scholarly journals Genetic Diversity, Phylogenetic Tree and Principal Component Analysis Based on Morpho-Metric Traits of Assam Chilli

2018 ◽  
Vol 1 (1) ◽  
pp. 47-61
Author(s):  
Prabalee Sarmah ◽  
Debojit Sarma ◽  
Sailen Gogoi
Keyword(s):  
Plant Height ◽  
Capsicum Annuum ◽  
Principal Component ◽  
Morphological Characterization ◽  
Fruit Weight ◽  
Leaf Length ◽  
Perennial Shrub ◽  
Component Traits ◽  
Plant Habit ◽  
Fruit Characters

We evaluated a set of 37 chilli genotypes collected and maintained at Assam Agricultural University, Jorhat for 27 different traits related to plant habit (5), leaf (6), flower (2), fruit (13) and biotic stress (1). The variation in fruit yield among the genotypes could be attributed to high coefficients of variability for component traits viz., number of fruits per plant (91.7%), plant height (80.8%), leaf breadth (55.9 %), fruit weight (49.7%), leaf length (45.4%) fruit length (35.8%), fruit breadth (35.5%) and number of branches per plant (22.2%). Maximum phenotypic variants were observed for fruit traits followed by leaf characteristics. Phylogenetic analysis revealed Euclidean distances varying from a minimum of 2.065 and a maximum of 13.311 indicating the diverse nature of the genotypes. UPGMA clustering grouped the genotypes into 5 distinct clusters. The largest one, cluster I, had 26 genotypes belonging to Capsicum annuum var. acuminatum. Cluster II consisted of Capsicum annuum var. conoides with cone-shaped fruits. Cluster III included Moni Jolokia, a perennial shrub with cone-shaped globose erect fruits which clustered in between the other local C. annuum sp. Bireek and Mem Jolokia. The fourth cluster (IV) included the local chilli genotypes - Mem Jolokia, Bhekuri Jolokia and Haitha Jolokia which were perennial, with green stem and leaves. Cluster V included the C. chinense genotypes consisting of Manipuri Bhut, Bor Bhut and Lota Bhut. The first principal component explained 34.93% of the total variation contributed by mostly leaf and fruit characteristics. The fruit characters in this component showed significant positive correlation with leaf length, breadth and plant height indicating their importance in the morphological characterization of the chilli genotypes.

scholarly journals Morphological variation in Paspalum nicorae Parodi accessions, a promising forage

2010 ◽  
Vol 67 (2) ◽  
pp. 143-150 ◽  
Author(s):  
Camila Aparecida de Oliveira dos Reis ◽  
Miguel Dall'Agnol ◽  
Carlos Nabinger ◽  
Maria Teresa Schifino-Wittmann
Keyword(s):  
Plant Height ◽  
Morphological Variation ◽  
Geographical Location ◽  
Rio Grande ◽  
Morphological Characterization ◽  
Leaf Length ◽  
Rio Grande Do Sul ◽  
Breeding Programs ◽  
Grazing Tolerance ◽  
Leaf Hairiness

Paspalum nicorae Parodi is a perennial, apomictic tetraploid forage species, native in the state of Rio Grande do Sul, Brazil, with grazing tolerance and adapted to sandy soils and moderate droughts. As a first step to future breeding, a morphological characterization regarding leaf hairiness, sheath, leaf and central venation color, growing habit, plant height, raceme number and length, and leaf length and width was performed in 53 accessions from Rio Grande do Sul that are part of a Paspalum species breeding program. 35.84% of the accessions had completely hairy leaves, 73.58% had green sheath, 54.71% whitish central venation, 50.94% decumbent habit. Leaf color was estimated by two methods, color chart and colorimeter. The accessions were classified as 76.92% green, 13.45% greenish yellow and 9.62% as grayish green by the first, and 59.62% grayish, 32.69% grayish yellow, 5.77% yellow and 1.92% dark grayish by the second method. Raceme length ranged from 9.40 to 1.30 cm, number of racemes from one to six (48.73% of the accessions had four racemes), leaf length and width from 36.13 to 13.06 cm and 0.67 to 0.36 cm, respectively, and plant height from 115.70 to 29.00 cm. Therefore, a large morphological variation among accessions was detected, with no relation to geographical location but indicating a high potential use in plant breeding programs.

scholarly journals Analysis of Genotypic Variation and Selection of Superior Genotypes of Balanites roxburghii Planch. from South India

2021 ◽  
Author(s):  
Guggalada Govardhana Yadav ◽  
Niranjana Murthy Hosakatte
Keyword(s):  
Genotypic Variation ◽  
Morphological Characterization ◽  
Fruit Weight ◽  
Kernel Weight ◽  
Biodiesel Production ◽  
Seed Kernel ◽  
Superior Genotypes ◽  
Fruit Characters ◽  
Important Medicinal Plant ◽  
Selection Of

Abstract Balanites roxburghii is an important medicinal plant of India and is used in the treatment of various diseases and disorders. Seeds possess a high amount of oil and could be used in biodiesel production. This plant is also a source of diosgenin, a therapeutically useful compound. Domestication of this plant provides opportunities for the commercial production of those valuable products. Hence the present study was planned to assess the variability of B. roxburghii in Southern India and identifying the superior genotypes based on the morphological characterization. A total of 45 accessions from 35 populations were collected and variation in 9 quantitative and 3 qualitative morphological traits related to fruits was analyzed. Fruit weight showed the highest variation, ranging from 10.23 g in the accession KA-04C to 37.69 g in TN-03. Pulp weight was ranged from 1.71 g in KA-04C to 10.24 g in TN-03. Seed kernel weight was highest in TE-04 (3.87 g) followed by KA-04A (3.21 g) and TE-05A (2.98 g). PCA analysis showed that fruit weight, fruit length, fruit width, pulp weight, rind weight, and endocarp weight were the major traits contributing to the diversity. Cluster analysis resulted in the formation of 4 groups and among them, 2 accessions of clusters 3 and 6 accessions of cluster 4 showed superior fruit characters by having the highest fruit weight, pulp weight, and seed kernel weight. Accessions of these groups could be considered in future domestication programs.

scholarly journals Inheritance of Fruit, Foliar, and Plant Habit Attributes in Capsicum

2008 ◽  
Vol 133 (3) ◽  
pp. 396-407 ◽  
Author(s):  
John R. Stommel ◽  
Robert J. Griesbach
Keyword(s):  
Plant Height ◽  
Leaf Shape ◽  
Leaf Length ◽  
Fruit Color ◽  
Broad Sense ◽  
Leaf Width ◽  
Broad Sense Heritability ◽  
Narrow Sense ◽  
Narrow Sense Heritability ◽  
Plant Habit

Considerable diversity exists in Capsicum L. germplasm for fruit and leaf shape, size, and color as well as plant habit. Using F1, F2, and backcross generations developed from diverse parental stocks, this report describes the inheritance patterns and relationships between unique foliar characters and diverse fruit and plant habit attributes. Our results demonstrate that pepper fruit color, shape, and fruit per cluster were simply inherited with modifying gene action. Broad-sense heritability for fruit color and shape and fruit per cluster was high, whereas narrow-sense heritability for these characters was moderate to low. Although fruit clustering was simply inherited, the number of fruit per cluster exhibited a quantitative mode of inheritance. High fruit counts per cluster were linked with red fruit color and anthocyanin pigmented foliage. Fruit shape was linked with immature fruit color and inherited independently of mature fruit color. Leaf color, length, and plant height were quantitatively inherited. Leaf shape did not vary, but leaf length varied and was positively correlated with leaf width. Broad-sense heritability for leaf characters, including leaf length, leaf width, and leaf color, was high. With the exception of leaf width, which exhibited low narrow-sense heritability, high narrow-sense heritability for leaf characters denoted additive gene action. Plant height displayed high broad-sense heritability. Moderate narrow-sense heritability suggested that additive effects also influence plant height. Analysis of segregating populations demonstrated that red and orange fruit color can be combined with all possible leaf colors from green to black. These results provide new data to clarify and extend available information on the inheritance of Capsicum fruit attributes and provide new information on the genetic control of leaf characters and plant habit.

scholarly journals PENGARUH KOLKISIN TERHADAP KARAKTER MORFOLOGI TANAMAN TERUNG (Solanum melongena L.)

2019 ◽  
Vol 2 (4) ◽  
pp. 155
Author(s):  
Dovy Andis Pradana ◽  
Sri Hartatik
Keyword(s):  
Plant Height ◽  
Cell Walls ◽  
Economic Value ◽  
Solanum Melongena ◽  
Morphological Characters ◽  
Fruit Weight ◽  
Leaf Length ◽  
Soaking Time ◽  
Colchicum Autumnale ◽  
Fruit Diameter

ABSTRACT The Eggplant (Solanum melongena L.) is one of the plant commodities that has high economic value. Eggplant production is still volatile so plant breeding with a colchicine mutation is needed to increase eggplant production. Colchicine is Colchicum autumnale seed extract which is able to weaken the spindle thread from the metaphase process to anaphase so that chromosome multiplication occurs without the formation of cell walls. Eggplant sprouts induced by different concentrations of colchicine, they are 0 ppm (K0), 100 ppm (K1), 200 ppm (K2) for 6 hours (L1), 12 hours (L2), 18 hours (L3) . The variables observed were morphological characters such as plant height, flowering age, fruit weight, fruit diameter, fruit length, leaf length, leaf width and stem diameter. The results of the treatment show concentration of colchicine and soaking time had a very significant effect on fruit diameter and fruit weight. K1L2 is the most effectif treatment on diameter and weigh of fruit.The concentration of colchicine has a significant effect on plant height and flowering age. The most effectif concentration in plant height and flowering age is K1. Keywords: Eggplant, Colchicine concentration, Soaking time of colchicine ABSTRAK Terung (Solanum melongena L.) merupakan salah satu komoditas tanaman dengan nilai ekonomis tinggi. Produksi terung masih fluktuatif sehingga pemuliaan tanaman dengan mutasi colchicine diperlukan untuk meningkatkan produksi terung. Colchicine merupakan ekstrak dari biji Colchicum autumnale yang mampu melemahkan untaian DNA dari proses metafase menjadi anafase, sehingga multiplikasi kromosom terjadi tanpa pembentukan dinding sel. Kecambah terung diinduksi dengan colchicine dalam konsentrasi yang berbeda, yaitu 0 ppm (K0), 100 ppm (K1), 200 ppm (K2) selama 6 jam (L1), 12 jam (L2), 18 jam (L3). Variabel yang diamati adalah karakter morfologi seperti tinggi tanaman, umur berbunga, berat buah, diameter buah, panjang buah, panjang daun, lebar daun dan diameter batang. Hasil percobaan menunjukkan konsentrasi colchicine dan waktu perendaman memiliki pengaruh yang sangat signifikan terhadap diameter buah dan berat buah. Perlakuan K1L2 merupakan perlakuan yang paling efektif mempengaruhi diameter dan berat buah. Konsentrasi colchicine memiliki efek signifikan terhadap tinggi tanaman dan usia berbunga. Konsentrasi paling efektif terhadap tinggi tanaman dan umur berbunga adalah K1. Kata Kunci: Terung, konsentrasi colchicine, waktu perendaman colchicine

scholarly journals Phenotypic and molecular variability of maize (Zea mays L.) Induced with X-ray

2021 ◽  
Vol 18 (2) ◽  
pp. 1-25
Author(s):  
Odunayo Joseph Olawuyi ◽  
David Franklin Igata ◽  
Akinlolu Olalekan Akanmu ◽  
Abeeb Abiodun Azeez
Keyword(s):  
Plant Height ◽  
Principal Component ◽  
Leaf Length ◽  
Leaf Width ◽  
Shoot Biomass ◽  
Leaf Biomass ◽  
Group Method ◽  
X Ray ◽  
Significant Difference ◽  
Number Of Leaves

Ten genotypes of maize collected from National Center for Genetic Resources and Biotechnology (NACGRAB) were induced with X-ray for morphological and molecular assessment. The experimental design was complete randomized design with four replicates. Morphological and molecular statistical analyses of treated genotypes were conducted using SAS and Power Maker Packages, respectively while dendrogram was generated using Jaccards similarity coefficient using Unweighted Paired Group Method and Arithmetic Averages (UPGMA). The study revealed significant difference which is an indication of genetic variation of characters in treated maize. Genotype DTSR-Wco performed best in plant height (62.35 cm), leaf length (62.35 cm), number of leaves (3.15), leaf width (7.55 cm) and dry leaf biomass (0.24 g). X-ray at 90 Kv/mass, 95 Kv/mass and 100 Kv/mass decreased plant heights to 54.25cm, 53.87cm and 54.10cm respectively compared to Control. Heritability estimate was greater than 70% for all characters evaluated. Genotype TZM 1551 at 0 Kv/mass yielded the highest concentration of DNA at 2841.60 ng/ul and the highest genomic DNA concentration was obtained at 95 Kv/mass for TZM 132 with 1.91%. Primer BMC 1755 was most polymorphic with 58.77% in treated maize genotypes. The plant height was strongly correlated with leaf length (r=0.9), leaf width (r=0.76) and number of leaves (r=0.77). Principal component analysis showed close relationship between plant height (-0.03) and leaf length (0.05) compared with leaf width (-0.67) and number of leaves (0.69). Dry shoot biomass (0.05) was closely related to dry root biomass (-0.03) and dry leaf biomass (-0.04).

scholarly journals Morphological diversities and associated preference traits in Peanut (Arachis hypogaea L.) landraces from central and southern Benin

2021 ◽  
Vol 15 (3) ◽  
pp. 1050-1061
Author(s):  
David Montcho ◽  
Pascal Gbénou ◽  
Antoine Abel Missihoun ◽  
Fiacre Assogba ◽  
Djidjoho A.T. Hodehou ◽  
...  
Keyword(s):  
Arachis Hypogaea ◽  
Principal Component ◽  
Morphological Characterization ◽  
Breeding Programs ◽  
Arachis Hypogaea L ◽  
Plant Habit ◽  
Group 3 ◽  
Pod Length ◽  
Trait Preferences

Peanut (Arachis hypogaea L.) production in Benin is limited by several biotic and abiotic stresses. The objectives of this study were to document varietal trait preferences and peanut genetic diversity for breeding programs. A survey in the South and Center of Benin and an agro-morphological characterization was carried out. Results showed that farmers used five criteria, namely yield (seeds and pods), size of seeds, number of seeds per pod, oil content, and quality of the paste for selecting a variety. The clustering based on ten qualitative traits showed a variability structure in three groups based on the leaflets shape, plant habit, and branching pattern. The principal component analysis carried out on the quantitative traits indicated six groups of accessions. The group 3 of the latest analysis is composed of Azii alorga and Kamalo with interesting characteristics and showing a good criteria as seeds size (SDL= 14.62 ± 0.48 mm), and pods size (average pod length and width respectively PoL = 33.70 ± 1.14 mm, Pow = 14.87 ± 0.29 mm). The results should be prioritized for breeding programs to improve the good criteria found in other peanut varieties. It will be helpful for farmers in selecting performant varieties.

scholarly journals Genetic diversity of some chili (Capsicum annuum L.) genotypes

2014 ◽  
Vol 4 (1) ◽  
pp. 32-35 ◽  
Author(s):  
MJ Hasan ◽  
MU Kulsum ◽  
MZ Ullah ◽  
M Manzur Hossain ◽  
M Eleyash Mahmud
Keyword(s):  
Genetic Diversity ◽  
Plant Height ◽  
Capsicum Annuum ◽  
Principal Component ◽  
Plant Canopy ◽  
Capsicum Annuum L ◽  
Quantitative Characters ◽  
Cluster Distance ◽  
Minimum Number ◽  
Branch Plant

A study on genetic diversity was conducted with 54 Chili (Capsicum annuum L.) genotypes through Mohalanobis’s D2 and principal component analysis for twelve quantitative characters viz. plant height, number of secondary branch/plant, canopy breadth , days to first flowering, days to 50% flowering, fruits/plant, 5 fruits weight, fruit length, fruit diameter, seeds/fruit, 1000 seed weight and yield/plant were taken into consideration. Cluster analysis was used for grouping of 54 chili genotypes and the genotypes were fallen into seven clusters. Cluster II had maximum (13) and cluster III had the minimum number (1) of genotypes. The highest inter-cluster distance was observed between cluster I and III and the lowest between cluster II and VII. The characters yield/plant, canopy breadth, secondary branches/plant, plant height and seeds/fruit contributed most for divergence in the studied genotypes. Considering group distance, mean performance and variability the inter genotypic crosses between cluster I and cluster III, cluster III and cluster VI, cluster II and cluster III and cluster III and cluster VII may be suggested to use for future hybridization program. DOI: http://dx.doi.org/10.3329/ijarit.v4i1.21088 Int. J. Agril. Res. Innov. & Tech. 4 (1): 32-35, June, 2014

scholarly journals Development of a core collection for Sri Lankan cinnamon germplasm based on morphological characterization using an eco-geographic survey

2019 ◽  
pp. 1473-1485
Author(s):  
Rumana Azad ◽  
L. Jayasekara ◽  
R.A.A.K. Ranawaka ◽  
Gamini Senanayake ◽  
K.L. Wasantha Kumara ◽  
...  
Keyword(s):  
Vegetative Propagation ◽  
Core Collection ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Morphological Characterization ◽  
Leaf Length ◽  
Ex Situ ◽  
Germplasm Management ◽  
Sri Lankan ◽  
The Core

Cinnamomum verum is the most important spice produced by Sri Lanka. This study was carried out to fill the gap of knowledge on diversity of Sri Lankan cinnamon through morphological characterization. Therefore, an eco-geographic survey in major growing areas followed by the development of a core collection and vegetative propagation of the total collection for ex-situ conservation were carried out. Two hundred and sixty nine cinnamon accessions were collected. The average shoot regeneration frequency of 269 accessions was 47.76% after one month of vegetative propagation. The collection was established at Faculty of Agriculture, University of Ruhuna for further studies. The collection was characterized for 15 quantitative and qualitative characters of leaf, stem and inflorescence among which, a wide variation was detected for leaf characters mainly. Leaf length positively correlated with Leaf width (+0.643) and Petiole length (+0.483). Principal component analysis (PCA) revealed that there were 3 dimensions of PCA explaining 88.85% of total variance. In Hierarchical cluster analysis based on above characters, 269 accessions were grouped into five clusters at rescaled distance of 0.1. A representation of 10% accessions was randomly selected from each cluster to develop a core collection with 33 accessions. The core collection of 33 accessions was clustered into five groups according to the same method at rescaled distance of 0.075. The core collection is a representation of the total collection as clusters of the two dendograms could be overlapped. Morphological characterization and core collection development during this study will be useful for germplasm management, conservation and varietal improvement through breeding programmes.

scholarly journals Principal Component Analysis Approach for Comprehensive Screening of Tomato Germplasm for Polyhouse Condition

2021 ◽  
pp. 67-72
Author(s):  
Anuradha Sinha ◽  
Paramveer Singh ◽  
Ajay Bhardwaj ◽  
R. B. Verma
Keyword(s):  
Ascorbic Acid ◽  
Plant Height ◽  
Principal Component ◽  
Titratable Acidity ◽  
Factor Loading ◽  
Fruit Weight ◽  
Polar Diameter ◽  
Final Harvest ◽  
Positive Factor ◽  
Β Carotene

Yield and yield contributing attributes are the mostly targeted in tomato improvement programme so the existence of variability has prime importance in plant breeding. In this study 14 genotypes were assessed with principal component analyses (PCA) based on morphological and biochemical traits to select genotypes and traits for future breeding program. Based on the PCA with 21 traits, 14 components were formed however, 6 PCs had more than 1 Eigen value with the variability of 87.60%. So, these six PC were used for further explanation. The first principal component explained maximum variability of the total variation presented. PC1 correlated with days to first flowering, days to 50% flowering and days to first fruiting etc. while PC2 dominated by β- carotene, lycopene, total soluble solid and ascorbic acid. PC 3 correlated with the traits like plant height at final harvest, number of fruits per plant and days to 50% flowering. PC 4 reflected positive factor loading by polar diameter, days taken to first picking and plant height at final harvest. PC 5 correlated with polar diameter, node to first flowering and ascorbic acid with positive factor loading and PC 6 correlated with ascorbic acid, days to 50% flowering, number of fruits per truss, equatorial diameter, pericarp thickness, titratable acidity, β-carotene, average fruit weight, fruit yield per plant. Therefore, the important traits coming jointly from diverse PCs and contributing towards elucidation variability may be kept into consideration during utilization of these traits in breeding programme of tomato.

scholarly journals Genetic diversity in a collection of ornamental squash (Cucurbita pepo L.)

Genetika ◽  
2014 ◽  
Vol 46 (1) ◽  
pp. 199-207 ◽  
Author(s):  
Emina Mladenovic ◽  
Janos Berenji ◽  
Vladislav Ognjanov ◽  
Mirjana Ljubojevic ◽  
Jelena Cukanovic ◽  
...  
Keyword(s):  
Core Collection ◽  
Quantitative Traits ◽  
Cucurbita Pepo ◽  
Morphological Characterization ◽  
Fruit Weight ◽  
Leaf Length ◽  
Future Studies ◽  
Qualitative And Quantitative ◽  
Wide Range ◽  
The World

The aim of this study is collecting and preserving of unique Cucurbita pepo germplasm in Serbia. This study also describes the intraspecific variation of C. pepo within twenty germplasm accessions. Conservation work aimed to develop a representative core collection of C. pepo germplasm, to guide future studies and breeding of its ornamental use. A wide range of C. pepo germplasm was collected from diferent parts of the world. Nineteen variables were recorded in 20 varieties to determine the overall degree of polymorphism and to detect similarities among them. Qualitative traits of fruit such is shape, color and texture, showed immense variation. Coefficient of variation were highest for fruit length, fruit weight and number of fruits per plant (CV=56.69161.32%), while they were the lowest for leaf length (CV=20.65%). Morphological characterization is need to facilitate the use of C. pepo varieties in breeding work. Based on the PCA results, 20 accessions of squash are separate in five groups. Those groups are unique in qualitative and quantitative traits. Knowledge of genetic divergence among varieties is essential for breeding.

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