At Tishreen University in the Faculty of Agriculture a study was performed during
the year(2014-2015),The experiment aimd to demonstrate the effect of increasing
concentrations of both sodium chloride(0,10,15,20 dsm-1) and gibberellic acid(0,25,75,
100
mg/l) and their interaction on some yield components of weat (SHAM10).The experiment
was designed as Completely Randomized Design(CRD)by three replicates(3x4x4).Data
were statistically analyzed to find out the least significal differences (LSD)between
treatment at(0,05)level.Results indicated that increasing of sodium chloride concentration
caused significant decreases in yield components(biological
yield,spikelength,numberofspikelets/spike,number of grains/spike,weight of1000 grain and
grains yield/pot.The treatment with GA3 acid especially (75)mg/l indicated significant
increases in all averages of yield components.Results of interacions for both factors
indicated that foliar aplication of GA3 acid counteracted that advers effects of high
concentrations of sodium chlorde of yield components of the (SHAM10).
This study was carried out during the growing season of 2015
to study effect od three planting date (1 Feb., 15 Feb. and 1
March) and four levels of nitrogen fertilization (0, 40, 60 and 80
kg/Ha) with interactive effect between them on some yield
components of cumin.
This search was carried out in the farm of faculty of Agriculture-
Damascus during 2012-2013 to determine the adaption of five
Safflower genotypes) Farming conditions in the lug
intensive in the province of Damascus under the effect of different
nitrogen fertilizers and witness without fertilization N3 . And how they affected safflower
accessions morphological traits and productivity.
This study was carried out at Karahta Station, Dept. of Field Crops
Researches, General Commission for Scientific Agriculture Researches
(GCSAR) Damascus, Syria, during the growing seasons (2009-2010, 2010-2011).
The crosses were grown inatrial us
ing randomized complete block design
(RCBD) with three replicates in order to evaluate number of spikes per plant,
number of grains per spike, thousand kernel weight and grain yield per plant
and estimate some genetic indices: broad scenes heritability (BSH), narrow
scenes heritability (NSH), and genetic advance (GA). Seeds of five populations
of the three evaluated single hybrids were formed by crossing of five inbred
lines. Analysis of variance results showed significant differences among mean
values of the five populations of each cross for all studied traits. The results
revealed that the broad scenes heritability ranged between high and moderate
for the following productivity traits (SP/PL, GR/SP, TKW and GY/P) and it
was (75, 40, 57) (38, 80, 38) (74, 60, 85) and (73, 73, 71) for the three crosses,
respectively. Additive gene action noticed on most traits indicated less selection
cycles to improve these traits.
This research was carried out during both growing seasons 2009/10 -
2010/11 at the National Center for Agricultural Research and Extension
(NCARE) / Karak Governorate / Jordan, to study the response of five barley
varieties namely Mu'tah, Yarmok,
Athroh, Rum and Acsad-176 to the effect of
four seeding rates (50, 100, 150 and 200kg/ha) and five nitrogen fertilizer levels
(0, 15, 30, 45 and 60kg/ha) on the productivity of grain and straw, the harvest
index and some phenological indicators.
This experiment was conducted at the Faculty of Agriculture, Damascus
University (2001 – 2002), to assess the effect of radiostimulation of seeds of two
durum wheat varieties (Hourani and Cham 3) on some morphological traits
and yield components,
by using three doses of gamma rays (10, 15, and 20 GY).
The study showed significant differences among radiation doses. The high
doses (15, 20 GY) caused a significant deterioration in growth and development
of plants, as well as yield components of the two varieties.
