Genetic divergence, variability and correlation studies in black gram [Vigna mungo (L.) Hepper]

2019 ◽  
Author(s):  
L. Priya . ◽  
M. Arumugam Pillai ◽  
D. Shoba
Keyword(s):  
Plant Height ◽  
Genetic Divergence ◽  
Mean Value ◽  
Black Gram ◽  
Single Plant ◽  
Plant Yield ◽  
Cluster Distance ◽  
Breeding Programmes ◽  
High Heritability ◽  
Selection Of

A field experiment was conducted to estimate genetic divergence, variability and correlation in 104 black gram genotypes for nine quantitative characters. Genetic diversity using Mahalanobis D2 technique was studied for yield and yield contributing traits. Out of eight clusters, high inter cluster distance was recorded between clusters VI and VIII. Cluster V had low mean value for days to 50% flowering and cluster VII had high mean value for plant height, number of primary branches per plant and number of seeds per plant. The genotypes present in these clusters could be utilized for hybridization programmes. High heritability coupled with GAM was observed for plant height, number of primary branches per plant, number of clusters per plant, number of pods per plant and single plant yield. From the association analysis, single plant yield had positive and significant association with plant height and number of primary branches per plant. Hence, simultaneous selection of the above traits would be more rewarding to bring genetic improvement in black gram breeding programmes.

Genetic relationship between yield and battering quality in blackgram (Vigna Mungo L.)

2016 ◽  
Author(s):  
K. Veni ◽  
E. Murugan ◽  
M. L. Mini ◽  
C. Vanniarajan ◽  
T. Radhamani
Keyword(s):  
Genetic Relationship ◽  
Genetic Divergence ◽  
Biochemical Parameters ◽  
Seed Weight ◽  
Crude Protein ◽  
Vigna Mungo ◽  
Single Plant ◽  
Plant Yield ◽  
Cluster Distance

An experiment was carried out to study the genetic divergence of 39 genotypes of blackgram. Biochemical parameters such crude protein, albumin and globulin content and yield attributing traits such as hundred seed weight and single plant yield were estimated. Grouping of genotypes into various clusters was done by Mahalnobis D2 statistics. The 39 genotypes were grouped into five clusters. Among the five clusters, cluster V had more number of genotypes. The highest value of intra cluster distance was recorded in cluster V while cluster I had minimum intra cluster distance and maximum inter cluster distance was observed between cluster II and cluster III. Among the nine characters single plant yield and hundred seed weight contributed maximum towards divergence. The study showed that the genotypes UH04-4, CO 5, KKB05011 and ACM07002 could be used for hybridization to develop high yielding blackgram varieties with good battering quality.

Genetic divergence in blackgram [Vigna mungo (L) Hepper]

2017 ◽  
Author(s):  
P. Gowsalya ◽  
D. Kumaresan ◽  
D. Packiaraj ◽  
J.R. Kannan Bapu
Keyword(s):  
Genetic Divergence ◽  
Mean Value ◽  
Breeding Program ◽  
Yield Attributes ◽  
Cluster Distance ◽  
Breeding Programmes ◽  
Superior Genotypes ◽  
Transgressive Segregants ◽  
Efficient Breeding ◽  
Number Of Branches

Eighty genotypes of blackgram comprising landraces, varieties and local cultivars collected from different locations were studied for genetic divergence by using D2 statistic. The genotypes were grouped into twelve clusters, cluster I had maximum of 41 genotypes followed by cluster V and VI with 11 genotypes in each. Clusters VIII, XI and XII had one genotype each. The maximum intra cluster distance was found in cluster I. The divergence within the cluster indicates the divergence among the genotypes in the same cluster. Maximum inter-cluster distance was found between cluster III and XI followed by cluster XI and VII, XI and X, XI and III, indicating efficient breeding program can be undertaken to improve productivity and other yield attributes by exploiting heterosis breeding program by selecting superior genotypes in segregating generation. Number of branches, plant height, 100 seed weight and number of clusters per plant had maximum contribution to divergence. Cluster VI had highest mean value for seeds per pod, clusters per plant and pods per plant. Cluster IV recorded highest mean value for seed yield per plant and number of branches per plant. Due importance should be given for these traits for selection of parents for efficient breeding programmes. Lu 18 and VZM 189/65 may serve as potential parents in getting transgressive segregants

scholarly journals STUDIES ON GENETIC DIVERSITY IN Vigna mungo L. Hepper IN YMV HOTSPOT

1970 ◽  
pp. 39-42
Author(s):  
R. KARTHIKEYAN, R. THIRUMALAI, A.J. NAINU ◽  
V. DIVYABHARATHI, R. NARAYANAN, S. MURUGAN
Keyword(s):  
Genetic Diversity ◽  
Seed Yield ◽  
Mean Value ◽  
Phenotypic Variance ◽  
Single Plant ◽  
Plant Seed ◽  
Cluster Distance ◽  
High Heritability ◽  
Maximum Cluster ◽  
Pod Length

            The present investigation was conducted to examine the 41 blackgram genotypes  along with one check (T-9) to study the genetic diversity. Analysis of variance showed highly significant differences among 41blackgram genotypes for 9 quantitative characters studied. Maximum genotypic and phenotypic variance was recorded for percentage of disease infection, single plant seed yield, and number of pods per plant.   Minimum   GCV and PCV were recorded for pod length, days to 50% flowering, number of seeds per pod. High heritability was recorded for percentage of disease infection, single plant seed yield, and number of pods per plant. High heritability coupled with high genetic advance as percent of mean was recorded for percentage of disease infection, single plant seed yield. Genetic diversity estimated in 41 blackgram genotypes using Mahalanobis’s D2 statistic. Forty one genotypes were grouped into seven clusters by Tocher method (Mahalanobis Euclidean Distance) cluster analysis.  The  maximum  inter-cluster  distance  was  observed  between  cluster VI  and  cluster  VII and maximum intra-cluster distance was observed in cluster VI.  Cluster VII showed maximum cluster mean value for seed yield per plant. Among all the characters, seed yield per plant and percentage of disease infection contributes maximum.

scholarly journals GENETIC DIVERGENCE AND MORPHO-AGRONOMIC PERFORMANCE OF JATROPHA CURCAS L. CLONES FOR SELECTION OF CLONAL VARIETIES

2016 ◽  
Vol 29 (4) ◽  
pp. 841-849
Author(s):  
ADRIANA QUEIROZ DE ALMEIDA ◽  
SIMONE ALVES SILVA ◽  
VANESSA DE OLIVEIRA ALMEIDA ◽  
DEOCLIDES RICARDO DE SOUZA ◽  
GILMARA DE MELO ARAÚJO
Keyword(s):  
Genetic Diversity ◽  
Multivariate Analysis ◽  
Plant Height ◽  
Genetic Divergence ◽  
Morphological Characterization ◽  
Stem Diameter ◽  
Agronomic Performance ◽  
And Performance ◽  
Lower Contribution ◽  
Selection Of

ABSTRACT The knowledge about genetic diversity of jatropha crop is important for genetic conservation resources and breeding of this species. The aim of this study was to evaluate the genetic diversity and performance of jatropha clones through morphological characterization to selection of clonal varieties for biofuels production. The clones were obtained through shoot cuttings from previous selection in a population of half-sibs progenies. The morphoagronomic analyses of clones was carried out at 180 days after transplantation and were evaluated plant height, stem diameter, number of primary branches and number of secondary branches, number of bunches and number of fruits per plant. Evaluating clones performance, significant results were found for the number of secondary branches. About analysis of genetic diversity, the measures of dissimilarity genetic varied from 0.62 to 13.11, this way, the UFRBPR14 and UFRBPR15 clones were more divergent. The Tocher method was efficient to verify formation of four groups. The characteristics that most contributed to the divergence among clones were branches number, height and number of bunches, and, stem diameter had lower contribution. The jatropha clones differed only in the secondary branches number and multivariate analysis showed divergence among the jatropha clones with formation of four groups. Also, branches number, plant height and number of bunches were characteristic that contributed to genetic divergence.

scholarly journals Genetic divergence of exotic inbred lines of maize (Zea mays. L)

2018 ◽  
Vol 42 (4) ◽  
pp. 665-671
Author(s):  
AH Akhi ◽  
S Ahmed ◽  
ANMS Karim ◽  
F Begum ◽  
MM Rohman
Keyword(s):  
Plant Height ◽  
Zea Mays L ◽  
Agricultural Research ◽  
Inbred Lines ◽  
Mean Value ◽  
Morphological Attributes ◽  
Mean Values ◽  
Cluster Distance ◽  
Ear Height ◽  
Total Divergence

Sixty exotic inbred lines of maize from CIMMYT were characterized for a few morphological attributes and grain yield at the experimental field of Bangladesh Agricultural Research Institute (BARI) during 2013-14. The inbred lines of the existing investigation were grouped into five distinct non-overlapping clusters based on D2 analysis. Cluster II was comprised of the highest number of inbreds whilst cluster III and IV included the lowest number of inbreds. The inter cluster distance was higher than intra cluster distance suggesting wider genetic diversity among the genotypes of different groups. The highest inter-cluster distance was exhibited between clusters II and V (D2 = 15.40) and the lowest inter-cluster distance was observed between clusters I and II (D2 = 2.82). Cluster II exhibited the highest mean values for cob length and cob diameter, cluster V for number of grain /cob and total grain weight. The lowest mean value for plant height & ear height were found in cluster II and cluster IV for days to pollen shedding and days to silking. Days to silking, plant height, cob length (cm), number of rows /cob, number of grains /cob showed maximum contribution towards total divergence among different characters. The inbred lines were characterized for their morphological traits and kernel yield to achieve more heterotic partners to get higher heterosis.Bangladesh J. Agril. Res. 42(4): 665-671, December 2017

scholarly journals Genetic Divergence in Chickpea (Cicer arietinum L.)

2012 ◽  
Vol 37 (1) ◽  
pp. 129-136
Author(s):  
MA Syed ◽  
MR Islam ◽  
MS Hossain ◽  
MM Alam ◽  
MN Amin
Keyword(s):  
Genetic Diversity ◽  
Principal Component Analysis ◽  
Cicer Arietinum ◽  
Genetic Divergence ◽  
Principal Component ◽  
Mean Value ◽  
Breeding Programs ◽  
Cicer Arietinum L ◽  
Cluster Distance ◽  
High Yielding Varieties

Genetic diversity of 27 chickpea genotypes was studied through Mahalanobis D2 and Principal Component analysis. The genotypes under study fall into five clusters. The cluster II contained the highest number of genotypes (11) and Cluster I contained the lowest. Cluster I produced the highest mean value for number of pods per plant. The inter cluster distances were much higher than the intra cluster distances. Cluster V exhibited the highest intra cluster distance while the lowest distance was observed in cluster I. The highest inter cluster distance was observed between cluster I and II while the lowest was between cluster III and V. Considering all the characters, it was suggested that the genotypes BD6549, BD6603, and BD6548 could used as parents for future breeding programs to develop high yielding varieties of chickpea. DOI: http://dx.doi.org/10.3329/bjar.v37i1.11184 Bangladesh J. Agril. Res. 37(1): 129-136, March 2012  

Genetic divergence and stability (AMMI) study in chickpea (Cicer aeritinum L.) under north western Himalayas of Jammu and Kashmir, India

2016 ◽  
Author(s):  
Sanjeev Kumar ◽  
Praveen Singh ◽  
Magdeshwar Sharma
Keyword(s):  
Genetic Diversity ◽  
Mean Value ◽  
Western Himalayas ◽  
Jammu And Kashmir ◽  
Days To Maturity ◽  
Cluster Distance ◽  
Breeding Programmes ◽  
Ammi Model ◽  
High Yielding Varieties ◽  
North Western

Genetic diversity of seventeen chickpea genotypes was studied through Mahalanobis D2, Tocher’s Method. The genotypes under study fall into five clusters. The cluster- IInd contained the highest number of genotypes (08) and Cluster IV and V contained the lowest (01). Cluster- II produced the highest mean value for days to maturity. The inter-cluster distances were much higher than the intra-cluster distances. Cluster-V exhibited the highest intra-cluster distance while the lowest distance was observed in cluster-IV and V. The highest inter-cluster distance was observed between cluster-III and V while the lowest was between cluster-I and IV. Considering all the characters, it is suggested that the genotypes 81-0-800, C-306, 96907, C-235 and SCS-3 could be used as parents for future breeding programmes to develop high yielding varieties of chickpea. As per AMMI model, two genotypes i.e. C-81 and 96911 were identified as having wider adaptability along with higher seed yield per plant.

scholarly journals Genetic Divergence in Pointed Gourd

1970 ◽  
pp. 87-92 ◽  
Author(s):  
MY Kabir ◽  
ASMMR Khan ◽  
MS Hassain
Keyword(s):  
Genetic Diversity ◽  
Genetic Divergence ◽  
Agricultural Research ◽  
Growing Season ◽  
Mean Value ◽  
Research Station ◽  
Cluster Distance ◽  
Late Maturity ◽  
Pointed Gourd ◽  
Clustering Pattern

The experiment was conducted at the Regional Agricultural Research Station, Ishurdi, Pabna during the growing season 2005-2006 to estimate the genetic diversity among 24 genotypes of pointed gourd by using Mahalanobis D² statistics for nine characters. The genotypes were grouped in to five clusters. The cluster I and III consisted of highest number of genotypes and it was six. The cluster IV contained the lowest number of genotypes and it was three. The clustering pattern of the genotypes under this study revealed that the genotypes collected from the same location were grouped into different clusters. The genotypes of Kushtia were distributed in different clusters. The inter cluster distance were larger than the intra cluster distance suggesting wider genetic diversity among the genotypes of different groups. The highest intra cluster distance was computed for cluster IV (35.80) and the minimum intra cluster distance was found in cluster III (18.37). The clusters IV and II were more diverse as indicated by maximum inter cluster distances between them (41.56) and the minimum inter cluster divergence was observed between cluster III and II (6.84). Cluster II had the highest cluster mean value for number of fruits per plant (391), weight of fruit per plant (11.72kg) and yield (35.28t/ha). Genotypes of the cluster V had late maturity. Key words: Genotype; genetic diversity; pointed gourd. DOI: 10.3329/jard.v7i1.4426 J Agric Rural Dev 7(1&2), 87-92, June 2009

scholarly journals Diversity Analysis in Biofortified Inbred Lines of Maize (Zea mays L.)

2021 ◽  
pp. 115-123
Author(s):  
Priyanka Jaiswal ◽  
. Banshidhar ◽  
. Banshidhar ◽  
Dan Singh Jakhar ◽  
Rajesh Singh
Keyword(s):  
Seed Weight ◽  
Agricultural Research ◽  
Block Design ◽  
Inbred Lines ◽  
Mean Value ◽  
Randomized Block Design ◽  
Zn Concentration ◽  
Cluster Distance ◽  
100 Seed Weight ◽  
Selection Of

Thirty biofortified inbred lines of maize were evaluated for 11 parameters to study the genetic diversity by using D2 statistics during kharif 2017in Randomized Block Design (RBD) with three replications at Agricultural Research farm, Institute of Agricultural Sciences, BHU Varanasi. In present investigation all genotypes were grouped into ten cluster. Among the different clusters of inbred lines, the cluster II with 8 inbreds emerged as the largest cluster. The intra cluster D2 value ranged from 10.82 to 44.89. The maximum intra cluster distance was observed for cluster X (D2 = 44.89). The maximum inter cluster distance was observed between cluster V and VI (D2 = 180.90) followed by cluster V and VII (D2 = 166.10), cluster IV and V (D2 = 155.60), cluster V and VIII (D2 = 135.02) and cluster I and VI (D2 = 127.66). The maximum contribution towards divergence was due to 100 seed weight (52.18%), thus, estimates of variation in seed weight could be used as a basis for selection of distantly related parents. Highest mean value for grain yield per plant (80.8) and Zn concentration (39.53) were observed in cluster IV, while the highest mean value for 100 seed weight was found in cluster V. Therefore, these clusters prove to be of prime importance for selection of parents in hybridization programme aimed at higher yield along with enhanced grain Zn concentration.

scholarly journals Genetic Analysis and Seed Polymorphism in Inter sub Specific Cross of Blackgram (Vigna mungo (L.) Hepper)

2021 ◽  
Vol 108 (december) ◽  
Author(s):  
Manju Devi S ◽  
◽  
Jayamani P ◽  
Kumar M ◽  
◽  
...  
Keyword(s):  
Plant Height ◽  
Coefficient Of Variation ◽  
Seed Weight ◽  
Vigna Mungo ◽  
Width Ratio ◽  
Single Plant ◽  
Seed Length ◽  
Plant Seed ◽  
Plant Yield ◽  
Breeding Lines

The present study was carried out using 189 pre-breeding lines from the cross VBN (Bg) 5 and Vigna mungo var silvestris 22/10 to study the genetic variability for nine yields and six seed traits. Significant variability was observed for all the traits studied. The phenotypic coefficient of variation (PCV) was higher than the genotypic coefficient of variation (GCV) for all the 15 traits. High PCV was observed for number of pods per plant, seed volume, and single plant yield. The moderate to high GCV was exhibited for hundred seed weight, plant height, number of pods per plant, seed volume, and single plant yield. The heritability estimates were high for pod length, plant height, seed length, hundred seed weight, single plant yield, bulk density, seed length-width ratio and seed width. The traits viz., plant height, hundred seed weight, and single plant yield showed high heritability along with high genetic advance as per cent of mean respectively, which might be due to additive gene action. Hence, these traits could act as a better source for the breeding programme for evolving high-yielding bold seeded varieties.

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