السماد العضوي ( الكومبوست ) الناتج من مخلفات التقليم وتأثيره على إنتاجية بعض أصناف الدراق والتفاح في منطقة الزبداني
The experiment was conducted at the Research Station of Middle Heights,
during 2014 and 2015 seasons. Three varieties of Quinoa were used i.e. Ames
13762, NSL 106398 and Ames 137, which were introduced from International
Center for Bio Saline Agri
culture (ICBA), and they were selected out of five
varieties that were grown as observation lines in 2013, to get one variety, high
forage and grain yields, also suitable for the local conditions. RCBD design
with four replications was used. The traits that were studied were: Earliness,
plant height, flowering at 50%, green forage, grain and dry matter yields.
Results indicated that there were highly significant (p≤0.01) differences
between seasons and varieties in respect to plant height, green forage, dry
matter and grain yields. While, no significant effect for the interaction between
varieties and seasons overall growth performances.
To determine the susceptibility of some olive varieties to the
disease of eye peacock, We studied the development of eye peacock
disease on 3 varieties (Khadairy - Zorzalina - Frontoio. The
percentage of infected leaves and the severity of infection were
estimated during spring and autumn months, the maximum period
of the spread of the disease.
Two separate pot experiments were conducted during the agricultural season (2012-2013) and a complete randomization system was used, studying the response of four certified Syrian soft wheat cultivars (Triticum aestivum L), namely (Sham 4, Sham 6, Bo
houth 4, Bohuth 6) towards nitrogenous additives and the dates of addition different types and evaluate the efficiency of these varieties in benefiting from the added nitrogen fertilizer.
A field experiment was carried out at Abi Jarash farm at the Faculty of Agriculture at Damascus University during the 2011-2012 agricultural season in order to study the effect of seed hardening and supplementary irrigation in improving the tolerance of faba bean (vicia faba L.) varieties to water stress.
The aim of the research was to study seasonal changes communities of spider mites
and predatory mite Typhlodromus athiasae Porath and Swirski on two apple cultivars
(Golden and red Delicious) from orchards located in two regions: Al-Mokharam and Al
-
Qusayr during the beginning May 2013 and the end of October 2014. The results showed
that the highest density of the spider mites was in two essential period in early and mid
summer, while T.athiasae started its active with started pery active, that started appear in
the may, and the top of its number was in July, The mean density of the mite predator and
spider mites was higher on the red Delicious apple cultivar compared to Golden Delicious
with significant differences, and its presence was higher in the Al-Qusayr region compared
to the Al-Mokharam region with significant differences, also remarked this predator on
some surrounding vegetation in these orchards.
Biological characteristics and life table parameters of the two-spotted spider mite Tetranychus urticae (Koch) were studied when fed on leaves of two apple cultivars (i.e. Golden and Starking dilishz) under laboratory conditions 25±1 Cº, relative hum
idity 65±5% and 16L:8D. The intrinsic rate of increase (rm) by females of T.urticae was higher on leaves of Starking dilishz apple cultivar than on leaves of Golden dilishz apple cultivar (0.30, 0.27 female/female/day) respectively, while the generation time (T) and the time required for doubling the number of community mite (DT) were lower on leaves of Starking dilishz apple cultivars than on leaves of Golden dilishz apple cultivars (13.77, 2.3 days and 14.54, 2.55 days) respectively. The duration of the stages of growth from egg to adult female on leaves of Golden dilishz apple cultivar was longer than on Starking dilishz apple cultivars, where was (13.32 ± 1.15 and 12.22 ± 1.13), respectively, The Total fecundity on Golden dilishz apple cultivar was lower than on Starking dilishz cultivar (83.11 ± 8.91, 101.62 ± 15.48 eggs/female) respectively, The adult longevity on Golden dilishz leaves was lower than on Starking dilishz cultivar (15.33 ± 1.35, 17.14 ± 1.07 days) respectively, These differences on the apple varieties may be due to the chemical content and quality of the food and nature of the host tissue plant and the specifications can affect the rate of oviposition and development. and thus the Starking dilishz apple cultivars was more suitable for the development and reproduction of T. urticae compared with the Golden dilishz apple cultivar.
Given the economic importance of tobacco in the Syrian coast, which is one of the most important agricultural crops which contribute to raising the level of economic life.
In this research we focused on studying the varieties of tobacco produced in
the Syrian coast by studying the quantities produced of each item and the costs and revenues of the production and profitability of production and its role in agricultural GDP during the period (2000-2011), which gives a clear picture of the impact on economic development, through applying multiple regression to examining the contribution of various tobacco varieties produced on the Syrian coast agricultural GDP, and is based on data collected from the General Organization for tobacco and cigarettes company in the governorate of Latakia. One of the most important findings:
1. Type Verginia achieved higher profitability during the period (2000-2011), while the lowest type Zegreen profit achieved during the same period.
2. - Shak Elbent followed by Verginia and Tanbak are considered the most important types and the most contributable to the Agricultural Domestic Product (ADP).
3- There is no impact of the profitability of Basma and Prilep and Gernata and Zegreen and Berly types produced in the Syrian coast on the Agricultural Domestic Product (ADP).
استحداث الكالس وإعادة تشكيل النبات الكامل من خلال زراعة المآبر و الأبواغ المعزولة لبعض أصناف الحمص (Cicer arietinum L )
أجرينا تقييماص لبعض الصفات الفينولوجية والمورفولوجية والانتاجية لستة طرز وراثية من العدس وهي ( ادلب1 و أدلب 2 , وادلب 3, وادلب4 , بلدي, كردي)
