Divergence studies of blackgram (Vigna mungo L) for selection of drought tolerant genotypes under rainfed conditions of North Western Himalayas in J and K, India

Present investigation was conducted in 31 groundnut accessions to assess genetic divergence, characters association involving 13 quantitative characters and path coefficients in order to identify superior accessions exhibiting higher genetic diversity. Number of pods/plant, secondary branches, kernel width, and pod yield displayed a higher level of coefficient of variation both at phenotypic and genotypic level. Genetic advance with higher heritability indicated preponderance of additive variance for pod length, pod yield, and number of pods/plant. Number of secondary branches, kernel width, pod length, and number of pods/plant revealed significant positive correlation with pod yield. Path coefficient analysis revealed exertion of high positive direct effects on pod yield through pod length, kernel width and number of pods/plant. Cluster analysis exhibited substantial diversity among 31 accessions forming 13 clusters. Two clusters [X (two accessions) and XII (one accession)] showed the largest distance, which suggests hybridization between these accessions to achieve high level of heterosis for further exploitation. Five accessions viz., TAG-24, TG-69, ICGV-02005, TG-73 and TG-80 were identified as the most divergent for future use.

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CORRELATION AND PATH COEFFICIENT ANALYSIS OF FOURTEEN DIFFERENT GENOTYPES OF LABLAB BEAN (Lablab purpureus L.)

Bangladesh Journal of Plant Breeding and Genetics ◽

10.3329/bjpbg.v27i1.23976 ◽

2015 ◽

Vol 27 (1) ◽

pp. 37-44

Author(s):

Asaduzzaman Zaman ◽

M. J. H. Bhuiyan ◽

M. A. Hossain ◽

Sharif-Ar Raffi

Keyword(s):

Protein Content ◽

Seed Yield ◽

Significant Negative Correlation ◽

Test Weight ◽

Path Coefficient ◽

Lablab Purpureus ◽

Pod Yield ◽

Days To Maturity ◽

Positive Direct ◽

Pod Length

Fourteen genotypes of Lablab bean were studied for sixteen yield and yield contributing characters. The experiment was conducted at Field Laboratory of Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh. Seed yield per plant showed positive and significant correlation with days to maturity, number of raceme per plant, raceme length, pod length, green pod yield per plant, green test weight and shelling percentage and significant negative correlation with days to maturity, number of seeds per pod and protein content at both phenotypic and genotypic levels. Path analysis revealed that green pod length exhibited high positive direct effect on number of raceme per plant, raceme length, green pod width, dry test weight and shelling percentage. The direct negative effects on seed yield were observed by days to maturity, number of flower buds per raceme, green pod yield per plant, green test weight and protein content and revealed the importance of these traits for simultaneous selection of plant for yield improvement.

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Genetic Characterization for Quantitative and Qualitative Traits and Its Relationship in Faba Bean (Vicia Faba L.)

Indian Journal of Agricultural Research ◽

10.18805/ijare.a-5252 ◽

2019 ◽

Author(s):

Sanket Kumar ◽

Santanu Layek ◽

Anamika Upadhyay ◽

M.K. Pandit ◽

Rajib Nath ◽

...

Keyword(s):

Plant Height ◽

Faba Bean ◽

Genetic Characterization ◽

Path Coefficient ◽

Path Coefficient Analysis ◽

Pod Yield ◽

Vicia Faba L ◽

Breeding Programmes ◽

Positive Direct ◽

Pod Length

An experiment comprising of twenty four diverse Faba bean genotypes were evaluated for genetic variability, correlation and path coefficient analysis for pod yield and its contributing traits. Phenotypic and genotypic coefficient of variation were highest for pod yield per plant (PCV= 55.87% and GCV= 53.90%). Pod yield per plant was significantly and positively correlated with plant height, number of primary branches, pod length, pod width, pod weight and number of pods per plant at genotypic level. Number of pods per plant showed the highest positive direct effect (0.845) on pod yield per plant. Days to fifty percent flowering, days to first pod picking, plant height, number of primary branches, pod width and number of pods per plant appeared as most important characters and could be considered during selection in Faba bean breeding programmes

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Selection of Drought Tolerant Maize Hybrids Using Path Coefficient Analysis and Selection Index

Pakistan Journal of Biological Sciences ◽

10.3923/pjbs.2017.132.139 ◽

2017 ◽

Vol 20 (3) ◽

pp. 132-139 ◽

Cited By ~ 2

Author(s):

Abdalla Dao ◽

Jacob Sanou ◽

Edgar V.S. Traor ◽

Vernon Gracen ◽

Eric Y. Danquah

Keyword(s):

Selection Index ◽

Path Coefficient ◽

Path Coefficient Analysis ◽

Maize Hybrids ◽

Drought Tolerant ◽

Selection Of

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VARIETAL PERFORMANCE AND CORRELATION OF OKRA POD YIELD AND YIELD COMPONENTS

Bangladesh Journal of Plant Breeding and Genetics ◽

10.3329/bjpbg.v29i1.33703 ◽

2017 ◽

Vol 29 (1) ◽

pp. 11-20

Author(s):

D. Aminu ◽

O. B. Bello ◽

B. A. Gambo ◽

A. H. Azeez ◽

J. O. Agbolade ◽

...

Keyword(s):

Plant Height ◽

Yield Components ◽

Path Coefficient ◽

Path Coefficient Analysis ◽

Fresh Weight ◽

Yield Attributes ◽

Mean Values ◽

Pod Yield ◽

Dry Seasons ◽

Pod Length

Field irrigation experiments were conducted to assess the varietal performance and correlation of pod yield and yield attributes under irrigation at the Teaching and Research Farm, University of Maiduguri, Nigeria, during 2015 and 2016 dry seasons. The results revealed that the most outstanding for fresh pod yield per plant were okra cultivar Kwadag Yar gagure Salkade and, Kwadam in descending order with yield ranging from 580.38-622.67g, while the composite cultivar had the lowest value of pod yield of 428.62g over the two years. The highest mean values for number of pods per plant and number of primary branches per plant were observed for Salkade and Yar gagure, respectively. Highest fresh pod length and fresh pod diameter were also exhibited for Salkade and Kwadag, respectively. Genotypic coefficient of variation was higher than the phenotypic variation for all the yield contributing characters. Days to 50% flowering were positive and highly significance difference associated with plant height, number of pods per plant and fresh weight per pod. Path coefficient analysis showed that number of pods per plant exhibited positive and direct effects on pod yield across years. Indirect effect of other yield components through this character also contributed mainly towards pod yield. Therefore, plant height, days to 50% flowering, number of pods per plant, pod length, pod diameter, number of primary branches per plant and fresh weight per pod could be considered for selection and improvement for high pod yielding varieties in okra.

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Variability, character association and path coefficient analysis of green pod yield and its related traits in pea (Pisum sativum L.)

Legume Research - An International Journal ◽

10.18805/lr.v0iof.9104 ◽

2017 ◽

Author(s):

Keshav K. Gautam ◽

M. M. Syamal ◽

A. K. Singh ◽

Nakul Gupta

Keyword(s):

Plant Height ◽

Association Studies ◽

Path Coefficient ◽

Pod Yield ◽

Wide Range ◽

Character Association ◽

Additive Gene ◽

High Heritability ◽

Positive Direct ◽

Number Of Branches

Genetic variability, character association and path coefficient studies were carried out for yield and yield contributing characters for twenty-four diverse genotype of pea. The results revealed a wide range of phenotypic variation, along with high heritability in pea. Highest pod yield per plant was recorded in VRP-229 followed by VRP-372 and VRP-305. The characters namely, plant height and weight of seeds per pod showed high magnitude, while number of pods per plant, number of branches per plant and pod yield per plant showed moderate magnitude for phenotypic and genotypic coefficient of variation. The heritability and genetic advance were high for days to first pod initiation, plant height and pod yield per plant indicating its additive gene action for their expression. Character association studies revealed that pod yield per plant exhibit positive and highly significant correlation with number of pods per plant, number of branches per plant and days to fifty percent flowering. The path coefficient studies also revealed that maximum positive direct effect was observed through number of pods per plant followed by days to first flowering, single pod weight and pod length towards yield indicated that these characters may be considered as the most reliable selection indices while making selection for high yielding genotypes.

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Correlation and Path Coefficient Analysis in Cluster Bean [Cyamopsis tetragonoloba (L.) Taub.] Genotypes

Agricultural Science Digest - A Research Journal ◽

10.18805/ag.d-5385 ◽

2021 ◽

Author(s):

A. Remzeena ◽

P. Anitha

Keyword(s):

Plant Height ◽

Agricultural Sector ◽

Block Design ◽

Mitigation Strategies ◽

Path Coefficient ◽

Cyamopsis Tetragonoloba ◽

Cluster Bean ◽

Pod Yield ◽

Positive Direct ◽

Number Of Branches

Background: Climate change is a major challenge faced by the agricultural sector all over the world. Different adaptation and mitigation strategies are used to cope with these weather aberrations. Growing climate resilient crops and cultivars suitable for different regions is one of the adaptation strategy. Leguminous crops are well known for their resilience, adaptation and tolerance to adverse conditions, among these crops cluster bean is a hardy and drought tolerant crop extremely suitable for warm tropical regions. Hence identification and improvement of selected genotypes of cluster bean have paramount importance for combating the challenges possessed by the changing climatic scenario. Methods: Thirty accessions of cluster bean were evaluated during 2018. The experiment was laid out in randomized block design with two replications. Statistical analysis was employed for estimation of correlation and path coefficients. Result: The correlation analysis revealed that pod yield/plant had positive significant correlation with number of branches, number of pod clusters/plant, number of pods/plant and days to first harvest hence, selection of accessions having higher mean values for these traits could improve yield in cluster bean. Path analysis revealed that number of pods/plant had maximum positive direct effect on pod yield/plant followed by number of branches and plant height. Thus, while attempting selection for higher pod yield in cluster bean, number of pods per plant, number of branches and plant height have to be taken into account.

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Determination of Relationship and Path Co-efficient between Pod Yield and Yield Component Traits of Groundnut Cultivars

Nepal Journal of Science and Technology ◽

10.3126/njst.v14i2.10409 ◽

2014 ◽

Vol 14 (2) ◽

pp. 1-8

Author(s):

SB Thakur ◽

SK Ghimire ◽

NK Chaudhary ◽

SM Shrestha ◽

B Mishra

Keyword(s):

Root Length ◽

Yield Component ◽

Days To Flowering ◽

Pod Yield ◽

Kernel Length ◽

Days To Maturity ◽

Component Traits ◽

Yield Component Traits ◽

Positive Direct ◽

Pod Length

Twenty - five groundnut genotypes, obtained from National Oilseed Research Program (NORP), Nawalpur, Nepal along with local checks (B -4, Baidehi, Rajshree and Jayanti) were used to study correlation and path co-efficient among pod yield and yield component traits in groundnut. The pod yield ha-1 showed highly significant and positive association with days to maturity, sound matured kernel (SMK)%, pod length, pod width and kernel length but the highly significant and negative association was shown with days to flowering, pod plant-1, shoots length, shelling % and specific leaf area. Partitioning the total yield contributions into individual and combined effect showed that days to maturity, root length, pod width, pod length and kernel length made individual high positive direct contribution to pod yield ha-1.Days to flowering, shoot length, shelling %, SMK% and100 kernel weights had direct negative contribution with pod yield ha-1. Therefore, days to maturity, root length, pod width, pod length and kernel length were identified to be the important traits which could be used in selection for yield. DOI: http://dx.doi.org/10.3126/njst.v14i2.10409 Nepal Journal of Science and Technology Vol. 14, No. 2 (2013) 1-8

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Correlation and path coefficient analysis of seed yield and yield components of French bean (Phaseolus vulgaris L.) genotypes in sub-tropical region.

10.31220/agrirxiv.2020.00001 ◽

2020 ◽

Author(s):

S. Kalauni

Keyword(s):

Seed Yield ◽

Yield Components ◽

Seed Weight ◽

French Bean ◽

Path Coefficient ◽

Path Coefficient Analysis ◽

Pod Yield ◽

Pod Length ◽

100 Seed Weight ◽

Number Of Seeds

Abstract This research aims to determine the relationship between yield and yield components of French bean using multivariate statistical techniques. The study was conducted at Horticulture Research Station, Dailekh, Nepal for consecutive three year of 2016-2018. In this study, six French bean genotypes were used. The following measurements and observations were made: germination (%), pod length (cm), pod diameter (mm), individual pod weight and number of seeds pod-1, number of dry pods plant-1, dry pod yield plant-1 and dry pod yield (t/ha), 100 seed weight (g) and seed yield (t/ha). Highly significant and positive correlation was recorded between seed yield and individual pod weight (r=0.659***), number of seed pod-1 (r=0.548**) and pod length (0.459*). Conversely, pod diameter showed a negative and non-significant (-0.025) correlation on seed yield. Based on simple regression analysis, linear regression of individual pod weight, number of seed pod-1 and pod length leads to an increase in the seed yield (t/ha) by 0.188, 0.285 and 0.103 units respectively. From the path coefficient analysis maximum positive direct effect on seed yield was recorded by number of seeds pod-1 (0.767) followed by 100 seed weight (0.530) and individual pod weight (0.429). Also, stepwise multiple linear regression analysis revealed that three traits including individual pod weight, 100 seed weight and number of dry pod plant-1 with R2 = 68.22% showed their overall contribution towards seed yield. The rest of the variance (R2 = 31.78%) was contributed by the variables that were not included in the study. Results concerning four statistical methods showed that individual pod weight appeared to be most effective contributor of seed yield followed by the number of seed pod-1, 100 seed weight, and pod length. Therefore, attention should be paid to these characters in any breeding program during the selection criteria for improving the seed yield.

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Genetic Diversity, Correlations and Path Coefficient Analysis among the F5 Populations of Brassica Species

Asian Journal of Advances in Agricultural Research ◽

10.9734/ajaar/2021/v16i230170 ◽

2021 ◽

pp. 20-31

Author(s):

Sujon Kumar ◽

Barkat Ali ◽

A. B. M. Khaldun ◽

Shams Shaila Islam ◽

M. Shalim Uddin ◽

...

Keyword(s):

Plant Height ◽

Seed Yield ◽

Coefficient Of Variation ◽

Block Design ◽

Brassica Species ◽

Path Coefficient ◽

Path Coefficient Analysis ◽

Estimate Heritability ◽

Positive Direct ◽

Pod Length

The present study was carried out to estimate heritability, genetic variability, correlation and genetic advance among F5 populations of ten genotypes in Brassica species. This study was executed following randomized complete block design (RCBD) with three replications during November 2017 to February 2018 at the experimental field of College of Agricultural Sciences, International University of Business Agriculture and Technology, Dhaka, Bangladesh. Aim of the research was to evaluate and select the best segregating genotypes for the yield and yield contributing traits towards variety development programs. Analysis of variance revealed that the genotypes were significantly different for all the characters studied. The relative phenotypic coefficient of variation (PCV) was higher than the genotypic coefficient of variation (GCV) for all the traits studied. The high GCV value was observed for the days to 50% flowering (FF), plant height (PH), primary branches per plant (PBP), pod per plant (PP) and seed yield per plant (SYP) that indicated a high broad-sense heritability. A significant positive correlation with seed yield per plant was found in days to 50% flowering (0.578**), the plant height, (0.787**), pod length (PL) (0.406*), seeds per plant (SP) (0.369*), pod per plant (0.697**) and hundred seeds weight (HSW) (0.500**), but significantly negative correlation found in primary branches per plant (-0.046*). The results of path coefficient analysis revealed that days to 50% flowering (0.287), plant height (0.407), pod length (0.919), seeds per plant (0.033), pod per plant (0.035) and hundred seeds weight (0.795) had a positive direct impact on seed yield per plant and thus it was indicated that these traits could be exploited for the enhancement of yield performance of Brassica species. This study showed that based on the agronomic performance execution, genotypes G2, G5, G6 and G8 might be proposed for future hybridization programs in Bangladesh followed by variety development activities.

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