The experiment was conducted at the Research Station of Middle Heights,
during 2014 and 2015 seasons. Three varieties of Quinoa were used i.e. Ames
13762, NSL 106398 and Ames 137, which were introduced from International
Center for Bio Saline Agri
culture (ICBA), and they were selected out of five
varieties that were grown as observation lines in 2013, to get one variety, high
forage and grain yields, also suitable for the local conditions. RCBD design
with four replications was used. The traits that were studied were: Earliness,
plant height, flowering at 50%, green forage, grain and dry matter yields.
Results indicated that there were highly significant (p≤0.01) differences
between seasons and varieties in respect to plant height, green forage, dry
matter and grain yields. While, no significant effect for the interaction between
varieties and seasons overall growth performances.
The research was carried out at Tal Hedya Research Center in Aleppo, General
Commission for Agriculture Scientific Research (GCSAR), Syria, during 2011
and 2012 seasons. Seven genotypes of cotton were used, and complete diallel
hybridization was m
ade to study general and specific combining ability of some
productivity traits (sympodial branch number, actual boll number and seed cotton
yield). General combining ability (GCA) indicated that the parental genotype
Cherpan432 had a high significant GCA for sympodial branch number and actual
boll number, but the parents Aleppo118 and Deir El-Zour22 had the high GCA for
seed cotton yield. This is a clear indication that these parental genotypes had the
largest number of additive genes action, which plays important role in the inheritance
of the above-mentioned traits. The estimation of SCA values showed favorite and
high significant values in many hybrids resulted from parents, which had highly
significant GCA, which means that the gene action type is (additive x additive), and
this refers that these hybrids possessing the largest number of additive genes. High
heritability broad sense refers to importance of genetic variance in the inheritance of
all characters, but heritability in narrow sense values were low in general, indicating
the importance of dominance and epistasis genes in the inheritance. According to
this result it is recommended to follow the cross method for improvement of the
studied traits.
This study was carried out through the cooperation between the Faculty of
Agriculture Tishreen University and the General Commission of Agricultural Scientific
Researches in Hama during 2013 and 2014 successive seasons.
Eight soft wheat(Triticumae
stivum)genotypes were crossed using half diallel method
.The(28) crosses were grown along with their parents in randomized complete block with
three replications to estimate general combiningability , specific combining ability, and
both mid and high parent heterosis for number of spikes /plant , number of grains /spike ,
thousand grain weight and grain yield.
The results indicated that both additive and non- additive types of gene action were
important in the inheritance of traits under study with preponderance of additive gene
effects for number of grains /spike and thousand grain weight,Non – additive gene effects
were pronounced in the inheritance of number of spikes /plant and grain yield.
High general combiners for thesecharacters were obtained and the most important
parents were: Bohouth 4- Douma 44828-Acsad1115- Golan2.
Many positive specific combiners having both mid and high parent heterosis and
derived from positive general combiners were obtained such as(Golan2×Cham10) –
(Acsad1115×Douma4)(Douma44828×Golan2) and (Douma 2×Golan2).
Results also indicated that some hybrids: (Douma44828×Golan2) (Bohouth6×Douma4)
(Douma44828×Cham10) (Douma2×Acsad1115) had heterosis compared to higher parent
for number of spikes /plant , number of grains / spike , Thousand grain weight and grain
yield..
تقدير بعض المعايير الوراثية لأهم الصفات الإنتاجية ومكوناتها وأثرها في التحسين الوراثي للقمح القاسي(Triticum durum L )
This research was carried out using a total of 60 one-day old chicks from
hybrid broiler (Hubbard). Opened house system was used for rearing on floor
pens. The chicks divided randomly into three equal groups. The first group
considered as a contro
l which was fed on a ration without supplementation of
Garlic Powder (0.0%). while the second and third were fed on a ration
supplemented with Garlic Powder by (0.5%) & (1%) respectively. All
treatments were applied beginning from one-day chicks old up to sixth week of
age. The results showed that the supplementation of Garlic Powder (0.5%) and
(1%) led to improve broiler performance: significantly increase (P<0.05) was
noticed in final live body weight 5.12 % and 3.54%; weight gain 5.26 % and
3.62% respectively comparing with control, improve feed efficiency 7.57% and
8.86%, decrease feed consumption 2.69% and 5.54%.
تاثير مستويات مختلفة من الملوحة في بعض الصفات الإنتاجية والتكنولوجية لمحصول الشوندر السكري تحت ظروف محافظة دير الزور
