Genetic Variability, Character Association and Path Coefficient Study in Guava (Psidium guajava L.) for Plant growth, Floral and Yield Attributes

2015 ◽  
Vol 6 (4) ◽  
pp. 457 ◽  
Author(s):  
R. K. Patel ◽  
C. S. Maiti ◽  
Bidyut C. Deka ◽  
V. K. Vermav ◽  
N. A. Deshmukh ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Plant Growth ◽  
Psidium Guajava ◽  
Path Coefficient ◽  
Yield Attributes ◽  
Character Association

scholarly journals Variability And Character Association Of Reproductive Traits In Exotic Rice Germplasm

1970 ◽  
Vol 23 (1) ◽  
pp. 39-44
Author(s):  
T Akhter ◽  
NA Ivy ◽  
MG Rasul ◽  
MAK Mian
Keyword(s):  
Genetic Variability ◽  
Reproductive Traits ◽  
Positive Association ◽  
Pollen Sterility ◽  
Path Coefficient ◽  
Phenotypic Variance ◽  
Significant Positive Association ◽  
Rice Germplasm ◽  
Character Association ◽  
High Heritability

Fifty two genotypes were evaluated to find out the genetic variability, character association, and path coefficient for reproductive traits of exotic rice germplasm in experimental field of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur during December 2008 to May 2009. The analysis of variance showed significant variation for all the characters indicating wide genetic variability among the genotypes. The highest genotypic variance and phenotypic variance were found for pollen sterility and filled grains per panicle. High heritability and genetic advance were recorded for pollen sterility. Filled grains per panicle, days to 50% flowering, and pollen sterility of different genotypes had a high degree of significant positive association with grain yield per hill. On the basis of genetic parameters, associations and path analysis 52 genotypes might be selected considering the filled grains per panicle only.   Key words: Variability; correlation coefficient; path coefficient; exotic rice DOI: http://dx.doi.org/10.3329/bjpbg.v23i1.9316 BJPBG 2010; 23(1): 39-44

scholarly journals Assessment of genetic variability, character association and path coefficient in sesame (Sesamum indicum L.)

2020 ◽  
Vol 8 (6) ◽  
pp. 2357-2361
Author(s):  
Deepak Gupta ◽  
Suresh Muralia ◽  
Vikas Khandelwal ◽  
Anju Nehra ◽  
MK Meena
Keyword(s):  
Genetic Variability ◽  
Sesamum Indicum ◽  
Path Coefficient ◽  
Character Association

scholarly journals Morphological Characterization and Assessment of Genetic Variability, Character Association, and Divergence in Soybean Mutants

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
M. A. Malek ◽  
Mohd Y. Rafii ◽  
Most. Shahida Sharmin Afroz ◽  
Ujjal Kumar Nath ◽  
M. Monjurul Alam Mondal
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Morphological Traits ◽  
Environmental Influence ◽  
Crop Improvement ◽  
Phenotypic Selection ◽  
Morphological Characterization ◽  
Branch Number ◽  
Yield Attributes ◽  
Character Association

Genetic diversity is important for crop improvement. An experiment was conducted during 2011 to study genetic variability, character association, and genetic diversity among 27 soybean mutants and four mother genotypes. Analysis of variance revealed significant differences among the mutants and mothers for nine morphological traits. Eighteen mutants performed superiorly to their mothers in respect to seed yield and some morphological traits including yield attributes. Narrow differences between phenotypic and genotypic coefficients of variation (PCV and GCV) for most of the characters revealed less environmental influence on their expression. High values of heritability and genetic advance with high GCV for branch number, plant height, pod number, and seed weight can be considered as favorable attributes for soybean improvement through phenotypic selection and high expected genetic gain can be achieved. Pod and seed number and maturity period appeared to be the first order traits for higher yield and priority should be given in selection due to their strong associations and high magnitudes of direct effects on yield. Cluster analysis grouped 31 genotypes into five groups at the coefficient value of 235. The mutants/genotypes from cluster I and cluster II could be used for hybridization program with the mutants of clusters IV and V in order to develop high yielding mutant-derived soybean varieties for further improvement.

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