scholarly journals Genotypic performance, character correlations and path analysis of pod yield in Abelmoschus caillei (A. Chev.) Stevels

2012 ◽  
Vol 7 (4) ◽  
pp. 44 ◽  
Author(s):  
Christopher O. Alake ◽  
Omolayo J. Ariyo ◽  
Moninuola A. Ayo-Vaughan
Keyword(s):  
Path Analysis ◽  
Pod Yield ◽  
Performance Character ◽  
Character Correlations

Plant character correlations and path analysis of pod yield in okra (Abelmoschus esculentus)

Euphytica ◽  
1987 ◽  
Vol 36 (2) ◽  
pp. 677-686 ◽  
Author(s):  
O. J. Ariyo ◽  
M. E. Aken'ova ◽  
C. A. Fatokun
Keyword(s):  
Path Analysis ◽  
Abelmoschus Esculentus ◽  
Plant Character ◽  
Pod Yield ◽  
Character Correlations

Study of genetic variability, character association, path analysis and selection parameters for heterotic recombinant inbred lines of garden peas (Pisum sativum var. Hortense L.) under mid-hill conditions of Himachal Pradesh, India

2015 ◽  
Author(s):  
Viveka Katoch ◽  
Prem Singh ◽  
Mayanglambam Bilashini Devi ◽  
Akhilesh Sharma ◽  
G. D. Sharma ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Path Analysis ◽  
Plant Height ◽  
Yield Potential ◽  
Genetic Advance ◽  
Recombinant Inbreds ◽  
Pod Yield ◽  
Positive Direct ◽  
L 14 ◽  
Pod Length

The present investigations involving forty five diverse pea recombinant inbreds and three standard checks were carried out for two successive years during 2011-2012 and 2012-13. The objective of the study was to ascertain genetic variability, heritability, genetic advance, correlation and path coefficient among yield and other horticultural and quality traits and identification of superior recombinants for their utilization in crop improvement programme. Wide range of variability was observed for most of the characters under study. The magnitude of phenotypic coefficient of variation (PCV) was higher than the genotypic coefficient of variability (GCV) for all the traits. High phenotypic and genotypic coefficient of variations were recorded for protein content, ascorbic acid, plant height and pod yield per plant for both the years. Pod yield per plant and plant height exhibited high heritability associated with high genetic advance in the respective years indicating the additive gene action for their expression and are likely to respond better to selection. Pod yield showed a positive and significant correlation with number of pods per plant, pod length and number of seeds per pod both the years. Path analysis revealed that number of pods per plant and pod length have highest positive direct effect both the years and thus it may be treated as selection criteria for isolating higher yielding genotypes in garden peas. In heterosis study, some of the recombinant inbreds were found superior over standard checks which include L-14 and L-13 for pod yield/plant, number of pod/plant and earliness. These findings can be further utilized to develop and enhance the yield potential of garden pea.

scholarly journals Genetic Variability, Correlation and Path Analysis Studies in Cowpea [Vigna unguiculata (L.) Walp.]

2020 ◽  
Vol 7 (3) ◽  
pp. 123-128
Author(s):  
Santonu Das ◽  
◽  
C. Karak ◽  
S. Roy ◽  
◽  
...  
Keyword(s):  
Genetic Variability ◽  
Grain Yield ◽  
Path Analysis ◽  
Plant Height ◽  
Block Design ◽  
Experimental Studies ◽  
Positive Association ◽  
Grain Weight ◽  
Pod Yield ◽  
Coefficients Of Variation

The present investigation was carried out at Kalyani Simanta District Seed Farm, Kalyani, Nadia under BCKV during Pre-kharif season of 2018-19. Ten genotypes of cowpea were grown in randomized block design with three replications. The genotypes were studied for twelve characters viz, plant height at maturity, number of flower inflorescence-1, number of primary branches plant-1, leaf area, number of pods plant-1, pod weight, number of grains pod-1, pod length, biological yield plant-1, area of primary leaf, hundred grain weight and grain yield plant-1. The experimental studies revealed substantial amount of genetic variability among the genotypes under study. In general, phenotypic coefficients of variation were higher in magnitude than genotypic coefficient of variation. The characters pod yield plant-1 and plant height at maturity showed comparatively higher estimates of genotypic and phenotypic coefficients of variation indicating high level of variability and ample scope for effective improvement. The higher estimates of heritability coupled with high genetic advance as percentage of mean indicated additive gene action for the above characters. Correlation studies revealed strong positive association of pod yield plant-1, hundred grain weight with grain yield plant-1. The path analysis studies indicated that the characters number of pods plant-1 and days to first pod maturity bearing direct positive effect on grain yield, could be the selection criteria for genetic improvement of grain yield plant-1 in cowpea population under study. Thus, the genotypes PL-3, PL-5, Mousumi Laffa are observed as desirable among the population for future use in breeding programme, as these genotypes had good performance for the important quantitative traits.

scholarly journals Genetic variability, correlation and path analysis in tamarind (Tamarindus indica L.)

2020 ◽  
pp. 133-139
Author(s):  
C. Rajamanickam
Keyword(s):  
Path Analysis ◽  
Coefficient Of Variation ◽  
Fruit Weight ◽  
Path Coefficient ◽  
Phenotypic Variance ◽  
Shell Weight ◽  
Pod Yield ◽  
High Heritability ◽  
Correlation And Path Analysis ◽  
Positive Direct

The present study was conducted at the Horticultural College and Research Institute, Periyakulam with the objective to estimate the extent of genotypic and phenotypic coefficient of variation, correlation and path analysis among tamarind genotypes. A remarkable variability was observed among the tamarind collections for all the characters. In all the cases, phenotypic variance was higher than the genotypic variance. Also, phenotypic coefficient of variation was found higher than genotypic coefficient of variation for all the traits. The high heritability coupled with high genetic advance as per cent over mean was observed in the traits such as pod yield plant-1 (98.07%; 76.103%), fruit weight (89.11%; 63.668%), fibre weight (89.95%; 91.967%), shell weight (86.19%; 58.534%) and pulp weight (74.13%; 51.533%) whereas the lowest values were recorded for pod length (34.91%; 13.945%) and tree circumference (20.34%; 8.198%). Thus, it indicated better scope for improvement of these traits through selection programme. Pod yield tree-1 was significantly and positively correlated with pod width, tree circumference and pulp weight. Path coefficient analysis showed that pod yield tree-1 contributed the maximum positive direct effect.

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.

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