The present study was conducted on aerial offshoots of date palm
Berhi cultivar after separation from their mother trees, their bases were
dipped in solution of plant growth regulator (IBA).
This research was conducted at AlTieba Research Station, General Commission
for Scientific Agricultural Research (GCSAR) in 2012 and 2013 seasons, to study
the effect of different doses of gamma rays on growth and productivity of local
garlic Alli
um sativum L. cultivar “Yabroudi” in Syria. Cloves were exposed to four
different doses of gamma rays of 60Co source 1, 2.5 ,5 ,10 ) Gray). Randomized
Complete Block Design (RCBD) was used .The results showed the surviving plants
after 60 days of planting declined with the increase of dose levels. The percentage
of dead plants at the doses (2.5, 5 Gray) was 50 and 54 %, respectively. Also, it
was possible to obtain a larger number of viable mutations. Therefore, they could
be considered as close as to LD50. The dose (10 Gray) had a negative effect on the
length of the cloves’ germination period, leading to the death of all the plants after
60 days of planting, this could be considered lethal dose (LD100). The response of
the local garlic cultivar Yabroudi to the low-dose (1 Gray) of gamma ray was higher
comparing with other doses. This is due to the positive effect of this dose (Stimulus)
on the vegetative growth that was reflected on the productivity indicators. The
productivity reached (4.50 kg/m2), which was significantly superior to the control
(2.91 kg/ m2) and the two doses (2.5, 5 Gray), respectively (2.26, 1.60 kg/ m2).
This research was carried out through the 2012-2013 season on 10 years old, grafted on the rootstock B41,grapevines of Al-Hulwani cultivar. Three levels (10,20,40 t/ha) of organic fertilizers of cow, sheep plus and poultry were used, in addition to
three treatments from mixture of this levels (3.33,6.66,13.32 t/ha) for one type of the fertilizers. The research also included three treatments from mixture of mineral fertilization with (N,P,K) at the rate (1:1:1) by using urea 46%, super phosphate 46% and potassium sulphate 50% in three levels (100-200-400 kg/ha), in addition to the control without fertilization, to study their effects on Some quantitative and qualitative Characteristics of the grapevine cultivar Al-Hulwani. The results showed the following:
The use of organic and mineral fertilization gave in all levels and types superiority in all studied characteristics compared to the control.
Most levels of organic fertilization and its treatments are superior to mineral fertilization in all studied characteristics.
The first level of sheep plus (10 kg/ha) gave the better results in weight of cluster and quantity of product, but the first level of poultry gave the better results in weight of 100 fruits.
The use of organic manure was with positive effect on fruits color and was superior to mineral fertilization.
The yield/vine increased significantly from 65.77kg/vine to 118.5 and 97.8kg/vine when the low level of sheep puls the mixture of the medium levels of mineral fertilizers were used.
The trial was carried out during the season 2014, on grapevines
of Al-Baladi. Al Baladi, 20 years old, grafted onto rootstock, and trained in the trellis way, to study the influence of different levels of 4 times/season soil applied seaweed extract , on some qualitative and quantitative characteristics of Al-Baladi grapes.
In this study, we used plant tissue culture techniques for micropropagation
of the endangered Red Doumani cultivar. The explants which were the apex
tips and axillary buds (0.5-1 cm) have been cultured on the free of hormones
initial medium WPM (W
oody plant medium), then moved to the
micropropagation media. The results showed that the medium containing 4.44
mM BA + 0.58 mM IAA had the best effect on number of new shoots formed
(2.6) and the growth started after 9.22 days, the best elongation was on the
medium supplemented with 4.6 mM KIN + 0.58 mM IAA and the rate of
multiplication reached 5.15 shoots.
The study was conducted at the growing season 2009 in one of an orchard
in Abu-Al-Khaseeb region – Basrah, studied the effects of spraying of GA3
concentration of 25 mg. l-1 and spraying of liquorice extract concentration (5,
10) g.l-1 and sprayin
g of Roselle extract concentration (15, 20) g.l-1 as well as
compared treatment (spraying with distilled water) in two stage hbabok and
Kemri on fruit drop and qualities of Braim cultivar, showed results that the
spray in hababok stage and treatment of GA3 concentration 25 mg.l-1 increased
of weight and size of the fruit significantly and did not show significant
differences between the spray at the stage of hababok and Kemri in influencing
the T.S.S., while treatment of spraying liquorice extract concentration of 5 gm.l-
1 increased total soluble solids and dry matter significantly, werever spraying at
the stage of Kemri with GA3 increased significantly in water content of fruits,
while sprarying in hababok stage increased in dry matter content of the fruits
and did not show significant differences between the results of treatments or
the stage of spraying in effect of Drop fruits for a cultivar of Braim through the
stages of growth and maturity (Khalal, Rutab and Tammar) this results
confirms that the phenomenon of drop fruit under the influence of genetic type
male and female cultivar.
The effect of different harvesting dates on the quality and storage ability
was studied for fruit of Coscia pear cultivar, which planted in the area of Daher
Aljabal- Sweida during two successive seasons 2007-2008. Fruit were harvested
in three di
fferent dates by week time intervals and stored for seven months at
(0-1 Cº and 90-95 % RH) in the storage units of apples and vine research
department. The effect of harvesting dates of fruit on the physical and chemical
properties was determined during period of 7 months in cold storage, by month
time intervals. The second date of harvest affected by decreasing weight loss
percentage, decay percentage, titratable acidity T. A, starch content and
firmness, in addition to that total soluble Solids T. S. S, number of acidity PH,
storage ability and shelf life were increased compared to the harvested fruit in
the different dates.
A landrace (Hourani-٢٧) and two newly introduced cultivars (ACSAD-٦٥
and Amra) were grown at five different locations (JUST, Shajarah, Hawarah,
Kharja and Turrah) with or without NP treatment.
