This research was carried out at the Agricultural Scientific Research Center in Hama, in seasons 2020, 2021 to study the effect of foliar spray of seaweed extract on the growth and productivity of the olive tree cv. Kaisi, Where the foliar spray was
applied with seaweed extract called alga 600 in concentrate of (0.5 g/l) According to treatments: A0 control without spraying seaweed extract, A1 one spray one week before flowering, A2 one spray after fruit set, A3 one spray one month before harvest, A4 two sprays (before flowering and after fruit set), A5 two sprays (after fruit set and one month before harvest) A6, three sprays (before flowering, after fruit set, and one month before harvest) with the addition of ground fertilization according to the Fertilizer recommendation. The results of foliar fertilization showed a significant effect on the vegetative growth traits, as The treatment one month before harvest was superior to the rest of the treatments with a primary shoots length average 6.94 cm, while the control was 4.75 cm, while seaweed extract had a positive effect on the total number of flowers. Where the spraying treatment before flowering and after the fruit set contract was superior to the rest of the treatments, as the average number of flowers was 203.11 compared to the control with an average number of flowers 164.19, as well as in the percentage of fruit set, as the highest percentage of the contract when spraying treatment before flowering was 3.20% and in control 2.19% The results also showed a clear superiority in the productivity of the tree, especially the treatment before flowering and after the contract, Where the average tree productivity was 37.07 kg, and in the control it was 14.07 kg It was observed that there was a significant increase in the percentage of oil for the fruits, as a treatment a month before harvest was significantly superior to the rest of the treatments in both seasons, as the highest value of the oil percentage reached 20.28%, followed by a treatment before flowering, after fruit set and one month before harvest, with an oil percentage of 20.27 compared to the control 17.17%.
The environmental and biological study of the olive moth Prays Oleae.B was conducted in the Natural Resources Research Department of Homs Research Center in 2015-2016, where seasonal changes of the olive moth P. oleae group were monitored using pheromone sexual attraction traps.
The aim of this study was to estimate the total amount of phenolic compounds of olive
trees leaves (Olea europaea L.) as Biomarker for the assessment of lead air pollution at
Banias area. Olive trees were selected as the predominant species in the
study area. The
samples were collected from 6 locations at different distances from the vicinity of the
Banias refinery (0.1, 0.5, 2, 4, 6, 10) Km. The dominated wind in the region is western -
southwesterly during the winter (March) and summer (September), The control was taken
from an area about 20 km from the refinery to the north-east (al-Qardahah rural).
The concentration of total phenolic compounds (TPC) during the summer was (45.6-70.85)
mg GAE/g dw and in the control (40.4) mg GAE/g dw, and during the winter the content
of TPC was (35.6-52.9) mg GAE/g dw and in the control (25.8) mg GAE/g dw. The
concentration of Lead (Pb) in unwashed leaves during the summer was (0.879 – 2.170)
ppm and in the control (0.005) ppm, whilst during the winter was (0.479-1.023) ppm and
in the control (0.00083) ppm. The results showed significant differences in the
concentration of total phenolic compounds and lead between sites (Anova test). High
concentration of total phenols and lead in the summer compared to values in winter at all
sites (t-test). The results also showed a negative correlation between the concentration of
total phenolic compounds and lead with the distance from the refinery of Banias. Finally,
The results showed that the TPC can be used as biomarker of lead air pollution in Banias
area.
This study was designed to estimate the allelophatic effect of cogongrass (Imperata
cylindrica L.), in the growth of one year old of olive seedlings, in a nursery (greenhouse)
conditions. Two experiments were conducted in this study. In the first e
xperiment, the
effect of the aqueous extracts of cognograss leaves, rhizomes, and roots, at concentrations
of (2%, 4% and 8%) on the growth of olive seedlings (total length and diameter) were
evaluated. The results of this experiment indicated an inhibitory effect of the 4% and 8%
aqueous extracts on growth parameters. It was found that treatments with 4% and 8%
aqueous extracts caused significant reduction (60.2% and 83%) respectively in the total
length, in compare to the control. As for the 2% aqueous extract, it showed a stimulation
effect in the growth, an increase about 31.5% was recorded for the total length in compare
to the control. A similar result was observed in regard the seedlings diameter growth. The
2% aqueous extract showed an 56.8% increase in the rate of diameter growth, while the
4% and 8% extracts showed a reduction effects 80% and 91.5% respectively. The second
experiment evaluated the effect of dried powder of cogongrass parts at concentrations of
(2%, 4% and 8%) on the growth of olive seedlings.
The aim of this research is to optimize the selection of the sites of Evaporation
Tanks/Ponds, of Olive Mill Waste Water (OMWW). We have to achieve strict
environmental conditions, which in turn relate to a wide range of factors including
topograp
hy, namely: elevations, rivers, silos, lakes and faults, in addition of those related
to man-made geographical elements: cities, villages, roads, dams, wells and contemporary.
To complete the study and obtain reliable results, we adopt GIS, which requires defining
all of the above factors in the form of a graphical and descriptive environment.
The choice of potential sites is through verification of the required conditions using GIS.
This requires the availability of data specific to each condition, verification of other
conditions through field visits and measurements in the absence of necessary data, and it is
necessary to use the available space images significantly through GOOGLE EARTH for
initial verification of selected sites.
Appropriate technology is used according to the state of the OMWW, and according to the
economic potential of the application of this technology. The main objective of these
treatments is to reduce their load of organic matter. The remaining water will be used to
irrigate the agricultural land. Production of manure and feed of cattle.
Total Polyphenol was studied in olive leaves collected from Lattakia area
(AlQurdaha zone), where Phenolic compounds were extracted from dry Olive leaves by
using two extraction methods: maceration and Ultrasonic Device. By the both two methods
a
study was carried out on the extraction solvent concentration effect where the extraction
was done by using the mixture of Ethanol-Water with different percentages (60,70,80
%). As well, The extraction temperature effect was studied at the both methods at (20,30,
40°C); in addition to the study of the extraction time effect.
At the method of Maceration Extraction, the total polyphenols amount was studied in
dry olive leaves after extraction during different times (24,48,72 h). While at the Ultrasonic
Extraction the times were (10,20,30 min).
The study showed that the highest amount of phenolic compounds were existed in
dry olive leaves which were extracted by Ultrasonic Waves with the concentration of the
solvent ethanol-water 80%, temperature of 40°C, and with an extraction time of 20min.
The Bio-mass was isolated from the medium of the water olive
soaking , and was developed on two medium olive mill wastewater
OMW.
The following research
aims to characterize the work of olive mills in the study area with an
attempt to offer some of the competitive advantages offered by these
mills. Most of the studied mills are modern mills and have an
individual investment
of an average age of 12 years, Which means
that this sector is managed by a group of persons with high expertise
may contribute to raising the performance of the work in the mill.
in this study a land suitability evaluation was carried out for Olives
(Olea europancae ) cultivation and was performed in Latakia province.
it included 6 land units (coastal plains, valleys and river bed, summit,
gently sloping, moderately slopin
g, steeply sloping) each unit was
represented by one representative soil profile and its characteristics
were matched with olive requirement by using LAMIS and gis to
identify suitability classes.
The main objective of this research was the reality of irrigated olive
cultivation and analysis of production costs in the eastern region of the
province of Homs and identify the most important influence on profit
productive elements, The initial
field data collection of 2014 and 2015.
