The study was done at the field research station Sianow of General Commission for
Scientific Agricultural Research at Lattakia, to evaluate the susceptibility of 6 strains of maize
Zea mays. L, and fifteen maize crosses obtained by half Diallel cro
ss, against under conditions
Industrial infection by large corn stem borer , Sesamia cretica Led. The experience was
designed at randomized complete blocks (R.C.B.D).
Strain IL.257-09)P1( expressed general high capacity to the attributes of Number of
kernels per row(3.089), number of holes (-1.261). Strain IL.298-09 (P2) also expressed general
high capacity to the attributes of Ear length (0.717), Intensity of damage (-0.432),% of yield
loss (-6.022). strain IL.286-09 (P3) general high capacity to the attributes of diameter Ear
(0.292), number of rows per ear (2.806). Strains IL.255-09 )P4) )0.036( and IL.228-09)P5)
(0.969) also expressed general high capacity to the attributes of grain yield. Strain IL.262-
09(P6) expressed general high capacity to the attributes of 100- Kernel weight (1.942),
infestation grain yield) 0.784), tunnel length (-5.629), Percentage of dead hearts (-1.132).
The study was carried out at Abo Jarash farm, Faculty of Agriculture,
Damascus University, during the growing season of 2012, where the maize
cultivar "Gouta 1" was grown in three agricultural spacings (20, 30 and 40 cm
between plants in the same
row), with a fixed space (70 cm) between rows,
according to the randomized complete block design and three replicates per
treatment, in order to study the effect of the studied agricultural spacing on the
following characters: plant height, length and weight of ear, number of kernel
rows per ear, number and weight of kernels per ear, net percentage, hundred
kernels weight, the kernel yield, the dry yield and the oil and protein contents
in the kernels. Results showed a significant decrease in plant height from
155.31 to 130.10 cm, while a significant increase was observed in number of
kernels per ear (from 310.05 to 373.82 kernels), in weight of kernels per ear
(from 41.20 to 65.17 g) and in net percentage (from 61.61 to 91.51 %),
respectively with the increase of agricultural spacing from 20 to 40 cm.
However, the increase in these characters didn’t substitute the small number of
plants in the vast spacing compared with the narrow spacing, which is reflected
in kernel yield per unit of area that amounted to 3.19 and 2.04 tons/ha,
respectively.
A field experiment was conducted at two environmentally different locations
(Damascus and Dara'a), to evaluate the performance of 16 barley genotypes
under rainfed conditions during the growing season of 2011-2012 in order to
study in the response
of some quantitative traits and determine the yield under
drought conditions. The experiment was laid out according to the factorial
complete randomized block design with three replicates for each genotype.
Significant genetic variation was found in the response of barley genotypes to
water stress. The performance of all genotypes was significantly superior in the
less dry region (Izra’a-Daraa) compared to the more dry one (Abo jarash-
Damascus) for all the examined parameters. Results revealed that the number
of grains per spike was significantly higher in most lines compared to Arabi
Abiad and Arabi Aswad, and the number of grains per spike was significantly
higher in the line29 (43.17 grain per spike). The number of grains per m2 was
significantly higher in line29,line64, Arabi Abiad and line14 (11177, 10809, 10802,
10744 grains per m2), respectively. The mean grain yield was significantly
higher in the line64, line14 and Arabi Abiad. (479.3, 476 and 443 gram per m-2),
respectively. Harvest index was significantly higher in all lines compared to
Arabi Abiad and Arabi Aswad.
This research was carried out at the farm of Faculty of Agriculture,
Damascus University, during 2010-2011 growing season to determine the effect
of seedling rate on yield traits (plant number at harvesting, plant height,
number of umbels/plant, n
umber and weight of seeds/ umbel, plant dry weight,
seed yield and harvest index.) of four ecogenotypes of Anise plants, (Pimpinella
anisum L.) collected from different places of Syria: Damascus countryside
(Hena, Saasaa), Homs and Edlib. Sowing rates were 10, 15 and 20 Kg/ha.. Trial
was laid out using completely randomized block design with three replicates for
each treatment. Results showed that studied traits differed according to seeding
rate and the ecotype. There were significant differences for the treatment of
seeding rate of 15 kg/ha., on seed yield. Regardless the ecotype, increasing the
seeding rate up to 20 kg/ha. resulted in maintenance of highest number of
plants/unit area, but accompanied with reduction in fertile umbels and seed
weight. Statistical analysis showed that the ecotype of Edlib recorded the
highest seed weight/ plant and highest seed yield/ planted area, especially with
the seeding rate of 15 kg/ha. However, the results showed the seed components
of Anise (plant number at harvesting, weight of seeds/ plant) and seed yield
were affected by the ecotype and seeding rate.
In a study conducted at Research Center of Dara'a, General Commission
for Scientific Agricultural Research during two growth seasons 2007/2008 and
2008/2009. 11 faba bean (Vicia faba L.) populations were planted in an
experiment designed randomize
d complete blocks design with three
replications. The objectives were investigation of phenotypic variance among
populations studied, to determine the relationship among number of yielded
branches plant -1, number of pods plant -1 , number of seeds pod -1, 10- green
pod weight (g) and yield of green pods plant -1 (g) using correlation and path
coefficient analysis. The combined analysis of variance showed highly
significant differences among populations under study and for all
characteristics studied, except number of yielded branches plant-1 where
differences were only significant. The correlation and path analysis studies
revealed that negative and highly significant relationship was found between
number of yielded branches plant -1 and yield of green pods plant-1, while was
positive and highly significant between yield of green pods plant-1 and 10-green
pod weight. All direct effects of components studied were negative in both
seasons, except 10-green pod weight, and these results suggested adopting the
last component as a selection index during making selection of high yielding
genotypes in faba bean populations. .
This field study was carried out at EL- Gab Research Center during furing
2000-2001. Six fungicides namely, Benomyl 50%, Difenoconazole, Diniconazole,
Fludioxonile, Triticonazole and Thiram 37.5% + Carboxin 37.5% with high
doses×1, ×2, ×4, ×8 were
used as seed dressings on chickpea cultivar Gab3 to
study their effects on Ascochyta blight infection.
The results showed that fungicides eradicated the infection from the seeds
and protected the seedlings from infection. There was a clear effect on delaying
the infection by ascochyta blight on chickpea for about 10-15 days in
comparison with the untreated control. However, Higher doses of some
fungicides negatively affected the yield.
This experiment was conducted during ١٩٩٦-١٩٩٨ to ivestigate study the
effect of using different types of irrigation water on some soil properties and its
cotton, corn and wheat productivity under the agroclimatic conditions of Deir
Ezzor.
It is well understood that the productivity and thus the final yield of a crop
are the result of several interacted factors, which have different effects on yield.
This requires the determination of all factors affecting yield or other traits, the
relationships among these factors, the value of correlation coefficient and the
degree to which yield is affected by each of these factors.
This research was conducted at the farm of Abu-Jarash, Faculty of
Agriculture, Damascus University. The aim of this research was to
evaluate the performance and productivity of 9 bread wheat (T.
.aestivum )and 3 durum wheat T. durum.
The experiment was laid out in a Random Complete Block design
(RCPD) with three replication.
Methodsof soils cultivating and organic fertilizer are considered as
the most important operations that change the soil; and prepare it
to receive multiplications units of the crops that we want to plant
and to provide the suitable conditions for feeding the plant later,
and to increase the production and to improve the quality along
with keeping the various properties of the agriculture soil.
