Maimounh Almasri *(1) Sobhia Alarabi(1)
and Roudaina Albaka(1)
(1). General Commission for
Scientific Agricultural Research (GCSAR), Damascus, Syria.
(*Corresponding author: Dr. Maimounh
Almasri. E-Mail: email@example.com).
Received: 29/09/2018 Accepted: 19/01/2019
Six eggplant cultivars (Ramses, Rayan, Yakut, Black beaty, Aydin
siyoahi and Toros) were evaluated for their host suitability to Meloidogyne
incognita in a completely randomized design experiment, with five replicates,
for tow growing seasons 2015 and 2016 in outdoor pot experiments at the General
Commission for Scientific Agricultural Research, Syria. 40 days after planting,
seedlings were inoculated with 5,000 eggs and freshly hatched J2
/plant of M. incognita. Results showed that all cultivars were damaged
by root-knot nematode infection (Gall index=5) and were supportive for nematode
reproduction (RF> 1), ranging from susceptible to highly susceptible to the M.
incognita. Cultivar Toros was the most supportive for multiplication of
nematodes (RF = 4.7; 198.6 egg bags / 1 g root), while Aydin siyoahi was the lowest
(RF = 1.3; 198.6 egg bags / 1 g root). A positive correlation was noticed
between the nematode reproduction factor and both the number of root gall and
egg masses/root (r = 0.55 and 0.99, respectively). There was also a significant
decrease in plant height and vegetative weight compared to the control.
Key words: Cultivar, Eggplant, Reproduction factor, Gall index, Meloidogyne incognita.
Full Paper in Arabic: PDF
Ibrahim Aziz Sakr(1) and Usama Sagee Sheban*(1)
(1). Department of Plant Protection, Faculty of Agriculture, Tishreen University, Lattakia, Syria.
(*Corresponding author: Usama Sagee Sheban. E. Mail: firstname.lastname@example.org).
Received: 01/05/2018 Accepted: 10/07/2018
Within the efforts to control the harmful mites using environmentally safe methods, a study was carried out at a greenhouse planted with eggplant in Al-Bassa area , in Latakia governorate during the agricultural season 2016/2017 to evaluate the effectiveness of a number of plant extracts on Tetranychus urticae Koch 1836 (Acari: Tetranychidae) worldwide and very harmful to many hosts in greenhouse and field. The study included the seeds and leaves of Chinaberry, seeds and leaves of Cypress Lemon, seeds and fruits of River Red Gum, flowers and leaves of Oleander, and corms and leaves of Wild Arum. The Vaseline rings method was adopted and criteria: the average of mortality for the treated stage and fertility were calculated. The results showed that the highest efficacy was found when using the extract of the seeds of Chinaberry on adult females and on the first nymphs (65.4 and 69.3%, respectively). The lowest fertility was recorded with the extract of Oleander leaves (8.17%), which had the most effect on egg hatching (87.4%). It is worth to mention that the extracts of seeds, fruits and corams gave higher efficiency than the leaves extracts, and leaves extracts were higher than the efficiency of floral extracts against T. urticae phases.
Key words: Two-spotted red spider mite, Tetranychus urticae, Eggplant, Vaseline rings, Plant extracts.
Full Paper in Arabic: PDF
Ahmad Jarjanazi*(1) and Safaa Arafa(2)
(1). Second Faculty of Agriculture, Aleppo University, Aleppo, Syria.
(2). Technical Agricultural Institute, Albaath University, Homs, Syria.
(*Corresponding author: Dr. Ahmad Jarjanazi. E-Mail: email@example.com).
Received: 22/08/2017 Accepted: 14/10/2017
This research was conducted to determine the effect of covering rows with two types of transparent and black polyethylene on the growth and productivity of two genotypes of eggplant (Alwardi and Black) under the conditions of Bseren, Hama government, Syria during 2014 season. Split plots design was used in this experiment, with three replications. The results showed that covering rows with polyethylene has a positive effect on the vegetative growth of eggplant in comparison with the control. This was reflected positively on production and early maturity. Eggplants genotypes that were covered with transparent polyethylene exceeded significantly the other eggplants genotypes that were covered with black polyethylene in all the studied traits. The early maturity was clear for covering plants with both transparent and black polyethylene slices in comparison to the control during the first month of picking up fruits. Both treatments of covering exceeded the control in terms of productivity by 46.14% and 20.41%, respectively.
Key words: Eggplant, Soil covering, Polyethylene slices, Productivity.
Full paper in Arabic: PDF