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Register a new userGenetic Analysis for Some Quantitative Traits in some populations of Faba Bean
التحليل الوراثي لبعض الصفات الكميّة في عشائر من الفول (Vicia faba L.)
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Tishreen University ورقة بحثية
Publication date
2016
fields
Field Crops
and research's language is
العربية
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Shamra Editor
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أُجريت طريقة الانتخاب المتكرر البسيط Simple Recurrent Selection على نباتات الجيل الثاني لخمس عشائر من الفول المزروع في محطة بحوث تربل (لبنان) التابعة للمركز الدولي للبحوث الزراعية في المناطق الجافة (ايكاردا)، خلال الموسم الأول (صيف 2013)، و تم تقييم الطرز الوراثية المُنتخَبة خلال الموسم الثاني (شتاء 2013-2014)، بهدف تقدير درجة التوريث بالمفهوم الضيق Narrow sense heritability و التقدم الوراثي المتوقع Genetic advance من الانتخاب خلال الأجيال الانعزالية لكلّ من صفات ارتفاع النبات، و عدد القرون على النبات، و وزن المئة بذرة، و غلة النبات الفردي. حقّقت العشيرة S2012-085 أعلى قيمة لدرجة التوريث بين العشائر المدروسة لصفات الغلة البذرية (0.5) و وزن المئة بذرة (0.5) و عدد القرون على النبات (0.5) في حين أخذت العشيرة S2012-133 أعلى قيمة لدرجة التوريث لصفة ارتفاع النبات (0.858). تراوحت قيم التقدم الوراثي المتوقع من الانتخاب لصفة الغلة البذرية من 53% إلى 72.4%، و تميّزت العشيرة S2012-085 بأعلى نسبة للتقدم الوراثي المتوقع بفعل الانتخاب لصفة الغلة البذرية (72.4%). أبدت جميع الصفات المدروسة قيماً متوسطة لدرجة التوريث بالمفهوم الضيق و المترافقة مع نسبة مرتفعة للتقدم الوراثي، ما يبّين أهميّة التباينات الوراثية التراكمية بالنسبة إلى التباينات الوراثية الكليّة، و هذه إشارة واضحة تدل على أهمية تطبيق الانتخاب المتكرر في الأجيال الانعزالية المبكرة و المتوسّطة لتحسين هذه الصفات.
Five populations of faba bean were advanced from F2 to F3 generations by simple recurrent selection at Terbol research station, International Centre for Agricultural Research in The Dry Areas (ICARDA), Lebanon. During the growing season summer 2013. The produced genotypes of selection were evaluated in winter 2013-2014 in order to estimate the narrow-sense heritability and genetic advance for seed yield, plant height, pods per plant and 100-seeds weight traits. The results showed that S2012-085 population was superior in heritability for seed yield (0.5), 100-seed weight (0.5) and pods per plant (0.5), while the population S2012-133 was recorded the supreme value for plant height (0.858). The results demonstrate that genetic advance for seed yield trait was varied from 53% to 72.4%, and the highest value of genetic advance for seed yield was belonged to the population S2012-018 (72.4%). Most of traits under research were recorded a moderate values of narrow sense heritability accompanied with high values of genetic advance, indicating to the importance of additive genetic variances related to the total genetic variances, Consequently, recurrent selection is very important to apply in order to improve the traits across segregated generations of faba bean.
References used
BOND, D. A; POULSEN. M. H. Pollination. In: The Faba Bean (Vicia faba L.), D. Hebblethwaite, 1983. 77-101
BOS.Z ; P. CALIGARI. Selection Methods in Plant Breeding – 2nd Edition, 2008, 69–76
CASLER, M. Genotype × environment interaction bias to parent-offspring regression heritability estimates. Crop Sci., 22, 1982. 540–542
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In a study conducted at Research Center of Dara'a, General Commission
for Scientific Agricultural Research during two growth seasons 2007/2008 and
2008/2009. 11 faba bean (Vicia faba L.) populations were planted in an
experiment designed randomize
d complete blocks design with three
replications. The objectives were investigation of phenotypic variance among
populations studied, to determine the relationship among number of yielded
branches plant -1, number of pods plant -1 , number of seeds pod -1, 10- green
pod weight (g) and yield of green pods plant -1 (g) using correlation and path
coefficient analysis. The combined analysis of variance showed highly
significant differences among populations under study and for all
characteristics studied, except number of yielded branches plant-1 where
differences were only significant. The correlation and path analysis studies
revealed that negative and highly significant relationship was found between
number of yielded branches plant -1 and yield of green pods plant-1, while was
positive and highly significant between yield of green pods plant-1 and 10-green
pod weight. All direct effects of components studied were negative in both
seasons, except 10-green pod weight, and these results suggested adopting the
last component as a selection index during making selection of high yielding
genotypes in faba bean populations. .
Succes of a breeding program depends, to a great extent, on understanding
the gentic behavior of the traits. This investigation was conducted to study and
examine the inheritance of some economically important characters such as:
total bolls numbe
r, actual bolls number, ginning percentage , boll weight,
harvest index, flowering earliness, maturity earliness, plant height,and fiber
fineness.
This study was carried out at Karahta station, Department of Field Ccrops
researches, General Commission for Scientific Agriculture Researches
(GCSAR), Damascus Country Side, Syria during the 2009-2010and 2010-2011
growing seasons to estimate gene
action for grain yield and its components.
Seeds of the durum wheat hybrid (Sham5 X Azgar1) were grown in three
replicates. Results indicated that the used genotypes had good variation to be
used as parents in wheat hybridization program to achieve significant genetic
advance. Mean square results showed significant differences among mean
values of the five populations for all studied traits in the hybrid and in most
traits, epistasis or dominance gene action occupied the first rank to the genetic
effects. It was suggested that selection for most studied traits in the subsequent
generations is relatively more effective than in early generations.
Half diallel set of crosses between six inbred lines of maize were executed at Maize
Research Department, General Commission for Scientific Agricultural Research
(GCSAR), Syria, during 2010 and 2011 seasons to study heterosis, general and
specific
combining ability components for grain yield (ton/ha), ear height, length and
diameter (cm), and silking date (day) compared with control varieties Basel-1 and
the hybrid Spirou S-4- 985 to identify the best hybrid in terms of yield. Randomized
Completely Block Design (RCBD) was used with three replicates.
This research was conducted at the Maize Research Department (Kharaboo) of
General Commission of Science Agriculture Research (GCSAR), Damascus, Syria,
during the growing seasons of 2009, 2010 ad, 2011 to study the genetic behavior of days
to 50%
silking, plant height, ear length, 100 grains weight and yield per plant by using
generation mean analysis (GMA) of two individual hybrids of maize, to estimate the
heritability, Phenotypic (PCV), and genotypic (GCV) coefficient variations and the
genetic advance.
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