scholarly journals Genetic divergence analysis of deshi jute (Corchorus capsularis) based on fibre yield and its attributing traits

2020 ◽  
Vol 31 (1) ◽  
pp. 26-35
Author(s):  
A Miah ◽  
NR Saha ◽  
MY Ali ◽  
M Kamrujjaman ◽  
MSMS Parvej ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Genetic Divergence ◽  
Experimental Plant ◽  
Base Diameter ◽  
Core Diameter ◽  
Plant Materials ◽  
Corchorus Capsularis ◽  
Fibre Yield ◽  
Research Institute

Commercially important natural fibres considered as fiber of the future are obtained from the bark of two jute species (Corchorus capsularis L. and Corchorus olitorius L.), and they are cultivated in different south-east Asian countries including India and Bangladesh. Unfortunately, they are characterized by narrow genetic variability for adaptability to not only various agronomic environments, but also fibre yield, quality and susceptibility to diseases and pests. Therefore, research on genetic divergence in this crop is very important in formulating a successful breeding program for evolving cultivars superior in both yield and quality to cater to the increasing demand of value added jute products in the domestic and international markets. In our study, which was conducted at the Central Jute Research Experiment Station of Bangladesh Jute Research Institute (BJRI), during Kharif seasons of 2015.44 accessions of deshi jute (Corchorus capsularis L.) originated from different countries and two varieties CVL-1 and CVE-3 (developed from Bangladesh Jute Research Institute) as check were investigated to study the genetic variability, genetic diversity and degree of association of different component characters related to fiber yield. The seeds of experimental plant materials were grown in Randomized Complete Block Design with three replications. Statistical analysis was run to find out the genotypic and phenotypic variances, correlations and cluster analysis for fibre yield related traits namely technical height (m), leaf angle (dg), leaf length (cm), leaf width (cm), petiole length (cm), node no., base diameter (mm), middle diameter (mm), top diameter (mm), core diameter (mm), dry fibre weight (g), dry stick weight (g). Highly significant differences were observed among the genotypes for all the characters. Substantial amounts of genotypic variance were also obtained for all characters. Fibre weight was significantly and positively correlated with node no., base diameter, middle diameter, top diameter and core diameter. The clustering pattern revealed considerable amount of genetic diversity observed among the genotypes studied here and the accessions were grouped into five clusters. From two years’ evaluation it was revealed that the accessions 2512, 2445, 2749 and 2533performed better in most of the cases than the control varieties CVL-1 and CVE-3. These accessions may be used as parents for future variety development program. Progressive Agriculture 31 (1): 26-35, 2020

scholarly journals Determining Genetic Diversity of Deshi Jute (Corchorus capsularis) for the Improvement of Fibre Yield and Associated Traits

2020 ◽  
pp. 66-71
Author(s):  
Arju Miah ◽  
A.K.M. Shahadat Hossain ◽  
Nihar Ranjan Saha ◽  
Md. Younus Ali ◽  
Md. Jahangir Alam ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Cluster Analysis ◽  
Block Design ◽  
Development Program ◽  
Experimental Plant ◽  
Plant Materials ◽  
Corchorus Capsularis ◽  
Research Experiment ◽  
Fibre Yield ◽  
Research Institute

Commercially important natural fibres considered as fiber of the future are cultivated in different south-east Asian countries including India and Bangladesh. Unfortunately, they are characterized by limited genetic variation in terms of yield, quality and susceptibility to diseases and pests. Therefore, genetic deviation studies are crucial to develop a successful cultivation program to develop varieties to meet the growing demand for domestic and foreign jute products. In our study, which was conducted at the Central Jute Research Experiment Station of Bangladesh Jute Research Institute (BJRI), during Kharif seasons of 2014. 44 Thirteen progenies (1546, 1548, 4311, 4328, 4330, 4337, 4339, 5007, 6702/A, 6702/B, 6772, 6787, 6790) and two check varieties CVL-1 and CVE-3 (developed from Bangladesh Jute Research Institute) were investigated to study the genetic variability, genetic diversity and degree of association of different component characters related to fiber yield. The seeds of experimental plant materials were grown in Randomized Complete Block Design with three replications. Statistical analysis was run to find out the genotypic and phenotypic variances, correlations and cluster analysis for fibre yield related traits namely plant height (m), base diameter (cm), stick weight (g), fiber weight (g). Highly significant differences were observed among the genotypes for all the characters. Cluster analysis divided the accessions and varieties into four cluster. From our evaluation it was revealed that the treatment number 4337/06, 4339/06 and 6702/A performed better in most of the cases than the control varieties CVL-1 and CVE-3. These accessions may be used as parents for future variety development program.

scholarly journals Assessment of genetic divergence of deshi jute (Corchorus capsularis) germplasms by using phenotypic characters

2020 ◽  
Vol 31 (1) ◽  
pp. 10-18
Author(s):  
A Miah ◽  
NR Saha ◽  
MY Ali ◽  
M Kamrujjaman ◽  
MSMS Parvej
Keyword(s):  
Genetic Divergence ◽  
Agronomic Traits ◽  
Seed Traits ◽  
Base Diameter ◽  
Qualitative Traits ◽  
Phenotypic Characters ◽  
Corchorus Capsularis ◽  
Fiber Traits ◽  
Stem Colour ◽  
Range Of Variation

Twenty-two morpho-agronomic traits of 42 jute genotypes, including 4 varieties with 38 accessions of C. capsularis were evaluated to assess the extent and patterns of variability and their relationships. Seed traits exhibited a wider range of variation than fiber traits. Qualitative traits were also the most informative. Considerable ranges of variability were observed in stem colour, petiole colour, stipule colour, plant technical height, base diameter, dry fibre weight and dry stick weight. Based on major yield contributing characters’ accessions 628, 633, 635 and 646 performed better in most of the cases than the control variety   CVL-1, CVE-3, BJC-7370 and BJC-83. Progressive Agriculture 31 (1): 10-18, 2020

scholarly journals combining ability for yield and yield contributing characters of white jute (Corchorus capsularis L.)

1970 ◽  
Vol 39 (1) ◽  
pp. 79-85
Author(s):  
Rahima Khatun ◽  
RH Sarker ◽  
MA Sobhan
Keyword(s):  
Key Words ◽  
Plant Height ◽  
Combining Ability ◽  
Reciprocal Cross ◽  
General Combining Ability ◽  
Predominant Role ◽  
Base Diameter ◽  
Corchorus Capsularis ◽  
Additive Gene ◽  
Fibre Yield

Crosses were made between three varieties and seven accessions of white jute (Corchorus capsularis L.) in all possible combinations to establish 10 × 10 full diallel set. Variances for general combining ability (GCA) and specific combining ability (SCA) were significant or highly significant for all the characters indicating additive and non-additive gene actions played predominant role for expression of these characters. The magnitudes of GCA variance were higher than the corresponding SCA variance confirmed the predominance of additive genetic variations for these traits. The variety CVL-1 and Acc. 1831 were good general combiners for plant height, technical height, base diameter, number of nodes, bark weight, fibre weight and stick weight. Crosses, var. CVL-1 × Acc. 1831, Accs. 3695 × 4087, Accs. 1831 × 1833, Accs.1831 × var.CC-45, Acc. 2146 × var. A-38 and Acc. 2146 × var.CC-45 revealed significant positive SCA effect for fibre weight. Significant reciprocal SCA effect was observed in crosses, Accs.1832 × 3695, Accs.1833 × 1831 and Acc. 4087 × var.CVL-1. Crosses, var. CVL-1 × Acc.1831, Accs. 3695 × 4087, Acc.1831 × var.CC-45, Acc.2146 × var.CC-45 and a reciprocal cross, Accs.1833 × 1831 were found to be good specific combiners for bark weight, fibre weight and stick weight. Key words: Combining ability; Fibre yield; White jute DOI: 10.3329/bjb.v39i1.5530Bangladesh J. Bot. 39(1): 79-85, 2010 (June)

scholarly journals Effect of preceding rabi crops on yield of succeeding Deshi and Tossa jute

2015 ◽  
Vol 17 (2) ◽  
pp. 15-19
Author(s):  
MA Khan ◽  
SMA Hossain ◽  
M Jahiruddin ◽  
M Salim ◽  
MA Hossain
Keyword(s):  
Plant Height ◽  
Harvest Index ◽  
Block Design ◽  
Fallow Land ◽  
Base Diameter ◽  
Randomized Complete Block Design ◽  
Sharp Variation ◽  
Fibre Yield ◽  
Rabi Crops ◽  
Research Institute

An experiment was conducted at the Jute Research Regional Station, Kishoreganj of Bangladesh Jute Research Institute, during 2001-2002 and 2002-2003 to find out the effects of preceding crops, viz. wheat, potato, lentil, and fallow on yield of succeeding jute crops. The experiment was laid out in a randomized complete block design with four replications. The results revealed that plant height and base diameter of CVL-1 and O-9897 were not affected significantly by the preceding rabi crops. The fibre and stick yields of both the jute varieties were affected significantly. The highest fibre yield of CVL-1 (3.90 t ha-1 and 3.77 t ha-1) and O-9897 (3.51 t ha-1 and 2.93 t ha-1) was recorded when those were grown after potato and the yield was the lowest when grown after wheat and fallow land in both the years. There was no sharp variation in harvest index, which showed inconsistent between the years.Bangladesh Agron. J. 2014, 17(2): 15-19

scholarly journals Assessment of Genetic Diversity using D2 Statistics in Chickpea (Cicer arietinum L.) under Late Sown Conditions

2021 ◽  
pp. 48-53
Author(s):  
Velugoti Priyanka Reddy ◽  
Gaibriyal. M. Lal ◽  
Subhadra Pattanayak ◽  
Jakkam Mahipal Reddy
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Plant Breeding ◽  
Cicer Arietinum ◽  
Analysis Of Variance ◽  
Genetic Divergence ◽  
Indian Institute ◽  
Cicer Arietinum L ◽  
Cluster Distance ◽  
Selection Of

An experiment was conducted during Rabi, 2019-20 at Department of Genetics and Plant Breeding, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj (Allahabad) consisting of 36 chickpea genotypes obtained from ICAR-Indian Institute of Pulses Research, Kanpur, U.P in RBD with three replications. The data was recorded on 13 traits to study the genetic divergence. Analysis of variance revealed that there was considerable genetic variability in the available germplasm for all the characters studied. Divergence analysis revealed that highest inter cluster distance (1505.25) was found between clusters I and V indicates that there is ample scope for selection of better parents.

scholarly journals Genetic Variability of 15 Robusta Coffee Genotypes Selected by Farmer Based on SSRs Markers

2014 ◽  
Vol 1 (2) ◽  
pp. 87
Author(s):  
Syafaruddin Syafaruddin ◽  
Enny Randriani ◽  
Dani Dani ◽  
Indah Sulistyorini ◽  
M. B. Pabendon
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Coffea Canephora ◽  
Coffee Plantations ◽  
Robusta Coffee ◽  
Allele Number ◽  
Grafting Technique ◽  
Ssrs Markers ◽  
Biology Laboratory ◽  
Research Institute

<p>Robusta coffee (Coffea canephora) has been grown widely in Indonesia, especially in Bengkulu Province. For the last few decades, some farmers have been selected and developed several Robusta clones through plagiotropic shoot grafting technique to replace earlier coffee populations which were derived from seed. Hence, it would reduce the genetic diversity of Robusta coffee at farmer’s field. To understand the genetic variability among 15 Robusta coffee genotypes selected by farmer, it is important to perform molecular analysis. Leaf samples of 15 Robusta coffee genotypes selected by farmer were collected from smallholder Robusta coffee plantations in Bengkulu Province. Genetic diversity analysis was conducted in the Germplasm, Breeding, and Biotechnology Laboratory of Indonesian Industrial and Beverage Crops Research Institute (IIBCRI), and Molecular Biology Laboratory, Indonesian Cereals Research Institute (ICERI). DNA samples were amplified using 34 SSRs markers. The result showed that 23 out of 34 SSRs markers had high polymorphism levels. Allele number per locus ranged from 2-8 with an average of 4 alleles per locus. Dendrogram analysis based on genetic similarity was obtained with score of about 0,44-0,79, and r score = 0,92 (good fit). Based on cluster analysis as well as PCoA analysis, there are three distinct groups of genotypes. Those three groups can be distinguished by specific character of leaf morphotype. Nevertheless, the majority of genotypes were clustered together into the single group. This indicates narrow genetic diversity among Robusta genotypes that selected by farmer.</p><p>Kopi Robusta telah dikembangkan secara luas di Indonesia, khususnya di Provinsi Bengkulu. Beberapa dekade terakhir sebagian petani telah menyeleksi dan mengembangkan beberapa genotipe dengan teknik sambung tunas plagiotrop untuk merehabilitasi populasi kopi Robusta asal biji. Oleh sebab itu, terdapat peluang terjadinya penurunan keragaman genetik kopi Robusta di lahan petani. Analisis molekuler perlu dilakukan untuk mengevaluasi keragaman genetik antar 15 genotipe kopi Robusta hasil seleksi petani. Kegiatan analisis keragaman genetik dilaksanakan di Laboratorium Plasma Nutfah, Pemuliaan, dan Bioteknologi, Balai Penelitian Tanaman Industri dan Penyegar (Balittri), Sukabumi dan Laboratorium Biologi Molekuler, Balai Penelitian Tanaman Serealia (Balitsereal), Maros. DNA diamplifikasi dengan menggunakan 34 marka SSR. Hasil penelitian menunjukkan bahwa 23 dari 34 marka SSR yang digunakan mampu menghasilkan tingkat polimorfisme yang tinggi. Jumlah alel berada pada kisaran 2-8 alel per lokus dengan rata-rata 4 alel per lokus SSR. Analisis dendrogram berdasarkan kemiripan genetik diperoleh dengan skor sekitar 0,44-0,79 dan skor r = 0,92 (good fit). Berdasarkan hasil analisis gerombol dan analisis komponen utama diketahui bahwa terdapat tiga kelompok genotipe. Masing-masing kelompok dapat dibedakan berdasarkan karakter morfotipe daun. Meskipun demikian, sebagian besar genotipe diklasifikasikan ke dalam satu kelompok. Ini menandakan bahwa keragaman genetik klon-klon kopi Robusta hasil seleksi petani cenderung rendah.</p><p>Keywords: Coffea canephora, klon plagiotropik, kehilangan genetik</p>

scholarly journals ​Estimation of Genetic Variability and Genetic Divergence in Dolichos Bean [Lablab purpureus (L.) Sweet.] Genotypes

2021 ◽  
Author(s):  
Udit Kumar ◽  
Pramila . ◽  
K. Prasad ◽  
R.K. Tiwari ◽  
Saipayan Ghosh ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Coefficient Of Variation ◽  
Genetic Divergence ◽  
Mean Value ◽  
Yellow Mosaic Virus ◽  
Lablab Purpureus ◽  
Wide Range ◽  
Cluster Distance ◽  
Maturity Period

Background: Dolichos bean is an important leguminous vegetable having a wide range of variation in different quantitative characters. Assessing genetic diversity among dolichos bean accessions can ensure development of suitable high-yielding and adapted varieties with suitable maturity period. Methods: Fifteen genotypes were evaluated for different characters in Dolichos bean at two locations of Dr. Rajendra Prasad Central Agricultural University viz. Vegetable Research Farm, Pusa and Krishi Vigyan Kendra, Birauli, Samastipur, Bihar during the year 2018-19 and pooled data was analyzed. The genotypes were evaluated for genetic variability and genetic divergence for 14 characters. For the assessment of genetic diversity among the fifteen genotypes of dolichos bean, Mahalanobis (D2) statistic (Mahalanobis, 1936) was used, following the procedure given by Rao, 1952. Grouping of genotypes into clusters was done using Tocher’s method as described by Rao, 1952. Result: Phenotypic Coefficient of Variation (PCV) was slightly higher than Genotypic Coefficient of Variation (GCV) for all the characters indicated that the characters were less influenced by environment. The characters having high heritability and high genetic advance include harvesting duration, number of pods per plant, pod length, pod diameter, individual pod weight, weight of seeds per pod, 100 fresh green seed weight, pod yield and percent incidence of yellow mosaic virus. Therefore, selection for above characters is highly effective. Genetic diversity analysis evaluated that all genotypes could be placed into 6 clusters. Genotypes grouped in Cluster III and I have highest mean value for all characters as well as highest inter-cluster distance.

scholarly journals Genetic polymorphism among natural populations of Anacardium humile A. ST-HIL

2020 ◽  
Vol 42 (1) ◽  
Author(s):  
Silvia Correa Santos ◽  
Raquel dos Santos Carvalho ◽  
Livia Maria Chamma Davide
Keyword(s):  
Genetic Diversity ◽  
Genetic Polymorphism ◽  
Genetic Variability ◽  
Genetic Divergence ◽  
Genomic Dna ◽  
Reproductive Strategies ◽  
Rapd Markers ◽  
Phenotypic Diversity ◽  
Diversity Index ◽  
Natural Populations

Abstract The genus Anacardium presents nine species, of these, three have sub-bush size, common in the Cerrado of the Center-West of Brazil. The objective of this work was to evaluate the genetic variability of the species, collected in eleven provenances, using RAPD markers. Genomic DNA from 122 accessions was extracted and amplified with 25 decamer primers. The results indicated polymorphism, ranging from 77.71% to 96.18%. The distribution of genetic diversity among and within populations shows that 27.14% of the variability is found between populations and 37.44% within the populations, suggesting the existence of genetic variability that may be related to the reproductive strategies adopted by the species throughout its evolution. The index of variation within the provenances (93.36%) was higher than the index found among populations (6.64%). Molecular analysis indicated that there is genetic divergence between and within the studied populations of Anacardium humile A. St. - Hill. The origin of Itajá-GO presented the highest genetic diversity, presenting the highest values of genetic diversity index, phenotypic diversity and higher percentage of polymorphic loci.

scholarly journals Genetic divergence and genetic gain in bread wheat through selection practices

1970 ◽  
Vol 9 (1) ◽  
pp. 1-4 ◽  
Author(s):  
M Ferdous ◽  
UK Nath ◽  
A Islam
Keyword(s):  
Genetic Diversity ◽  
Disease Resistance ◽  
Genetic Variability ◽  
Plant Breeding ◽  
Bread Wheat ◽  
Genetic Gain ◽  
Genetic Divergence ◽  
Selection Index ◽  
Selection Indices ◽  
Selection Practices

Genetic diversity is essential to meet the diversified goals of plant breeding such as producing cultivars with increased yield, wider adaptation, desirable quality, pest and disease resistance. In this study genetic diversity and selection index of 24 genotypes of bread wheat were evaluated. The performance of 24 wheat genotypes showed that there were significant variations for the characters suggesting the presence of genetic variability among the genotypes. The genotypes were grouped into five clusters viz. I, II, III, IV and V based on Mahalanobis’ D2 statistics. Cluster I and II were the largest group containing six genotypes and the rest three clusters contained four, five and three genotypes respectively. The genotyps belonging to the same group had smaller D2- value than between those belonging to different clusters. Study on selection indices through discriminate function showed that Anza ranked as the best followed by the genotypes Rawal, PBW-373 and Kheri and suggests that these highest scoring genotypes might be recommended for farmers’ cultivation for better yield and it would be expected genetic gain upto 49.77% through selection practices based on the characters studied. Therefore, a crossing programme could be made among the genotypes belonging in cluster I and cluster V will provide maximum heterotic combination, especially for yield of bread wheat. Alternatively, among the studied genotypes Anza could be cultivated for better performance. Keywords: Genetic divergence; Genetic gain; Selection indices; Bread wheatDOI: http://dx.doi.org/10.3329/jbau.v9i1.8736 JBAU 2011; 9(1): 1-4

scholarly journals Analyses of variability, euclidean clustering and principal components for genetic diversity of eight Tossa Jute (Corchorus olitorius L.) genotypes

2020 ◽  
Vol 7 (4) ◽  
Author(s):  
Md. Mia Mukul ◽  
Nargis Akter ◽  
Md. Golam Mostofa ◽  
Md. Sohanur Rahman ◽  
Md. Al-Emran Hossain ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Plant Height ◽  
Principal Components ◽  
Morphological Traits ◽  
Block Design ◽  
Crop Improvement ◽  
Principal Component ◽  
Higher Plant ◽  
Fibre Yield

An investigation was done to assess the genetic variability, character associations, and genetic diversity of eight jute genotypes for seven morphological traits in a randomised complete block design at Bangladesh Jute Research Institute during 15 March, 2018 to 31 December, 2019. Analyses results revealed significant differences (P<0.01) among all genotypes for studied traits indicating the presence of variability. All the lines performed better than one control (JRO-524), and the line (O-0412-9-4) provided good results for desired traits than all controls. Jute fibre yield showed the highest broad sense heritability (98.54%). The studied jute morphological traits i.e. Plant population, the plant height, green weight, dry fibre yield and dry stick yield gave high heritability along with high genotypic and phenotypic variances, genetic advances in percent of the mean, highly significant and positive correlations. It indicates the possibility of crop improvement through phenotypic selection and maximum genetic gain, simultaneously at the genotypic-phenotypic level. Clustering analysis grouped all genotypes into three distinct clusters. The cluster II showed the highest mean values for all traits followed by cluster I and III. The first two principal components with higher Eigen values (>1.0) accounted for 90.88% of the total variation in the principal component analysis. PCA and cluster analyses indicated that the advanced breeding line O-0412-9-4 made its individual cluster II with higher inter-cluster distance and higher fibre yield (3.12 t ha-1). The investigation was done to select the genotype(s) with good fibre yield and distinct features in respect of developing high yielding Tossa jute variety for cultivation in the farmers’ field. This genotype O-0412-9-4 was selected based on higher plant height, base diameter, fibre yield content. It will be developed as a high yielding variety considering its’ higher genetic variability, heritability, genetic advance, significant associations for desirable characters.

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