scholarly journals Variability, correlation and path co-efficient analysis of bitter gourd (Momordica charantia L.)

2016 ◽  
Vol 40 (4) ◽  
pp. 607-618 ◽  
Author(s):  
MH Khan ◽  
SR Bhuiyan ◽  
KC Saha ◽  
MR Bhuyin ◽  
ASMY Ali
Keyword(s):  
Genetic Parameters ◽  
Fruit Weight ◽  
Momordica Charantia ◽  
Bitter Gourd ◽  
Fruit Length ◽  
Wide Variability ◽  
Effect On Yield ◽  
Positive Direct ◽  
Positive Effect ◽  
Fruit Diameter

Seventeen genotypes of bitter gourd (Momordica charantia L.) were studied in a field experiment conducted at the experimental field of Sher-e-Bangla Agricultural University, Dhaka, during April 2009 to September 2010. The objectives of the study were to measure the variability among the genotypes for yield and yield contributing characters, estimate genetic parameters, association among the characters and their contribution to yield. There was a great deal of significant variation for all the characters among the genotypes. Considering genetic parameters high genotypic co-efficient of variation (GCV) was observed for branches per vine, yield per plant and number of fruit per plant whereas low genotypic co-efficient of variation (GCV) was observed for days to first male and female flowering. In all the cases, it was found that phenotypic co-efficient of variation was greater than genotypic co-efficient of variation. Highest genotypic and phenotypic co-efficient of variation was observed in branch per vine, fruit length, fruit weight and number of fruit plant which indicated a wide variability among the genotypes and offered better scope of selection. The results obtained showed that fruit length showed low direct and positive effect on yield per plant and indirect positive effect on yield per plant via fruit diameter and average fruit weight. Similar result was found for fruit diameter. Average fruit weight and number of fruits per plant showed high direct and positive effect on yield per plant. Path analysis revealed that average fruit weight, number of fruits per plant, days to male flowering and fruit length had positive direct effect on fruit yield. Considering group distance and the agronomic performance, the inter genotypic crosses between G2& G5; G2&G14; G14&G15; G2&G15; G10&G11; G10&G13; G11&G13; G5&G15; G5&G14 might be suitable choice for future hybridization programme.Bangladesh J. Agril. Res. 40(4): 607-618, December 2015

scholarly journals Correlation and Path Coefficient Analysis for Morphological and Biochemical Traits in Diverse Pomegranate (Punica granatum L.) Genotypes

2019 ◽  
pp. 1-9
Author(s):  
Nusrat Perveen ◽  
Sarvamangala S. Cholin ◽  
Kulapati Hipparagi ◽  
G. Prabhuling ◽  
B. N. S. Murthy ◽  
...  
Keyword(s):  
Punica Granatum ◽  
Fruit Weight ◽  
Path Coefficient ◽  
Biochemical Traits ◽  
Fruit Length ◽  
Positive Direct ◽  
Positive Effect ◽  
Punica Granatum L ◽  
Fruit Diameter ◽  
Selection Of

The present experiment was conducted to study the correlation and path coefficient analyses among some morphological and biochemical traits of twenty-three pomegranate genotypes. Results of correlation analysis showed a high, positive and statistically significant (at 0.1% P) correlation between fruit weight and fruit length (r= 0.897), peel weight (r=0.931), fruit volume (r= 0.67), fruit diameter (r=0.554) and total number of arils per fruit (r=0.428). Peel weight exerted direct positive effect as well indirect positive effect on fruit weight through characters like fruit volume, fruit length, total no. of arils per fruit, aril weight and fruit diameter while among the biochemical traits, fruit juiciness exerted maximum positive direct effect on TSS (0.298). The results suggested that these traits could be used for indirect selection of genotypes for higher yield and fruit quality traits will be suitable for cultivation as well as for use in breeding programme.

scholarly journals Correlation and Path Analysis Quantitative Character of 20 Genotype Chilli (Capsicum annuum L.)

2020 ◽  
Vol 2 (1) ◽  
pp. 10-18
Author(s):  
Yunandra Yunandra ◽  
Muhamad Syukur ◽  
Elza Zuhry ◽  
Deviona Deviona ◽  
Deviona Deviona
Keyword(s):  
Path Analysis ◽  
Direct Effect ◽  
Fruit Weight ◽  
Leaf Length ◽  
Leaf Width ◽  
Effect On Yield ◽  
Positive Direct ◽  
Pericarp Thickness ◽  
Fruit Diameter ◽  
Selection Of

ABSTRACT Chili high yield is the target of plant breeding. High yielding chili selection can be done through direct selection of yield characters and indirectly through other characters. Indirect selection is more efficient than the selection of one character. This research aims to study the relationship between quantitative characters with yield as well as obtaining the selection criteria. Correlation analysis results showed that the fruit weight, fruit diameter, pericarp thickness, leaf width, and leaf length were positively correlated and were very significant on yield. Based on the path analysis, characters that have a positive direct effect on yield are fruit weight, fruit diameter, leaf width, and leaf length, while pericarp thickness had a negative direct effect but had a large indirect effect on yield.

scholarly journals Character association and path coefficient analysis for identification of yield enhancing characters in snake gourd (Trichosanthes anguina L.)

2016 ◽  
Vol 3 (2) ◽  
pp. 57-65
Author(s):  
S Islam ◽  
R Hasan ◽  
A Bashar ◽  
MK Hossain ◽  
AKM M Huque ◽  
...  
Keyword(s):  
Correlation Coefficients ◽  
Direct Selection ◽  
Path Coefficient ◽  
Path Coefficient Analysis ◽  
Fresh Weight ◽  
Fruit Length ◽  
Selection For ◽  
Effect On Yield ◽  
Positive Direct ◽  
Positive Effect

Correlations and path coefficient were studied in seven snake gourd genotypes namely Turag, Surma, Vorosa, Manghosito, Jhumlong, Green nitch and Monosha for yield and eleven yield contributing characters. The correlation coefficients were determined to find out the interrelationship among the characters studied. The correlation studies revealed that, yield/plant had positive and highly significant correlation both in phenotypic and genotypic level with fresh weight/fruit, fruit girth, fruits/plant, plant height and fruit length which indicated that yield could be increased by selecting these characters. Direct and indirect effects were measured using path coefficient analysis in order to obtain mechanisms of interrelationship between yield/plant and its components. The highest positive direct effect (0.9763) on yield/plant was found in fresh weight/fruit followed by fruits/plant (0.4179) and fruit length (0.2665). The characters showed direct positive effect on yield/plant indicated that direct selection for these traits might be effective for improving yield through selection in snake gourd.Jahangirnagar University J. Biol. Sci. 3(2): 57-65, 2014 (December)

scholarly journals Genetic analysis and QTL mapping of yield and fruit traits in bitter gourd (Momordica charantia L.)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
P. Gangadhara Rao ◽  
T. K. Behera ◽  
Ambika B. Gaikwad ◽  
A. D. Munshi ◽  
Arpita Srivastava ◽  
...  
Keyword(s):  
Crop Improvement ◽  
Genotyping By Sequencing ◽  
Interval Mapping ◽  
Fruit Weight ◽  
Momordica Charantia ◽  
Additive Effect ◽  
Bitter Gourd ◽  
Fruit Flesh ◽  
Trait Score ◽  
Fruit Diameter

AbstractBitter gourd (Momordica charantia L.) is an economically important vegetable crop grown in tropical parts of the world. In this study, a high-density linkage map of M. charantia was constructed through genotyping-by-sequencing (GBS) technology using F2:3 mapping population generated from the cross DBGy-201 × Pusa Do Mausami. About 2013 high-quality SNPs were assigned on a total of 20 linkage groups (LGs) spanning over 2329.2 CM with an average genetic distance of 1.16 CM. QTL analysis was performed for six major yield-contributing traits such as fruit length, fruit diameter, fruit weight, fruit flesh thickness, number of fruits per plant and yield per plant. These six quantitative traits were mapped with 19 QTLs (9 QTLs with LOD > 3) using composite interval mapping (CIM). Among 19 QTLs, 12 QTLs derived from ‘Pusa Do Mausami’ revealed a negative additive effect when its allele increased trait score whereas 7 QTLs derived from ‘DBGy-201’ revealed a positive additive effect when its allele trait score increased. The phenotypic variation (R2%) elucidated by these QTLs ranged from 0.09% (fruit flesh thickness) on LG 14 to 32.65% (fruit diameter) on LG 16 and a total of six major QTLs detected. Most QTLs detected in the present study were located relatively very close, maybe due to the high correlation among the traits. This information will serve as a significant basis for marker-assisted selection and molecular breeding in bitter gourd crop improvement.

scholarly journals Genetic divergence in commercial cucumber (Cucumis sativus L.) genotypes

2018 ◽  
Vol 44 (2) ◽  
pp. 201-207
Author(s):  
Rokib Hasan ◽  
Mohammed Kamal Hossain ◽  
Nazmul Alam ◽  
Abul Bashar ◽  
Saidul Islam ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Path Analysis ◽  
Genetic Divergence ◽  
Fruit Weight ◽  
Leaf Length ◽  
Cucumis Sativus L ◽  
Cluster Distance ◽  
Effect On Yield ◽  
Positive Direct ◽  
Fruit Diameter

Genetic diversity in commercial cucumber genotypes was estimated based on 13 characters. Path analysis revealed that fruits/plant (0.701) and fruit weight (0.379) had maximum positive direct effect on yield. Seven cucumber genotypes were grouped into three different clusters. The highest inter-cluster distance (4.078) was observed between cluster I and II whereas lowest inter-cluster distance (1.011) was observed between the clusters I and III. Cluster II showed highest mean for length of main vine, nodes/plant, primary branches/plant, days to 1st male flowering, length of internodes/plant, fruits/plant and yield/plant whereas cluster III produced highest mean for leaf length, leaf breadth, fruit length, fruit diameter and fruit weight. Cluster II and III contributed 53.85 and 38.46%, respectively towards divergence.

scholarly journals Study of Correlation and Path Analysis in the Selected Okra Genotypes

2020 ◽  
pp. 1-11
Author(s):  
A. T. M. Hamim Ashraf ◽  
M. Mizanur Rahman ◽  
M. Mofazzal Hossain ◽  
Umakanta Sarker
Keyword(s):  
Path Analysis ◽  
Direct Effect ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Phenotypic Correlation ◽  
Genotypic Correlation ◽  
Fruit Length ◽  
Correlation And Path Analysis ◽  
Positive Direct ◽  
Fruit Diameter

An experiment was conducted at the experimental farm, Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur from March 2008 to July 2008 to study the correlation and path analysis in the selected okra genotypes. The experiment was carried out in Randomized Complete Block Design with thee replications. The results indicated that different genotypes varied significantly regarding all the studied characters. The Fruits per plant and fruit weight of different genotypes had a high degree of significant positive association with fruit yield and a high positive direct effect indicated that these characters had a major contribution towards the fruit yield of the genotypes. The days to first flowering and days to first fruit harvest showed a significant positive correlation with picking duration both genotypic and phenotypic levels. The Picking duration showed a highly significant positive genotypic correlation with fruit diameter and fruit length. At the final harvest plant height showed a highly significant positive genotypic correlation with fruit length and fruit weight at the genotypic level. The fruit length showed a highly significant positive genotypic correlation with fruit weight and fruit diameter and genotypic level. The fruits per plant showed a highly significant positive genotypic and phenotypic correlation with fruit yield. A significant positive genotypic correlation with fruit yield was shown by fruit weight. The fruits per plant (0.979) and fruit weight (0.554) also showed a high positive direct effect on fruit yield.

scholarly journals Physico-chemical characteristics of pomegranate accessions from the Kurdistan region, Iraq

2018 ◽  
Vol 63 (4) ◽  
pp. 355-366
Author(s):  
Saadatian Mohammad ◽  
Paiza Abdurahman ◽  
Kanar Salim ◽  
Pershang Younis ◽  
Hewen Abdurahman ◽  
...  
Keyword(s):  
Fruit Size ◽  
Chemical Properties ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Kurdistan Region ◽  
Fresh Weight ◽  
Fruit Length ◽  
Physico Chemical ◽  
Fruit Diameter

Some physico-chemical properties of ten pomegranate accessions collected from different districts in the Kurdistan region of Iraq were investigated in this paper. Considerable correlations between the characteristics studied were found and valuable pomological traits were observed. Cluster analysis showed the homonyms between some pomegranate accessions. Principle component analysis reported that the component describing the greatest variability also positively correlated with fruit weight, total aril weight, total peel weight, volume of juice, total soluble solids (TSS), fruit length, fruit diameter, pH, aril length, and 100-seed fresh weight, but negatively correlated with titratable acidity (TA). Fruit weight was firmly correlated with total aril weight, total peel weight, volume of juice, TSS, aril length, 100-seed fresh weight, fruit length and fruit diameter. The volume of juice was correlated with TSS, aril length, 100-seed fresh weight, fruit length, fruit diameter and it was observed that with an increase in the fruit size, the volume of juice increased as well. The correlation between total phenolic compounds and antioxidant capacity was not observed. The associations found among physical and chemical traits suggest that consumers should use large fruits with large arils so that they have more juice. Thus, ?Choman?, ?Raniyeh? and ?Halabja? were juicier than other accessions.

scholarly journals Epistatic gene control on the yield of tomato at medium elevation in the tropical agroecosystem

2019 ◽  
Vol 20 (7) ◽  
Author(s):  
FAJAR PRAKOSO MAWASID ◽  
MUHAMAD SYUKUR ◽  
TRIKOESOEMANINGTYAS TRIKOESOEMANINGTYAS
Keyword(s):  
Flowering Time ◽  
Genetic Model ◽  
Fruit Weight ◽  
Gene Control ◽  
Harvest Time ◽  
Fruit Length ◽  
The Cross ◽  
Tropical Agroecosystem ◽  
Duplicate Epistasis ◽  
Fruit Diameter

Abstract. Mawasid FP, Syukur M, Trikoesoemaningtyas. 2019. Epistatic gene control on the yield of tomato at medium elevation in the tropical agroecosystem. Biodiversitas 20: 1880-1886. Cultivation of tomatoes on the middle-low plain generally decreases the quantity and quality of the yield due to high-temperature stress. Increasing the size and weight of lowland tomatoes is needed to enhance national production. Information on the action and genetic model of target characters is needed in the preparation of the assembly program, especially for selection needs. This study aims to obtain genetic information and heritability of tomato yield characters, as a basis for assembling large tomato varieties for the lowlands. The study was conducted using six populations (P1, P2, F1, BCP1, BCP2, and F2) resulting from two different crosses of 99D x Tora (C-I) and 97D x Tora (C-II). The results show that the action of non-additive genes and non-allelic interactions has a large value, with duplicate epistasis being more dominant than complementary epistasis. Duplicate epistasis was found in the character of harvest time, fruit length, fruit diameter, fruit weight in cross I and flowering time, harvest time, fruit length, fruit diameter, and number of fruits in cross II, while complementary epistasis was found in flowering time, fruit weight per plant, number of fruits in cross I, and fruit weight, fruit weight per plant in cross II. Moderate to high heritability was found in the character of fruit length, fruit diameter, fruit weight, and fruit weight per plant. The values are higher in population from the cross I (99D x Tora) for each character, indicating that the cross I has a higher potential for genetic progress than cross II. Selection is recommended when the homozygosity has increased, using the Bulk method or Single Seed Decent. The two methods above can maintain variability in the next generation, so epistasis genes that control target characters are not drastically eliminated.

scholarly journals GENETIC VARIABILITY AND CORRELATION IN EXOTIC CUCUMBER (Cucumis sativus L.) VARIETIES

2012 ◽  
Vol 25 (1) ◽  
pp. 17-23
Author(s):  
M. Z. Ullah ◽  
M. J. Hasan ◽  
A. Z. M. K. A. Chowdhury ◽  
A. I. Saki ◽  
A. H. M. A. Rahman
Keyword(s):  
Cucumis Sativus ◽  
Coefficient Of Variation ◽  
Partial Correlation ◽  
Genetic Parameters ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Contributing Factors ◽  
Cucumis Sativus L ◽  
Correlation And Regression Analysis ◽  
Fruit Diameter

Twelve exotic cultivars of cucumber (Cucumis sativus) were grown to assess the presence of variability for desired traits and amount of variation for different parameters. Genetic parameters, correlations, partial correlation and regressions were estimated for all the traits. Analysis of variance revealed significant differences among entries for all the characters. The estimates of genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) were high for yield per plant, fruits per plant, fruit weight and fruit length. Broad sense heritability estimates for various traits ranged from 42.26 to 89.55%. Fruit yield per plant showed high significant positive correlation with fruits per plant, fruit weight, flesh thickness, fruit diameter and leaves per plant. Partial correlation was significant for fruits per plant and indicated these traits contributed over 70% to total fruit yield. By variability, correlation and regression analysis it was concluded that more fruits per plant and more fruit weight are major yield contributing factors in selecting high yielding cucumber cultivars.DOI: http://dx.doi.org/10.3329/bjpbg.v25i1.17008

scholarly journals Genetic and Heritability Estimation of Water Apple (Syzygiumaqueum (Burm.f.) Alston)

2019 ◽  
Vol 2 (2) ◽  
pp. 50
Author(s):  
Fitriana Nasution ◽  
Sri Hadiati
Keyword(s):  
Fruit Weight ◽  
Soluble Solids ◽  
Leaf Width ◽  
Genetic Advance ◽  
Genotypic Variance ◽  
Total Soluble Solids ◽  
Fruit Length ◽  
Heritability Estimation ◽  
High Heritability ◽  
Fruit Diameter

Nine different accessions of water apples were evaluated at Indonesian Tropical Fruit Research Institute(ITFRI), Solok, West Sumatera from January 2013 to December 2014. This present study was aimed to evaluate the variability, heritability, genetic advance and its characters in nine different accessions to provide useful information in the improvement program of water apples. The research used Randomized Complete Block Design (RCBD) with two replications. The ANOVA results exposed significant differences at 5% probability level for all characters. Genotypic variance on fruit weight, fruit length, fruit diameter, leaf length were broad. However, the genotypic variance on total soluble solids, leaf width were narrow. The phenotypic variation for all characters was broad. The heritability estimation was categorized as low, moderate, and high. High heritability estimation was recorded for fruit weight, fruit length, fruit diameter, and leaf diameter. Moderate heritability estimation was noticed for total soluble solids. Leaf width had low heritability estimation. High heritability and high genetic advance were observed on fruit weight.

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