Use of MARS algorithm for predicting mature weight of different camel (Camelus dromedarius) breeds reared in Pakistan and morphological characterization via cluster analysis

2021 ◽  
Vol 53 (1) ◽  
Author(s):  
Abdul Fatih ◽  
Senol Celik ◽  
Ecevit Eyduran ◽  
Cem Tirink ◽  
Mohammad Masood Tariq ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
Morphological Characterization ◽  
Camelus Dromedarius ◽  
Mature Weight

Morphological characterization and genetic diversity studies of promising brinjal genotypes for hybridization program in Bangladesh

2014 ◽  
Vol 3 (3) ◽  
pp. 226-235
Author(s):  
Abul Hasnat Muhammad Solaiman ◽  
Takashi Nishizawa ◽  
Mahmuda Khatun ◽  
Shahabuddin Ahmad
Keyword(s):  
Cluster Analysis ◽  
Multivariate Analysis ◽  
Principal Component ◽  
Morphological Characterization ◽  
Fruit Weight ◽  
Canonical Variate ◽  
Genetic Advance ◽  
Cluster Distance ◽  
And Cluster Analysis ◽  
Number Of Branches

In this Morphological variation of thirty-five brinjal genotypes was investigated in order to screen efficient genotypes for a hybridization program in Bangladesh. The phenotypic coefficient of variation (PCV) was higher than that for the genotypic. The PCV estimates were high for the number of branches, number of fruits per plant, and single fruit weight. Heritability estimates were high for the single fruit weight with high genetic advance. In spite of high heritability values for most traits, the expected genetic advance as a percentage of the mean ranged from 19.92 to 121.51. Multivariate analysis was performed using principal component analysis (PCA), principal coordinate analysis, cluster analysis and canonical variate analysis. With PCA, multivariate analysis of Mahalanobis's distance (D2), and cluster analysis, the genotypes were grouped into six clusters. The longest inter-cluster distance was between clusters II and III, and the shortest was between clusters V and VI. Cluster VI showed the longest intra-cluster distance but cluster II showed the shortest. Genotypes of cluster I were suitable for the number of branches per plant, cluster II for the fruit length, cluster III for the number of fruits per plant, and cluster IV for the single fruit weight and yield. Considering the performances, genotypes SM-111, SM-84, EGN-27, SM-183, and BARI begun-6 are suitable parents for the hybridization program.

scholarly journals Morphological characterization of eighteen lakes of the north and middle coast of Rio Grande do Sul, Brazil

2014 ◽  
Vol 26 (2) ◽  
pp. 199-214 ◽  
Author(s):  
Alois Eduard Schäfer ◽  
Cassiano Alves Marchett ◽  
Sabrina Maurer Schuh ◽  
Siclério Ahlert ◽  
Rosane Maria Lanzer
Keyword(s):  
Principal Component Analysis ◽  
Cluster Analysis ◽  
Discriminant Analysis ◽  
Trophic State ◽  
Principal Component ◽  
Rio Grande ◽  
Morphological Characterization ◽  
Relative Depth ◽  
Rio Grande Do Sul

AIMS: The present study aimed at a morphological characterization of 18 lakes of the municipalities of Cidreira, Balneário Pinhal and Palmares do Sul, situated in the northern and middle coastal plain of Rio Grande do Sul, Brazil. METHODS: The morphometric survey was conducted in the summer of 2011/2012, based on echo sounder coupled with GPS and the application of remote sensing and GIS procedures. The morphometric parameters used for the characterization were: surface area, perimeter, perimeter development, volume, relative fetch, maximum depth, average depth, relative depth, median depth of volume, length and width. The statistical interpretation included Test of Normality, Coefficient of Variation, Correlation and Regression Analysis, Cluster Analysis, Discriminant Analysis and Principal Component Analysis. RESULTS: Eighteen lakes were described and five of them are presented by aerial photo and bathymetric map. They represent the proposed morphological lake types. The calculation of the coefficient of variation revealed larger amplitudes of parameters related to lake size than to depth. The application and interpretation of cluster analysis, confirmed by discriminant analysis, distinguished those lakes in five morphological groups, which differ mainly by size and subsequently by depth. The Principal Component Analysis identified the first component with positively charged variables of size and negatively charged relative depth, and a second component with positive charge of maximum and average depths. CONCLUSIONS: The low relative depths and the exposure to constant northeastern winds reduce the transparency of the lakes. Consequently, they are light limited by suspension of inorganic and organic matter. A property that limits the application of trophic state indices. The high dynamic of the water bodies produces an oxygenated sediment surface that facilitates the settlement by aerobic organisms all over the bottom area. The shallowness and the low median depths of volume are limiting factors for sustainable water supply management. The morphological characteristics of the coastal lakes make very difficult an accurate ecological assessment based on usual trophic state criterions and a sustainable water resource management using general guidelines.

scholarly journals Agro-morphological Characterization of Bangladeshi Aromatic Rice (Oryza sativa L.) Germplasm Based on Qualitative Traits

2019 ◽  
Vol 22 (2) ◽  
pp. 41-54
Author(s):  
MZ Islam ◽  
M Khalequzzaman ◽  
MK Bashar ◽  
NA Ivy ◽  
MM Haque ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Morphological Characterization ◽  
Morphological Descriptors ◽  
Qualitative Traits ◽  
Upgma Cluster Analysis ◽  
Breeding Programmes ◽  
High Yielding Varieties

The agro-morphological characterization of germplasm is of utmost importance to generate information to be utilized in plant breeding programmes. The aim of this study was to characterize the agro-morphological traits of 113 accessions of aromatic germplasm (Oryza sativa L.) based on qualitative agro-morphological descriptors. No duplicates were identified among the studied accessions for qualitative traits in the cluster analysis, which means there is a high diversity among the accessions for these traits. Following UPGMA cluster analysis, 113 accessions of aromatic germplasm formed ten distinct clusters. The highest numbers of germplasm (96) were found in cluster IXd, 2 were found in cluster III, IV and VI, 3 were found in IXc and the lowest number of germplasm (1) in cluster I, II,V, VII, VIII, IXa, IXb and X, respectively. Aroma evaluation revealed that 67 germplasm were scented, 34 were lightly scented, while the rest 12 germplasm were nonscented. Germplasm namely Begun bichi, Elai, Chinigura, Basmati 370, Ranisalut, Sakkorkhora, Jirakatari, Raduni Pagal, Kalijira (long grain), Black TAPL-554, Kalgochi, BRRI dhan34, BRRI dhan50, Badshabhog-2, Tulsimala-2, Kataribhog, BU dhan2R , Sakkorkhana, Maloti, Bashful could be used for further improvement for incorporating aroma to the high yielding varieties. Bangladesh Rice j. 2018, 22(2): 41-54

scholarly journals Morphological Characterization of Biocontrol Isolates of Trichoderma to Study the Correlation between Morphological Characters and Biocontrol Efficacy

2016 ◽  
Vol 55 ◽  
pp. 57-67
Author(s):  
A. Muthu Kumar ◽  
Pratibha Sharma
Keyword(s):  
Cluster Analysis ◽  
Trichoderma Viride ◽  
Similarity Index ◽  
Morphological Characters ◽  
Morphological Characterization ◽  
Dual Culture ◽  
Biocontrol Efficacy ◽  
Maximum Similarity ◽  
Single Cluster

The morphological characterization was carried out for 5 isolates of Trichoderma harzianum and 7 isolates of Trichoderma viride and tested for their biocontrol efficacy. The isolates belonging to T.harzianum were analogous in colony colour, culture smell, mycelial colour, conidiation, conidial shape, conidial wall and conidial colour. Correspondingly the isolates of T.viride showed certain similarity in colony colour, colony edge, culture smell, conidiophore branching, conidial wall, conidial colour and chlamydospores. Inter specific differences through cluster analysis based on morphological characters grouped the twelve isolates into three major clusters where all the isolates of T.harzianum formed a single cluster while the isolates of T.viride were bifurcated into two groups. The clustering was substantiated by similarity index which showed maximum similarity among T.harzianum isolates with only less than 20% variation among themselves. Similarly the clusters having isolates of T.viride also had less variation within them. The biocontrol efficacy of these twelve isolates of Trichoderma was experimented by dual culture test under laboratory condition and there existed some relation between the biocontrol efficacy of these isolates and morphology.

scholarly journals Karakterisasi Morfologi Populasi Etlingera elatior (Jack) R.M.Sm. (Zingiberaceae) di Sumatera Barat

2018 ◽  
Vol 5 (1) ◽  
pp. 25
Author(s):  
Zola Anjelia Putri ◽  
Nurainas Nurainas ◽  
Syamsuardi Syamsuardi
Keyword(s):  
Cluster Analysis ◽  
Morphological Characters ◽  
Morphological Characterization ◽  
Traditional Medicines ◽  
Main Cluster ◽  
Pale Pink ◽  
Direct Sampling ◽  
West Sumatra ◽  
Etlingera Elatior

Research about morphological characterization of Etlingera elatior  (Jack) R.M.Sm. (Zingiberaceae) was conducted from August to December 2016 in West Sumatra regions (Kepulauan Mentawai, Solok, and Padang Pariaman) and Padang city. Etlingera elatior has been used as traditional medicines for several diseases. Etlingera elatior was used for the treatment of various diseases. Effectivityof this plant depend on the preciseus in of the determinating variants type. The aim of this research was analyzed morphological variation among populations of Etlingera elatior. Survey and direct sampling method were used and continued by measurement of morphological characters of Etlingera elatior. Classification analyzed by cluster analysis with PAST program. Based on differentiation of the bract color of flowers, four variants of Etlingera elatior in West Sumatra were clarified those were 'red', 'pink', 'pale pink', and 'white' variant. The result of cluster analysis of 53 individuals Etlingera elatior indicated that many of 'white' and the 'red' variant were clustered in the same main cluster and individuals of 'pale pink' variant mostly clustered to 'red' variant and some of them were existed in the 'pink’ variant.

Morphological Characterization of Mycobacteriophage R1

1974 ◽  
Vol 32 ◽  
pp. 254-255
Author(s):  
B. L. Soloff ◽  
T. A. Rado
Keyword(s):  
Carbon Source ◽  
Stationary Phase ◽  
Growth Phase ◽  
Minimal Medium ◽  
Morphological Characterization ◽  
Logarithmic Growth Phase ◽  
Complete Lysis ◽  
Lysogenic Culture ◽  
Logarithmic Growth

Mycobacteriophage R1 was originally isolated from a lysogenic culture of M. butyricum. The virus was propagated on a leucine-requiring derivative of M. smegmatis, 607 leu−, isolated by nitrosoguanidine mutagenesis of typestrain ATCC 607. Growth was accomplished in a minimal medium containing glycerol and glucose as carbon source and enriched by the addition of 80 μg/ ml L-leucine. Bacteria in early logarithmic growth phase were infected with virus at a multiplicity of 5, and incubated with aeration for 8 hours. The partially lysed suspension was diluted 1:10 in growth medium and incubated for a further 8 hours. This permitted stationary phase cells to re-enter logarithmic growth and resulted in complete lysis of the culture.

Cluster analysis for large data sets: applications to individual aerosol particles from the mid-pacific

1992 ◽  
Vol 50 (2) ◽  
pp. 1488-1489
Author(s):  
Thomas W. Shattuck ◽  
James R. Anderson ◽  
Neil W. Tindale ◽  
Peter R. Buseck
Keyword(s):  
Cluster Analysis ◽  
Chemical Reactivity ◽  
Large Data ◽  
Large Data Sets ◽  
Particle Analysis ◽  
Data Sets ◽  
Halogen Chemistry ◽  
Complete Study ◽  
Components Analysis ◽  
Automated Scanning

Individual particle analysis involves the study of tens of thousands of particles using automated scanning electron microscopy and elemental analysis by energy-dispersive, x-ray emission spectroscopy (EDS). EDS produces large data sets that must be analyzed using multi-variate statistical techniques. A complete study uses cluster analysis, discriminant analysis, and factor or principal components analysis (PCA). The three techniques are used in the study of particles sampled during the FeLine cruise to the mid-Pacific ocean in the summer of 1990. The mid-Pacific aerosol provides information on long range particle transport, iron deposition, sea salt ageing, and halogen chemistry.Aerosol particle data sets suffer from a number of difficulties for pattern recognition using cluster analysis. There is a great disparity in the number of observations per cluster and the range of the variables in each cluster. The variables are not normally distributed, they are subject to considerable experimental error, and many values are zero, because of finite detection limits. Many of the clusters show considerable overlap, because of natural variability, agglomeration, and chemical reactivity.

A morphological and energy-dispersive x-ray spectroscopy (EDS) investigation of separator-grade cellophane

1994 ◽  
Vol 52 ◽  
pp. 430-431
Author(s):  
Michael E. Rock ◽  
Vern Kennedy ◽  
Bhaskar Deodhar ◽  
Thomas G. Stoebe
Keyword(s):  
Extrusion Process ◽  
Morphological Characterization ◽  
Energy Dispersive ◽  
Regenerated Cellulose ◽  
Battery System ◽  
X Ray ◽  
Functional Differences ◽  
Transmission Electron ◽  
Separator Material ◽  
Underwater Target

Cellophane is a composite polymer material, made up of regenerated cellulose (usually derived from wood pulp) which has been chemically transformed into "viscose", then formed into a (1 mil thickness) transparent sheet through an extrusion process. Although primarily produced for the food industry, cellophane's use as a separator material in the silver-zinc secondary battery system has proved to be another important market. We examined 14 samples from five producers of cellophane, which are being evaluated as the separator material for a silver/zinc alkaline battery system in an autonomous underwater target vehicle. Our intent was to identify structural and/or chemical differences between samples which could be related to the functional differences seen in the lifetimes of these various battery separators. The unused cellophane samples were examined by transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS). Cellophane samples were cross sectioned (125-150 nm) using a diamond knife on a RMC MT-6000 ultramicrotome. Sections were examined in a Philips 430-T TEM at 200 kV. Analysis included morphological characterization, and EDS (for chemical composition). EDS was performed using an EDAX windowless detector.

Measuring “Language Access Profiles” in Deaf and Hard-of-Hearing Children With the DHH Language Exposure Assessment Tool

2020 ◽  
pp. 1-25
Author(s):  
Matthew L. Hall ◽  
Stephanie De Anda
Keyword(s):  
Cluster Analysis ◽  
Exposure Assessment ◽  
Hard Of Hearing ◽  
Assessment Tool ◽  
Communication Mode ◽  
Developmental Potential ◽  
Language Access ◽  
Retest Reliability ◽  
Language Exposure ◽  
Test Retest Reliability

Purpose The purposes of this study were (a) to introduce “language access profiles” as a viable alternative construct to “communication mode” for describing experience with language input during early childhood for deaf and hard-of-hearing (DHH) children; (b) to describe the development of a new tool for measuring DHH children's language access profiles during infancy and toddlerhood; and (c) to evaluate the novelty, reliability, and validity of this tool. Method We adapted an existing retrospective parent report measure of early language experience (the Language Exposure Assessment Tool) to make it suitable for use with DHH populations. We administered the adapted instrument (DHH Language Exposure Assessment Tool [D-LEAT]) to the caregivers of 105 DHH children aged 12 years and younger. To measure convergent validity, we also administered another novel instrument: the Language Access Profile Tool. To measure test–retest reliability, half of the participants were interviewed again after 1 month. We identified groups of children with similar language access profiles by using hierarchical cluster analysis. Results The D-LEAT revealed DHH children's diverse experiences with access to language during infancy and toddlerhood. Cluster analysis groupings were markedly different from those derived from more traditional grouping rules (e.g., communication modes). Test–retest reliability was good, especially for the same-interviewer condition. Content, convergent, and face validity were strong. Conclusions To optimize DHH children's developmental potential, stakeholders who work at the individual and population levels would benefit from replacing communication mode with language access profiles. The D-LEAT is the first tool that aims to measure this novel construct. Despite limitations that future work aims to address, the present results demonstrate that the D-LEAT represents progress over the status quo.

Sign in / Sign up

Export Citation Format

Share Document