scholarly journals Variation and path coefficient analysis of important agronomic traits in two- and six-rowed recombinant inbred lines of barley (Hordeum vulgare L.)

2012 ◽  
Vol 41 (Special Issue) ◽  
pp. 246-250 ◽  
Author(s):  
F. Shahinnia ◽  
A.M. Rezai ◽  
B.E. Sayed Tabatabaei
Keyword(s):  
Hordeum Vulgare ◽  
Full Text ◽  
Recombinant Inbred ◽  
Agronomic Traits ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Path Coefficient ◽  
Path Coefficient Analysis ◽  
Hordeum Vulgare L

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scholarly journals ​Character Association and Path Analysis in Heterotic Recombinant Inbred Lines in Garden Pea (Pisum sativum L.)

2021 ◽  
Author(s):  
Bhupinder Singh Thakur ◽  
Alisha Thakur ◽  
Devinder Kumar Mehta ◽  
R.K. Dogra ◽  
Sandeep Kansal
Keyword(s):  
Path Analysis ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Correlation Coefficients ◽  
Inbred Lines ◽  
Path Coefficient ◽  
Path Coefficient Analysis ◽  
Garden Pea ◽  
Pod Yield ◽  
Positive Direct

Background: Garden pea is one of the principal vegetable crops cultivated in the temperate and sub- tropical areas of the world for its green pods. It is an important food legume worldwide after Phaseolus vulgaris. The knowledge about the interdependence of characters in a particular crop can effectively be employed to breed desirable cultivars and to challenge the consequences of the unprecedented biological, physical and chemical stresses of the future growing conditions. The regression and path analysis further has significance for the assured selection of the varieties with desirable traits and hence adaptation of species in different agro-climatic conditions; hence it is also one of the prerequisites for crop improvement programmes. Correlation and path analysis in garden pea explained that among all the yield contributing traits, number of pods per plant and pod weight have significant contribution in increasing the green pod yield per plant. Methods: 14 heterotic recombinant inbred lines and 17 existing cultivars of garden pea, were put to experimentation for working out the association of the yield and yield contributing component characters under the open field conditions of Regional Horticultural Research and Training Station, Bajaura Kullu, Himachal Pradesh, India. This association was further elaborated through the coefficient of correlation and regression analysis and path coefficient analysis. Result: The genotypic correlation coefficients were found higher than the phenotypic correlation coefficients for all the characters studied. The correlation coefficients revealed that green pod yield per plant had highly significant and positive association with pod weight and number of pods per plant. The path coefficient analysis also revealed that the maximum positive direct effect on green pod yield per plant was exerted by the number of pods per plant, pod weight and 100-seed weight. Through regression equation analysis it became clear that number of pods per plant, pod weight contributed significantly in increasing the green pod yield per plant. With a unit increase in these independent characters, the green pod yield per plant will increase by 2.34 and 33.45 per cent. It can thus be concluded that despite of the positive correlation of almost all the characters with green pod yield per plant, only number of pods per plant and pod weight are important and significant independent characters for increasing the green pod yield per plant.

QTL analysis of agronomic traits in recombinant inbred lines of sunflower under partial irrigation

2011 ◽  
Vol 5 (2) ◽  
pp. 135-146 ◽  
Author(s):  
P. Haddadi ◽  
B. Yazdi-samadi ◽  
M. R. Naghavi ◽  
A. Kalantari ◽  
P. Maury ◽  
...  
Keyword(s):  
Qtl Analysis ◽  
Recombinant Inbred ◽  
Agronomic Traits ◽  
Recombinant Inbred Lines ◽  
Inbred Lines

Construction of a genetic map of barley (Hordeum vulgare L.) cross 'Azumamugi' × 'Kanto Nakate Gold' using a simple and efficient amplified fragment-length polymorphism system

Genome ◽  
2001 ◽  
Vol 44 (2) ◽  
pp. 284-292 ◽  
Author(s):  
Y Mano ◽  
S Kawasaki ◽  
F Takaiwa ◽  
T Komatsuda
Keyword(s):  
Hordeum Vulgare ◽  
Length Polymorphism ◽  
Fragment Length ◽  
Recombinant Inbred ◽  
Fragment Length Polymorphism ◽  
Recombinant Inbred Lines ◽  
Amplified Fragment Length Polymorphism ◽  
Buffer System ◽  
Hordeum Vulgare L ◽  
Sequence Tagged Sites

We have devised a simple and efficient amplified fragment-length polymorphism (AFLP) system consisting of small slab gels, a discontinuous buffer system, and silver staining. Using this system, a single worker developed a barley map with 227 polymorphic fragments in 2 months. As a mapping population, 99 recombinant inbred lines of barley cultivars 'Azumamugi' × 'Kanto Nakate Gold' were used. Most of the 227 AFLP fragments showed a Mendelian segregation ratio of 1:1, and all were assigned to the seven barley chromosomes. Thus, these fragments are useful as molecular markers. They were integrated with 40 previously characterized sequence-tagged sites, 3 isozymes, and 2 morphological markers to construct an integrated map. The resulting map covered 925.6 cM with 272 markers (detecting 150 loci) at an average interval of 6.5 cM/locus. This system greatly simplifies map construction.Key words: amplified fragment length polymorphism (AFLP), Hordeum vulgare, linkage map, recombinant inbred line (RIL), sequence-tagged site (STS).

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