GENETIC DIVERGENCE IN MAIZE (Zea mays L.)

Ivy, N. A.; Uddin, MM; Sultana, Razia; Masud, Mohammad Mehedi

doi:10.3329/bjpbg.v20i1.17027

Cited by 8 publications

(7 citation statements)

References 1 publication

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“…It suggests that genotypes included within a cluster had less diversity among themselves. This is corroborated with the findings of Ivy et al (2007) and Kadir (2010). The highest intra cluster distance was observed in cluster V and the lowest was in cluster VII .…”

Section: Resultssupporting

confidence: 81%

Genetic diversity in maize inbreds under excess soil moisture condition

Hoque

Akhter²,

Kadir³

et al. 2017

Bangladesh J. Agric. Res

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Genetic diversity study was done in 64 maize inbreds grown under excess soil moisture condition.The genotypes were grouped into eight clusters. It was observed that all intercluster distances were larger than all intracluster distances. Such results indicated that genotypes included within a cluster had less diversity among themselves but wider genetic diversity among the inbreds of different clusters. The highest inter cluster distance was observed between cluster IV & VII followed by IV & V , IV & VIII, II & VII and I & IV. The highest intra cluster distance was noticed in cluster V and the lowest was in cluster VII. The highest yield/plant, cob girth, number of rows/ear, number of grains/plant, SPAD value and number of nodes with brace roots were observed in cluster IV. The lowest mean value for yield/plant yield components and dwarf statured plant were observed in cluster VII. The plant height, ear height,days to 50% tasseling and silking, cob length, cob girth, 100 grain weight and SPAD value contributed considerably to total divergence. The genetically diverged genotypes in these distinct clusters could be used as parents in hybridization program for getting desirable hybrid(s).

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Section: Resultssupporting

confidence: 81%

Genetic diversity in maize inbreds under excess soil moisture condition

Hoque

Akhter²,

Kadir³

et al. 2017

Bangladesh J. Agric. Res

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show abstract

“…Intra-group distances appeared much smaller than the inter-groups, suggesting a lower genetic diversity among the lines of the same group than those from different groups. This is collaborated with the results of Ivy et al (2007) and Hoque et al (2008). Intra-cluster distances varied from 0.634 to 1.611 comparatively, higher intra-cluster distances were observed in cluster IV and I. Clustering revealed instability due to low divergence and widely diverged clusters remain stable in different environment reported by Raut et al (1985).…”

Section: Resultssupporting

confidence: 75%

GENETIC DIVERGENCE ON QUANTITATIVE CHARACTERS OF EXOTIC MAIZE INBREDS (Zea mays L.)

Azam¹,

Sarker²,

Mian³

et al. 2015

Bangla J Plant Breeding & Genetics

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Forty nine CIMMYT, India Maize inbred lines were characterized based on some morphological traits and grain yield. Genetic divergences of inbred lines of maize were estimated using D2 and principal component analysis. The genotypes under study fell into five clusters. The inter cluster distance were higher than intra cluster distance suggesting wider genetic diversity among the genotypes of different groups. The maximum intra cluster value was observed in cluster IV and minimum in cluster V. The inter cluster D2 values revealed that the maximum distance among the cluster. The highest inter cluster distance was observed between cluster II & I and the lowest inter cluster distance was illustrated in cluster III & I. The cluster means were higher for days to 50% tasseling, days to 50% sillking, plant height, ear height, cob length, number of rows per cob, number of grains per row in cluster IV; cob diameter and grain yield per plant was found higher in cluster II. It is expected that crossing of inbred lines belonging high to medium D2 values tend to produce high heterosis for yield.

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“…Multivariate analysis is a useful tool to quantify the degree of divergence between the biological population at genotypic level and to assess the relative contribution of different components to the total divergence both inter and intra cluster levels (Ivy et al, 2007;Quamruzzaman et al, 2009;Amin et al, 2014 andNalla et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Genetic divergence in eggplant (Solanum melongena L.) genotypes

Karim

Rahman

Quamruzzaman³

2016

Bangladesh J. Agric. Res

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Multivariate analysis of twenty six genotypes of eggplant were done to estimate the genetic diversity and to select the potential parents for a successful hybridization program. As per PCA, D2 and cluster analysis, the genotypes were grouped into five clusters. The highest inter-cluster distance was between Cluster II and Cluster III (37.82) and the lowest between Cluster I and Cluster III (4.39). Cluster III showed the maximum intra-cluster distance (1.58), whereas Cluster II showed the lowest intra-cluster distance (0.48). Considering the magnitude of genetic distance and agronomic performance, the genotypes SM 208 and SM 209 from Cluster II and SM 201, SM 218 and SM 227 from Cluster III might be suitable for efficient hybridization program. On the other hand the genotypes of Cluster I (SM 206, SM 210, SM 211, SM 212, SM 213, SM 215, SM 216, SM 217, SM 221, SM 224, SM 225 and SM 226) possess all the superior characters in respect of yield and yield related component. Thus the genotypes SM 206, SM 216, SM 217, SM 224 and SM 225 from this Cluster could be selected to develop high yielding eggplant varieties.Bangladesh J. Agril. Res. 41(3): 433-439, September 2016

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GENETIC DIVERGENCE IN MAIZE (Zea mays L.)

Cited by 8 publications

References 1 publication

Genetic diversity in maize inbreds under excess soil moisture condition

Genetic diversity in maize inbreds under excess soil moisture condition

GENETIC DIVERGENCE ON QUANTITATIVE CHARACTERS OF EXOTIC MAIZE INBREDS (Zea mays L.)

Genetic divergence in eggplant (Solanum melongena L.) genotypes

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