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Register a new userدراسة السلوكية الوراثية لبعض أصناف القمح الطري تحت الظروف المحلية
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Tishreen University رسالة ماجستير
Publication date
2014
fields
Agricultural Engineering
and research's language is
العربية
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يشكل القمح أساس نشأة الحضارات القديمة مثل الحضارة المصرية حضارة بلاد الرافدين وحضارتي بابل واشور ويعد القمح المحصول الغذائي الأول في كافة انحاء العالم
No English abstract
References used
عثمان محمد رضا (1981) قواعد وأسس تربية البنات كلية الزراعة جامعة تشرين . سوريا ص 8
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The research was conducted in Dabba site for Agricultural Scientific Research at Lattakia region in the growing season 2011 during the period from early June to mid-October. The experiment included four cultivars of peanut (ICGV 92022, C16 local 262,
Souri, Al-Baladi), three row spacing (40, 60, 80 cm), and two levels of number of plants per hole-1 (one plant per hole-1, two plants per hole-1). The experiment was designed by using split-split plot design with three replications.
The results of the study showed that Al-Baladi variety was superior to all other cultivars in weight pods/plant (108.8 g), weight seeds/plant (56.8 g), weight 1000 seed (914.7 g) with yield of seeds reaching (3529 kg/h). On the other hand, ICGV 92022 was superior in number of mature pods (29.22 mature pod), in number of seeds/plant (53.90 seed) and in yield (3058 kg/h). Regarding the effect of row spacing, the spacing 80 cm between rows had given the highest values significantly for yield attributes in comparison with row spacing 40 and 60 cm. Yet the highest yield per unit area obtained with row spacing was 40 cm. As about the effect of number of plants per hole-1, two plants hole-1caused significant decrease in yield attributes and significant increase in seed yield in comparison with one plant hole-1
اختُبر 12 طرازا وراثياً من القمح القاسي Triticuum. durum لصفة الغلة الحبية
في ثلاثة مواقع بيئية متباينة خلال موسمي 2013-2014 , 2014-2015
بثلاثة معدلات بذار ( 150, 200 ,250 ) كغ/ ه و تضمنت المادة الوراثية 7 سلالات
مبشرة و خمسة شواهد تمثل أصناف ا
لقمح القاسي المحلية لمنطقتي الاستقرار الأولى
و الثانية. صممت التجربة وفق تصميم القطاعات الكاملة العشوائية في ثلاثة مكررات,
حللت البيانات و تمت المقارنة وفق اختبار أقل فرق معنوي LSD عند مستوى دلالة 5%.
Eleven genotypes of Bread Wheat (Triticum aestivum L.) were tested at three diverse
locations in the Syrian Coast during the 2015-2016 season under rain-fed conditions to
assess these genotypes and to study the Genotypes x Environments Interactions
, and yield
stability across environments using 5 statistical measures of stability:{ X¯i, bi, and i
according to Eberhart and Russell (1966), Stability Variance Index (2
i) according to
Wricke and Weber (1980), Ecovalance Stability Index (Wi) according to Wricke (1962)}.
Genetic material included 5 promising lines and 6 local varieties (provided by ACSAD and
GCSAR).The experiment was designed using randomized complete block design with
three replications, statistical data analysis was done, and least significant difference
(L.S.D) test at 5% was applied for comparison of means. Significant differences were
observed among bread wheat genotypes for grain yield (ton/ha), combined analysis of
variance of grain yield across the three environments showed significant mean squares due
to genotypes, environments and genotypes x environments interaction, suggesting
differential responses of genotypes across studied environments and validity of stability
analysis.
Stability analysis for grain yield revealed that; the promising line ACSAD-1147 and
Doma6 were more stable than other genotypes. Due to they had superior ranks for both
average yield over environments and yield stability, which reveals the importance of these
genotypes to reach varieties that combine relatively high yield and better stability in any
future breeding programs.
A half diallel set of crosses among six inbred lines of maize were evaluated at the
Maize Research Department (G.C.S.A.R.) in Damascus Governorate during 2010 and 2011
growing seasons to estimate heterosis and combining ability components for the n
umber of
rows per ear, number of kernels per ear, ear length (cm), ear diameter(cm), 100-kernel
weight (g), and grain yield (ton /hec).
The inbred lines, crosses, general combining ability (GCA) and specific combining
ability (SCA) mean squares were highly significant for all the studied traits, showing the
existence of a genetic variance among lines.
The ratios of GCA to SCA detected for the studied traits showed the dominance of an
additive gene action for all the studied traits except for 100-kernel weight and grain yield
which showed the predominance of a non-additive gene action.
The heterosis percentage for the studied traits was significant based on mid and
better parents.
The GCA effects showed that the lines CML.317, CML.371, CML.373 and
CML.367 were good general combiners for grain yield, while the SCA effects showed that
seven hybrids were the best F1 cross combinations such as (CML.317×CML.371) for grain
yield.
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.
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