A field experiment was conducted during the two consecutive growing seasons
(2010/2011 and 2011/2012) at Ezra’ Research Station/Deraa/Syria in order to evaluate the
role of some agricultural practices in improving the performance of four wheat vari
eties
(Acsad1105, Acsad1229, Acsad885 and Acsad901) under rainfed conditions. The experiment
was laid according to factorial randomized complete block-split design with three
replications. The mean average of early vigor, flag leaf area, peduncle length and leaf area
index was significantly higher during the first growing season for the wheat variety
(Acsad901) at the first planting date with a nitrogen amount of (150 kgN. Hectar1), and
when nitrogen fertilizers were added twice (1.6-2.5, 53.4cm2, 16.3cm, 1.20 respectively).
The mean average of the same studied aspects, however, was significantly lower during the
second growing season in the case of the variety Acsad855 with regards to the early vigor,
as well as in the case of the variety Acsad1129 in the case of the leaf area Flag at a late
planting date, and without nitrogen fertilizers (3.6 4.5, 3.3 cm, 0.18, 16.6 cm2
respectively). The mean average of the grain yield was significantly higher during the first
growing season for two wheat varieties (Acsad901, Acsad1229) at the first planting date,
nitrogen rate 200 kgN. Ha-1, and when nitrogen fertilizers were added twice (660.4, 631.1
g.m-2 respectively), while it was significantly lower during the second growing season for
the variety Acsad1105, at a late planting date, and without nitrogen fertilizers (127 g.m-2).
Optimizing some important cultural practices helps increasing wheat grain yield by
improving morpho-physiological traits related to yield particularly the size of source
photo synthise (Leaf Area Index, Flag leaf area). The response of astivum wheat variety
was better compared to durum wheat. This shows the importance of improving crop
mangment factors in order to reach the maximum potential yield.
A field trail was conducted at Jeleen Research Station, Dara,a governorate,
Syria, during two consecutive growing seasons (2010/ 2011-2011/ 2012), in
order to evaluate the role of some cultural practices in improving nitrogen use
efficiency and gr
ains quality characteristics of four wheat varieties (Acsad1105,
Acsad1229, Acsad885 and Acsad901). The experiment was laid according to
randomized complete block design-split, with three replicates. Leaf area index,
grain starch content and grain yield were significantly higher during the first
growing season, in the wheat variety (Acsad901), for the first planting date, and
nitrogen rate (200 Kg N. ha1-), when nitrogen fertilizer was added in two splits
(1.25, 68.60 %, 1051 g. m-2).
This study was conducted in Abu-Jarash farm at the Faculty of Agriculture,
Damascus University during the main season 2013 to evaluate the effect of soil
solarization and organic fertilization treatments on the productivity of some
maize genotypes
(Basel 1, Basel 2, Ghouta 1, Ghouta 82 and Local White). The
experiment was laid out according to split-split plot design with three
replications. The statistical analysis results clearly indicated to the existence of
variability in the response of studied maize genotypes to soil solarization and
organic fertilization treatments. The genotype Ghouta 82 surpassed in the traits
of plant height, leaf area index, 100-kernel weight and grain yield (150.25 cm,
2.84, 28.10 g and 7.99 ton.ha-1) respectively, as compared to other studied
genotypes and was closely followed by the genotype Basel 2 which recorded the
highest number of rows per ear (13.83 row/ear). Soil solarization for 45 days
before sowing and applying organic manures at the rate of 20 ton.ha-1
encouraged the traits of plant height, leaf area index, number of rows and
grains per ear, 100-kernel weight which was reflected on grain yield. Therefore
we can grow variety Ghouta 82 or hybrid Basel 2 to get higher yield of maize.
The research was carried out in Nawa area in Daraa governorate during
the year 2012, to study the response of four sesame genotypes (Local Idleb,
Zouri, Improved Hourani and Brown Sudani) to four irrigation treatments
(rainfed cultivation, one sup
plemental irrigation during branches formation,
two supplemental irrigations during branche and capsules formation and three
supplemental irrigations during branches formation, capsules formation and
seed filling stages). The experiment was laid out in split plot design with three
replications. The statistical analysis clearly indicated to the existence of genetic
variation in (p < 0.05) the response of the studied sesame genotypes to applied
irrigation treatments. The genotype Local Idleb recorded significantly the
highest values of all investigated traits and the heighest seed yield (3.45 t. ha-1)
as compared to other studied genotypes. Providing sesame crop with three
irrigations surpassed in all investigated traits and recorded the highest seed
yield (3.79 t.ha-1). It was recommended to provide sesame crop with three
irrigations during critical stages (branches formation, capsules formation and
seed filling).
The research was conducted at Abo-Jarash farm, faculty of
agriculture, Damascus university during the two growing season
2011-2012 and 2012-2013 in order to evaluate genetic variability of
some lentils genotypes based on some physiological and
productivity traits associated with drought tolerance. The
experiment was laid out according to factorial randomized complete
block design with three replications.
Laboratory experiment was conducted in the laboratories of field
crops department, Faculty of Agriculture, Damascus University,
during the year 2011, in order to screen some lentils genotypes to
osmotic stress at seedling stage.
This research was carried out during the agricultural season 2014 in the
Buqai'a plain in west of Homs governorate, to study the effect of several
systems for intercropping on Corn crop (Zea mays L.( and Soybean crop
(Glycine max L.): (Zea mays li
ne : Soybean line) (Zea mays line : Two
Soybean lines) (Two Zea mays lines + Soybean line) ( Two Zea mays
lines + Two soybean lines) (Single Zea mays crop), (Single soybean
crop).
نفذت التجربة في مركز بحوث القامشلي ( هيمو ) خلال الموسمين الزراعين 2012-2013 و 2013-2014 بهدف تقييم أداء صنف القمح القاسي ( شام9) ضمن ظروف الزراعة الحافظة بالمقارنة مع الزراعة التقليدية ( تحضير الأرض قبل الزراعة ) .
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.
