استخدمت في هذه التجربة عقل ساقية نصف قاسية في الموعدين الخريفي و الربيعي (أيلول و آذار) و التي عوملت بأربعة تراكيز من الأوكسين IBA) 2000, 4000, 6000,8000) جزء بالمليون بطريقة الغمس السريع إضافة إلى الشاهد، ثم زرعت بشكل عشوائي على أوساط تجذير مختلفة.
أشارت النتائج إلى تفوق الوسط (فيرميكولايت+ بتموس) معنوياً على كافة الأوساط المستخدمة عدا وسط البرليت في نسبة التجذير (90.5%)، و في متوسط طول الجذور عدا وسط البتموس منفرداً (10.9 سم)، و في عدد الجذور المتشكلة لكن على جميع الأوساط المدروسة (7.19 جذر/عقلة)، و ذلك باستخدام التراكيز 6000 و 4000 و 8000 جزء بالمليون على التوالي.
تفوق موعد أخذ العقل في الخريف معنوياً على موعد أخذ العقل في الربيع في نسبة التجذير عند استخدام التركيز 6000 جزء بالمليون، إذ وصلت إلى أقصاها (100%)، و في متوسط عدد الجذور الذي بلغ ( 10.30 جذر/عقلة) عند استخدام التركيز 8000 جزء بالمليون. و أيضاً في متوسط طول الجذور عند التركيز 4000 جزء بالمليون (11.69سم)، حيث يمكن ربط ذلك بالحالة الفسيولوجية للعقل التي تختلف حسب الفصول.
كان للتراكيز الهرمونية تأثيرٌ واضحٌ في نسبة تفتح البراعم و التجذير و نسبة تشكل الكالس على قواعد العقل المعاملة، حيث ازدادت قيمها بازدياد التركيز الهرموني عدا نسبة التجذير التي انخفضت نسبياً عند8000 جزء بالمليون.
أظهرت العقل المجذرة قدرة عالية على التأقلم مع ظروف البيت الزجاجي ثم مع ظروف الوسط الخارجي، حيث بلغت نسبة نجاح التقسية 90% بعد شهرين من نقلها عند النوع المدروس.
This research studies the effect of mixing some locally available and cheap materials such as river sand, berlite, saw dust and lime powder with peat-moss as an alternative to pure peat-moss in making the casing layer of mushroom basins. Research in
cludes 14 treatments.
The results show that saw dust and berlite at levels of 10, 20 and 30% with peat-moss contribute in increasing the capacity of the water retention of the casing soil, compared with other treatments, having thus a positive role in increasing the production of the agricultural mushroom significantly in the first week. Saw dust treatment at 20% level recorded (16.33 kg/m2) in the same week, which is the highest production rate in comparison with the control treatment (9.5 kg/m2). Also, the total production of the first and second weeks recorded (26 kg/m2) for the 20% saw dust treatment compared to
(21.5 kg/m2) for the control.
A significant increase has been recorded in the amount of total production in all saw dust treatments, and decline in the rest of the treatments in comparison with the control. The lowest production of mushroom was (8.17 kg/m2) with lime powder treatment at 30% level. The treatments of saw dust levels of 10, 20 and 30% and berlite 20% registered an increase in the net profit and the earning potentials compared to the cost of production.
The aim of this investigation is studying effect of heat treatment and polyethylene packaging method in storability and quality of lemon fruits' Monachello and Enterdonato'. The experience was carried out in cold store of agriculture college in /Dama
scus university/, lemon fruits were stored at 10°c and 85% humidity for 180 days. laboratory experiences was carried out in laboratory of department of horticultural science in the same college during 2010-2011&2011-2012. Part of fruits were packaged in polyethylene bags with 30 microns, the other part of fruits dipped with hot water (62°c for 3 seconds)+ fungicide then were packed in polyethylene packs in addition to the control which untreated and unpacked.
The obtained results indicated the significant effect of dipping and packaging in perforated and unperforated bags treatments in maintain fruits quality of 'Monachello and Enterdonato' until the end of storage. maintaining of (32.89 and 39.06%( juice rate of Monachello respectively, and(11.05 and10.01%) of Enterdonato respectively. (35.27 and 36.57 mg/100ml (vitamin C of Monachello and (18 and11.07mg/100 ml( of Enterdonato, respectively.
On the other hand, the present investigation showed the positive effect of packaging treatment with 30 microns packs by reducing the weight loss for two sorts which was (51.94 and 68.83%) in dipping and packaging in perforated bags treatment respectively, and the important role to stop fruit decadence, and conserve their marketing specification until end of storage.
The study was conducted in order to know the ability of
Korschinskii Almonds and Orientalis Almonds to resistance of the
drought stress using several levels of water irrigation (100, 75, 50
and 25%) from the field capacity, with several indicators
(number
of leaves, the thickness of the leaves, root growth). The results
obtained showed not affected by the stock in the Korschinskii
Almonds drought stress (255, 242, 220, 198 leaves), while the
number of leaves that accompany the burning edges under the
influence of drought stress in Orientalis Almonds (250, 130, 60, 12 leaves) at levels of irrigation water (100, 75, 50, 25%) of field
capacity respectively.
This work was conducted to study the effect of two levels (50 and 75%) of
pruning on flowering (number of clusters, number of flowers, diameter of
flowers, flower-stem length) of three cultivars (Emile Mouillère - Nikko Blue -
Pia) of Hydrangea ma
crophylla. Pruning was done on the shrubs of four years
old in addition to a control without pruning. Results indicated that there were
differences among cultivars in response to the proportion of pruning. Emile
Mouillère, a cultivar with white flowers, the results showed an increase in the
proportion of pruning was associated with a reduction the number of fully
developed inflorescences per plant compared to control. For Nikko Blue, a
cultivar with blue flowers, the results showed that level (75%) was the best in
all studied indicators while for Pia, a cultivar with deep pink flowers, the
results showed that pruning with 50% level was the best in all productivity
indicators.
The experiment was carried out at Jableh region during 2012-2013 in two green
houses to study the effects of using the bumble bees and organic carbon to improve flower
set and yield of tomato hybrid Dalloula . The experiment included three treatmen
ts :
natural pollination (control) ,flowers pollination by organic carbon, and flowers pollination
by bumble bees . The first and second treatments were applied in the first green house , and
the third treatment was applied in the second green house . Results showed that the bumble
bees treatment produced significantly the highest percentage of flower set and yield than
the other treatments . Flower set of tomato over 10 clusters was 89.8% , 83.7% , 39.2% for
bumble bees treatment, organic carbon treatment, and control , respectively. The highest
yield (22 kg/m2)was obtained from bumble bees treatment . Flowers pollinated by bumble
bees gave fruits that looked better in shape , size and color ,and with higher weights . In
the bumble bee pollinated flowers , the quality of fruits was superior for vitamin C , sugar
and acidity .
This study aim at investigating the tolerance of two tomato rootstock (Sprit and ES-
30502) widely speared in Syria and used for crafting some tomato hybrids grown in green
houses for different salinity levels (0- 25- 50- 75- 100- 150 mM NaCl).
Th
e results show that the germination of rootstock Sprit seeds was not influenced by
high salinity 150 mM despite a delay of 1-2 days compared with the control. A reduction
of 15% was observed in the rootstock ES-30502 at 100 and 150 mM NaCl salinity levels,
in addition to slower percentage rate of germination. In contrast, the effect of salinity on
the development of the radical and rootlet was more pronounced in Sprit compared to ES-
30502. Salinity decreased the growth of both shoots and roots, and also decreased nutrient
acquisition in both rootstocks, but to a lesser degree in ES-30502. The uptake of K was not
greatly affected and concentrations in shoot remained normal. The concentrations of Ca
and Mg were also not affected by salinity. The most pronounced effect of salinity was on
nitrogen effect (NO3) which was reduced greatly in both rootstocks. This was accompanied
by accumulation of free NO3 ions in the shoot tissue (58 and 45 % of total N uptake at
salinity level of 150 mM). It is most likely that toxicity of Na and Cl ions, and consequent
osmotic changes in cell tissue led to slower nitrate reductase activity (NRA) and
accumulation of NO3.
This study was carried out during 2011- 2013 to determine some qualitative and
quantitative features of some distribution trees of Prunus ursina in different regions of
Syrian coast.7 natural distribution sites were determined and 43 trees were det
ermined as
samples.
22 features of different plant portions were studied using biological
measurements(leaves, flowers, fruits, seeds). Statistical analysis of investigated phenotypes
showed that trees were distributed in 5 groups (A, B, C, D, E) each one considered
phenotype. The results showed existence of one phenotype in several sites (C, D, E) while
(A and B) phenotypes were distributed in one site, while (A) phenotype was located in one
tree only in " Nabeen" site whereas (B) phenotype was located on only half investigated
trees in "Btmaze" site, while the other half distributed in (D) phenotype.
Morphological Characterization Has Been Achieved For (10) Phenotype Wild
Apple(Malus trilobata (Lab) ) In JABLEH mountains During The Period (2013-2014) In
Five Area (Pichraghe, Helbako, Almonaizlah, Raas al chaara, Aldalia),In Height Between
(780
-1250) m On See Standard, Morphological Characterization Included The
Characteristics Of The Tree, Stem, Shoots, Leaves, Flowers, Fruit And Seed. The Cluster
Analysis For (12) Characteristics Were Divided Into Two Groups Variation Ratio Even (57
%) , The First Group Included Four Types(Two Types Of Rass al chaara(R1, R2), One
Type Of Pichraghe(P1) And One Type Of Almonaizlah(M2) ), Variation Ratio Was The
Least(29.4%) Between (P1) And (R1), The Second Group Included Six Types (Tow
Types Of Pichraghe (P2, P3), Two Types Of Helbako, One Type Of Almonaizlah(M1)
And One Type Of Aldalia (D1).The Second Group Included Tow Sup Group Variation
Ratio Even (52%),The First(P2, P3), And The Second (H1, H2, M1, D1). Variation Ratio
Was The Least(23%) Between (H1) And (H2).
The research was conducted in plastic green house for the 2013-2014, in Alqangerh
village, about 5 Km from the city of latakia, in order to study the effect of spraying the
leaves with some humic compounds and amino acids on growth and production o
f hybrids
of cucumber (Novo,Dorruk).
Spraying leaves with three organic fertilizers are (Huzone, Mol mixs), and two boats
Dbalin and Amino vega (an amino acid).
The results showed that all treatments of leaves spraying with organic fertilizer geve
better resultus with significant differences than the control treatment in all the studied traits
of both hybrids: (stem length, number of branches/plant, number of leaves/plant, leave area
cm2, the number of flowers on the stem, number of fruits on the stem, number of floral
branches, number of fruits on the branches).The treatment of spraying achieved with
mixture of humic compounds and amino acids increase with significant differences in both
the number of leaves/plant, number of branches/plant, the plant's stem length and number
of fruit on the stem in the hybrid Novo. while the treatment of spraying achieved of hiozon
increase with significant differences the number of branches/plant, the number flowers on
the branches and number of fruits on the branches was in the hybrid Dorok. As for the
early production and total production, the treatment of spraying with mixture of humic
compounds and amino acids with significant differences on other transaction when both
hybrids Novo and Dorruk amounted, respectivety (5 ، 4,1 kg/m2 ; 16 ، 14,8 kg/m2 ).
