The present investigation was carried out at the nursery of Agricultural faculty- Tishreen
University, during 2016-2017, to evaluate the best organic culture medium for the seedling
production of Zinnia (Zinnia elegans) and Stock (Matthiolaincana)
with the lowest costs.
Seven different mediums were experimented (Turf, waste mushroom compost, farm waste
compost and their combinations).
The results showed some differences in chemical and physical characters of experimented
mediums. This differences had an impact on germination parameters (seed germination
percentage, speed of germination, daily germination) and seedling quality (seedling length,
collar diameter, fresh and dray weight, percentage of dray matter).
The results indicated the mediums consisting of turf (T1), waste mushroom compost with
turf (T6) and waste mushroom compost with farm waste compost (T7) gave the best
germination rate and the highest quality of seedling.
Data showed as well that T3 and T7 treatments realized the lowest costs and higher
economic profit than other treatments.
This investigation was conducted at Pome and grapevine Division in Sweida,
General Commission for Scientific Agriculture Research (GCSAR), and at Ira
Agricultural Nursery, during 2011 and 2012 seasons, to detect the genetic variation
among five ap
ple seedling genotypes in Mafaala Malus communis fields, and within
the seedlings produced from them, using 10 SSR primer pairs.
The research was conducted on some olive
varieties known as Alsourani- Aldan- Mahazm Abu Satel- Alglet-
Alnepali, in the aim of comparing their tolerance against the stress
of salinity (sodium chloride) through some morphological and
physiological traits. Different concentrations of salt as well as to
the control (fresh water) were used in this experiment.
The study was performed in Barshin Research Station- General
Commission for Scientific Agriculture Research on the trees age of
13 in grafted with Golden Delicious Cultivar on three rootstocks
(seedless rootstock Malus domestica, vegetative strong
rootstock
MM109, and MM111 half strong rootstock) over the years
(2014.2015 ).The study focused on growth vigor (the stem
circumference above the grafted area ,crown size - the rate of
shoots length and productivity).
This research work aimed to study the effect of different mixtures of growing media
on pepper seedlings and their ability to withstand transplanting shock.The variety QarnAlgazal
of pepper and five mixtures of growing media were used.The mixtures i
ncluded bitmoss
alone,bitmoss with equal volume of soil or sand,soil and cow manure in a ratio of
1:2,and cow manure with soil and sand in a ratio of 1:1:1.
The experiments were implemented in aplastic green house without heating in the
nursery farm of the faculty of Agriculture,Tishreen University.The completely randomizel
design was adopted with three replications for each treatment and 15 plants for each replication.
The results showed that themedia containing cow manurewere the more effective ingrowth
of sapling as represteded by the increased hieght of sapling, number and area of
leafs,fresh weight of both biomass and roots of sapling.The effect was very clear in the
media containing cow manure and soil in the ratio of 1:2.
In this study a total of /14/ fungal genera have been isolated from seeds; seedlings roots and soilsofCypress and Pine species (brutia; canary and stone) samples brought from Hinnade's nursery, and it were: Alternaria; Rhizoctoni; Fusarium; Chaetomiu
m; Mucor; Phythophtora; Rhizopus; Aspergillus; Penicillium; Cladosporium; Saccharomyces; Sordaria; Pytiumand Trichoderma. The first 12 genera were isolated from seeds. Alternaria andFusarium appeared on alldifferent types of plants with the highest frequency of the first genus 23.3% and 36.6% of the second one on cypress. The first 5 genera were isolated from seedlings roots in addition to genus Pythium. And also the Genus Fusariumwas frequented on all study types with high frequencies reached to 58.5%onbrutia.The genusRhizoctoniawas not isolated from seeds and roots of Cypress while it was isolated from seeds and roots of all species of pine./7/ fungal genera were isolated from seedlings soils three of it (Alternaria,Aspergillus,Fusarium) were isolated from the soils of all species of plants with the highest percentages of the first 68.97% on cypress's soil and 22.22% of the second from stone pine and 35.13%of the genusFusarium from brutia. The highest frequency was for genus Fusarium 35.13% on brutia. The genusPythium was onlyisolated from the seeds and soils of brutia pine.
The objective of this study is to compare the effect of five different Nacl concentration (0,50,100,150,200 mM) on seeds germination and seedling growth of two cultivars of soybean (sb-44,sb-172).
Seeds were germinated in petri dishes with sterile
filter paper moistened with 10 ml of test solution at 25 c˚ in dark .
The obtained results showed that germination percentage , length of root and hypocotyl were decreased with the increase of the Nacl concentration in the medium. The best values was from cultivar sb-44 .
After seven days of incubation , significant differences were observed between control and treated seeds .
Germinated seeds were subcultured on basal Murashige and Skoog medium solid at the same Nacl concentration . The roots growth was mor affected by 200 mM Nacl compared to seedling growth .
Plantlets were transfered into pots with nutrient soil , irrigated with saline water and were adapted at laboratory . we obtained good plants grew to maturity in 10- 12 weeks .
The objective of this study is to compare the effect of five different Nacl
concentration (0,50,100,150,200 mM) on seeds germination and seedling growth of two
cultivars of soybean (sb-44,sb-172).
Seeds were germinated in petri dishes with sterile
filter paper moistened with 10 ml
of test solution at 25 c˚ in dark .
The obtained results showed that germination percentage , length of root and
hypocotyl were decreased with the increase of the Nacl concentration in the medium. The
best values was from cultivar sb-44 .
After seven days of incubation , significant differences were observed between
control and treated seeds .
Germinated seeds were subcultured on basal Murashige and Skoog medium solid at
the same Nacl concentration . The roots growth was mor affected by 200 mM Nacl
compared to seedling growth .
Plantlets were transfered into pots with nutrient soil , irrigated with saline water and
were adapted at laboratory . we obtained good plants grew to maturity in 10- 12 weeks .
The present investigation was carried out at the Agricultural Scientific
Research Center in Swieda to study the effect of deficit irrigation on the growth
of four apple seedlings rootstocks genotypes and to estimate their ability to
drought tolera
nce particularly in light of the lack of water sources and no rain.
Two irrigation levels: 100% (control) and 75% of water requirements were
applied. The shoot length, leaves number, leaves area, the distribution of the
roots in soil, the depth of irrigation water in the soil and the consumption of
water in each level were measured. Results showed that irrigation with 75% of
field capacity on studied genotypes caused reduction of shoots length, decline of
leaves number and area and the depth of root comparing with the control.
There were significant differences between studied genotypes in terms of vigor
where the genotypes C and S2 were superior than A and B.
The effect of applying polyacrylamide polymer on soil crusting, seedling
emergence, infiltration and runoff rates were studied on gypsiferous soils
collected from the Euphrate Basin in Syria The boxes were exposed to the
rainfall 45.48 mm/h using
a rainfall simulator. Total runoff and infiltration
measurements for all boxes were recorded. The boxes were then transferred to
a temperature-controlled room (25±2 °C) for drying. Soil moisture content and
crust strength were measured periodically until 90% water loss was recorded
in the soil. Seedling emergence was also counted daily.
