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Register a new userPath Coefficient Analysis and Relative Importance of Some Fodder Yield Components in Pearl millet [Pennisetum glaucum (L.) R. Br.]
تحليل المسار و الأهمية النسبية لبعض مكونات الغلّة العلفية في محصول الدخن اللؤلؤي [.Pennisetum glaucum (L.) R. Br]
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المجلة السورية للبحوث الزراعية ورقة بحثية
Publication date
2017
fields
Field Crops
and research's language is
العربية
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نفّذت الدراسة في محطة خرابو، التابعة لإدارة بحوث المحاصيل، الهيئة العامة للبحوث العلمية الزراعية، قرب دمشق، خلال الموسمين 2011 و 2012، بهدف دراسة معامل الارتباط المظهري، و تحليل المسار، لبعض الصفات الشكليّة، و المكوّنة للإنتاج العلفي الأخضر ]عدد الأيام حتى الإزهار (يوم)، و ارتفاع النبات (سم)، و عدد الأوراق في النبات، و عدد الإشطاءات في النبات، و الغلة من العلف الأخضر (طن/هكتار)[، لدى 15 هجيناً نتج عن التهجين نصف التبادلي ما بين ستة سلالات نقيّة من محصول الدخن اللؤلؤي، بالإضافة إلى 6 سلالات اعتبرت كآباء في عملية التهجين. نفذت التجربة وفق تصميم القطاعات الكاملة العشوائية، بثلاثة مكررات.
This study was carried out at Kharabu Station, General Commission for Scientific Agricultural Research (GCSAR), during the growing seasons 2011 and 2012, to estimate phenotypic correlation, and path coefficient of some morphological and green fodder yield components (days to flowering, plant height (cm), number of leaves per plant, number of tillers per plant, and green fodder yield (ton/ha)). Fifteen pearl millet crosses resulted from half diallel mating system between six inbred lines. The experiment was arranged in a randomized complete block design (RCBD), with three replications.
References used
Abuelgasim, E.H. (1999). Pearl Millet breeding and improvement programme in Sudan. A paper presented in the monthly scientific forum October 1999, Ministry of Agric. and Fores., Khartoum
Akash, M.W.; and H.M. Saoub (2002). Grain yield of three sorghum varieties as influenced by seeding rate and cutting frequency. Pak. J. of Agron., 1 (2-3): 101-104
Akromah, R.; D. Afribeh; and M.S. Abdulai (2008). Genetic variation and trait correlations in a bird resistant pearl millet landrace population. African J. Biotech., (7):1847-1850
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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. .
This study was carried out at Karahta Station of Field Crop
Research, General Commission of Agricultural Scientific Researches
during 2010-2011 and 2011-2012 cropping seasons in order to determine the
phenotypic correlation coefficient between the traits and the path coefficients
analysis for the most affected traits in grain yield.
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.
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 stud
y 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.
The present investigation was conducted during 2010/2011 and 2011/2012
growing seasons at Karahta station for field crops research, General
Commission for Scientific Agricultural Researches (G.C.S.A.R.), Syria. Forty
five hybrids F1 produced using
a half diallel cross among ten bread wheat
(Triticum aestivum L.) genotypes, in 2010/2011 season, were evaluated during
2011/2012 season in order to study som of the genetic parameters for grain
yield per plant, its components, some morphophysiological and quality traits to
determine the basic criteria for selection.
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