The research was conducted in village Habbet in Hafa (Lattakia region) 300 meters above
sea level during the period of 2016-2017 the plant material of the research is red cabbage
Ruby King F1 hybrid in order to study the effect of planting date on
growth and
productivity of red cabbage. The study consisted of five different planting dates during the
med of May, June, July, August and ,September months The completely randomized block
design was used with four replications and twenty plants in replication . The study contains
indicators: )leaf surface area, shape, volume, solidity and weight of cabbage heads, inner
stem length, total and marketable yield, percentage of marketable yield and content of
vitamin C)
The results showed that planting treatment during August and September gave the superior
results with significant difference in vegetative and productive indicators: leaf surface area,
solidity and weight of cabbage heads, total yield )3394.8، 3654( kg/d respectively,
marketable yield and percentage of marketable yield.
While The planting during May, June, July was superior on content of vitamin C which
was respectively (99.58, 98.68, 97.82 ( ml/100g with significant difference.
This research was carried out during 2009/2010 growing season in
swiri region which locates about 30 Km at the west of Homs city ,
located in the first stability region where the annual precipitation is
about 400 mm .
One cultivars of faba (Vicia
faba) was sown on three seeds rate
(high seed rate 220 kg/h – medium seed rate 185 kg/h – low seed
rate 150 kg/h) and three sowing date (15/11 – 30/11 – 15-12 ) 2009.
This research was conducted in a field of wheat located at Suran
(20 kilometers to the north of Hama city). The aim was to study
the influence of wheat planting date on wheat stem sawflies
infestation levels.
The research showed that the early wh
eat seeding led to
breaking the synchronization between the sensitive wheat
development period suitable for the wheat stem sawfly infection and
the existence of the insects in the fields.
The research was carried out at Agricultural Scientific Research Center of Hama
in tow season 2010/2011. Aiming to evaluate the effect of nitrogen fertilization and
planting date on some Productive and Technological characters of sugar beet Mono
g
erm(Simper cultivar) and Multi germ (HM10 cultivar). Results showed an effect of
fertilization on productive and technological characters of sugar beet. Increasing the rate of
nitrogen fertilizer to 250kg N.ha¹ caused a significant increase in root yield and actual
sugar yield (12.88 , 12.15 ton . ha¹) respectively, but it badly affected the sugar content in
the roots, juice polarity and juice purity (14.68, 15.95, 80.45%) respectively. Mono germ
Simper was found significantly superior compared to Multi germ HM10 in root yield, Brix,
root sugar content and juice polarity. Results showed that planting date 1/11 was found
significantly superior compared to dates 1/10, 15/10 for root yield, Brix, juice purity,
actual sugar yield. In conclusion, Simper (Mono germ) was suitable in planting date 1/11 at
nitrogen level of (200-250kg N.ha¹).
