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 .
Isoflavones occurring in soybean seed have a positive effect on the health of
humans, especially in cancer prevention. This positive impact may be a result of their antioxidant
properties, estrogenic activity, or a combination of both mechanisms.
The purpose of this study was to quantify and compare levels of three major isoflavones in soybean seeds
from three sources (Alghab area, Faculty of Agriculture, imported from China).
The aime of this study was to isolate and identify the seed borne fungi of two
varieties of Soybean, Sb172 and Sb44, using blotter method and P.D.A plate method.
21 species belong 10 genus were determined, saprophyte and pathogen Fungi.
P.D.A plat
e method showed the highest number of fungi in comparison with the
other method, and the fungus Aspergillus was the most frequent genus with a ratio of
44.2% for the variety sb172 and 45.14% for the variety sb44, followed by the fungus
Cladosporium and then Fusarium, whereas the genus Colletotrichum showed the lowest
frequent ratio (0.85%) with the variety Sb172.
The percentages of seeds germination and infection were differed between the two
varieties, and the ratio seeds germination of variety sb172 were higher than the variety
sb44 with the both methods of culture, and were equal 94% with prim variety and 92%
with the second ones by blotter method, whereas the ratio were 52% and 34% for both
varieties respectively by P.D.A plate method. However, the ratio of infection were, in
general, lower with prim variety than the second ones by the both method.
The results showed the seeds which were highest ratio infection appeared low ratio
germination .
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 research isto study the in vitro effect of some plant hormones
(growth regulators) BAP,NAA, 2,4-D, and genotype on callus and bud formation from
embryonic axes of two Soybean cultivar seeds (sb-44, sb-172).
The embryonic axes
were cultured on MS basal medium and MS supplemented with
1, 2, 3 mg/l BAP alone and in combination with 0.5 mg/l NAA.The cultures were
maintained at 25 C°±1 with photoperiod of 16 hours light (2000-2500 lux) and 8 hours
dark.The highest percentage92.5% and mean average 4.63 of callus formation were
recorded on MS medium containing BAP (3 mg/l) and NAA (0.5 mg/l).
The highest percentage 67.5% and average 3.38 of buds formation were obtained on
MS medium supplemented 1 mg/l BAP and 0.5 mg/l NAA in cultivar sb-44.
The percentage of callus formation increased, while the percentage of bud formation
decreased with each increase in BAP concentration when used alone. A positive increase
was observed in all mediums in the combination of 0.5 mg/l NAA or 0.5 mg/l 2. 4-D in the
two cultivars used in this study.
This study showed the genotypic difference effect on callus and bud formation.Roots
were formed from allplantlets cultured on MS medium without plant hormones.Rooted
plantlets were transferred into pots with nutrient soil, irrigated with water, and adapted
tolaboratory conditions. Good plants grown to maturity were obtained in 12-13 weeks.
The present study was conducted at the First of May Station belongs to the
General Commission For Scientific Agricultural Research (GCSAR) at
Damascus during 2011 and 2012 growing seasons to estimate gene action,
heritability, genotypic and phenot
ypic coefficient variations (GCV, PCV) and
genetic advance for two crosses of soybean. The five population (P1, P2, F1, F2,
F3) of each cross were grown in a randomized complete block design (RCBD)
with three replications in order to evaluate oil and protein contents and seed
yield traits. Results of mean square analysis showed significant differences
(p<0.05) among mean values of the five populations for all studied traits
between the populations of each cross. The second cross achieved high broad
and narrow sense heritability (66%, 44%) for protein content, high value of
phenotypic and genotypic variations in seed yield in the second cross achieved
(18.03,17.30) and high value of expected genetic advance was obtained 11.09%.
In most traits, epistasis of the dominance × dominance type of gene action
occupied the first rank in order of importance in controlling inheritance of the
evaluate traits in both crosses indicating the importance of selection in late
segregating generations to improve these traits. These findings are supported
by high values of heritability, which was related with low to moderate expected
genetic advance in two crosses.
This study aimed at checking the stability of some mutant lines from
soybean varieties in different locations and to select the best performing lines in
each location.
These lines 15 were selected according to previous experiments as being
early
maturing and/or that yield higher than the control. The study lasted three
years, the experiment plants were grown in 3 locations: Raqa, Idleb and
Lattakia. The experiment was designed as RCBD with 3 replicates for each
variety.
Results showed significant difference between lines, Locations and year in
both earliness and yield, A significant interaction was realized between (line X
location) and (line X year) for earliness and yield. For earliness (line X year)
was not significant. The reverse situation was realized for yield. Location. X
year of yield and earliness was significant. Earliness was correlated positively
with all characters (except for 100-seed-weight).
Yield was positively and significantly correlated with characters of all lines.
Three lines with higher yield than the control (142.61%) and same maturity
time were selected.
The research was executed within the season 2016, in the west of
HOMS in the first settlement area.
The study has showed the effect of plant density and nitrogen
fertilization was studied on the growth and productivity of soybeans
Glycine max L . (Sb44).
نفذ هذا البحث في جامعة تشرين في اللاذقية خلال الموسمين الزراعيين هما 2009 و2010 حيث عرضت بذور ثلاثة اصناف من فول الصويا
نفذت هذه الدراسة في محطة واحد أيار التابعة للهيئة العامة للبحوث العلمية الزراعية في ريف دمشق خلال موسمي 2011 و2012
