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Register a new userHeterosis, potence ratio, phenotypic correlation and path coefficient analysis for grain yield and it's components in barley (Hordeumvulgare L. )
قوة الهجين و درجة السيادة و معاملي الارتباط و المرور للغلة الحبية و بعض مكوناتها في الشعير (Hordeum vulgare L.)
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Damascus University ورقة بحثية
Publication date
2014
fields
Field Crops
and research's language is
العربية
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نفِّذ التهجين نصف التبادلي بين ستة طرز وراثية متنوعة من الشعير في محطة بحوث قرحتا التابعة للهيئة العامة للبحوث العلمية الزراعية في الموسـمين الـزراعيين (2010/2011) و (2011/2012) بهدف تقدير قوة الهجين و درجة السيادة و معاملي الارتباط المظهري و المرور لعدد مـن الـصفات (عـدد السنابل في النبات، عدد الحبوب/النبات، عـدد الحبـوب/ الـسنبلة، الغلـة الحيويـة/ النبـات، و الغلـة الحبية/النبات). إذ تراوحت قيم قوة الهجين لصفة الغلة الحبيـة مـن 52.89) %-6303-S×6669-T( (L-6711×S-6689) %-49.94 ـن وم)، Arabi abiad mohsan×S-6689) %16.99 إلــى إلى35.1) %- 6689-S × mohsan abiad Arabi (قياساً لمتوسط الأبـوين و الأب الأفـضل علـى الترتيب. و تراوحت قيم درجة السيادة من 14.1 لصفة عدد السنابل في النبات إلـى 50.3 لـصفة الغلـة الحيوية، مما يبين سيطرة الفعل المورثي اللاتراكمي على سلوك جميع الصفات المدروسة. ارتبطت صفة الغلة الحبية ارتباطاً إيجابياً ومعنوياً مع كل من صفات عدد السنابل في النبات ( 289.0 ،(وعدد الحبـوب في النبات (832.0 ،( وعدد الحبوب في السنبلة (587.0 ،(و الغلة الحيوية (708.0 ،(و أشارت نتائج تحليل المسار أن صفة عدد الحبوب في النبات كانت أكثر الصفات مساهمةً في تباين الغلّة.
A half diallel set of crosses among six highly diverse barley (Hordeum vulgare L.) genotypes were evaluated at Karahta Research Station, General Commission of Scientific Agricultural Research (GCSAR), during 2010-2011 and 2011-2012 seasons to study heterosis, potence ratio, correlations among traits and path coefficient analysis for number of spikes per plant, number of grains per plant, number of grains per spike, biological yield ,and grain yield per plant. Heterosis effects for seed yield ranged from%-89.52 (T-6669×S-6303) to%16.99 (Arabi abiad mohsan×S-6689) and from%-49.94 (L-6711×S-6689) to %-1. 35 (Arabi abiad mohsan×S-6689) relative to mid and better parents respectively. Potence ratio values ranged from 1.14 (number of spikes per plant) to 3.50 (biological weight) indicating that non-additive gene action was more important in controlling all studied traits. Correlation coefficients among traits indicated that seed yield was positively and significantly associated with each of number of spikes per plant (0.289), number of grains per plant (0.832), number of grains per spike (0.587), and biological yield (0.708) traits. Path coefficient analysis indicated that number of grains per plant trait had high positive direct effects on grain yield.
References used
Al-Shalaldeh, G and M. A. Duwayri. 1986. Inheritance of morpho-physiological characters and grain yield in durum wheat crosses. Rachis, 5(1): 37-41
Bouzerzour, H. and A. Djakoune. 1997. Inheritance of grain yield and grain yield components in barley. Rachis, 16(1/2): 9-16
Dewey, J.R. and K. H. Lu . 1959. Correlation and path coefficient analysis of components of crested wheat grass seed production. Agron. J. 51:515-518
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The present investigation was undertaken to estimate phenotypic
correlation and path coefficient analysis for grain yield and its components in
maize. Four local genotypes of yellow maize were evaluated in 2008 and 2009
growing seasons at two loca
tions i.e. Damascus and Dir Al-Zor under three
nitrogen fertilization levels (130, 195 and 260 of N. ha-1), The nitrogen fertilizer
was applied at two splits. Split split plot design was used with 4 replications.
Results of phenotypic correlation values showed that grain yield at Damascus
location was positively and significantly associated with ear height (r= 0.204**),
ear length (r= 0.205**) and number of rows per ear (r= 0.228**). On the other
hand, grain yield at Dir Al-Zor location was positively and significantly
associated with all studied traits at combined data whereas, it was positively
and significantly associated with ear length at three levels and combined data
(0.305*, 0.410**, 0.347** and 0.375**, respectively). The data of path coefficient
analysis showed that ear length, ear height and number of rows per ear had
positive direct effects on grain yield variation and thus grain yield
improvement can be achieved through selection for ear length and ear height at
Damascus location (11.06%). On the other side, data showed that each of ear
height, number of kernels per row and 100-kernel weight had positive direct
effects on grain yield variation (32.98%) and thus, 100-kernel weight can be
considered as selection criteria may lead to the improvement of grain yield in
yellow maize at Dir Al-Zor location.
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. .
This study was carried out during 2010-2011 growing seasons at the
Maize Researches Department (G.C.S.A.R.) Damascus. To estimate
heterosis for number of rows per ear, ear length, ear diameter, 100- kernel
weight, and grain yield.
The experiment was carried out at two planting dates in a Randomized
Complete Blocks Design with three replications at Maize Research Department,
General Commission for Scientific Agriculture Researches (G.C.S.A.R.)
Damascus, Syria, during two cro
pping season 2011 and 2012 to study the
phenotypic and genotypic coefficients of variation, heritability, genetic advance,
phenotypic correlation and path coefficient analysis for grain yield per plant,
its components and the height of plant and ear of two maize hybrids (IL.292-06
× IL.565-06, IL.459-06 × IL.362-06).
This study was carried out in cooperation between the Faculty of
Agriculture, Damascus University and the General Commission for Scientific
Agricultural Research (GCSAR) in Karahta station of field crops researches
during two growing seasons (2003
-04 & 2004-05).
Four local improved barley lines and cultivars (female parents) were
crossed with five exotic lines and cultivars (male parents) using line × tester
method. The crosses were grown along with their parents in a randomized
complete block design (RCBD) with three replications to estimate general
combining ability (GCA), specific combining ability(SCA) and both mid and
high parent heterosis for number of spikes per plant, number of grains per
spike, thousand kernel weight, and grain yield per plant.
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