Genetic Associations Analysis among Some Traits of Tomato (Lycopersicon esculentum Mill.) Genotypes in West Showa, Ethiopia

Tasisa, Jiregna; Belew, Derbew; Bantte, Kassahun

doi:10.3923/ijpbg.2012.129.139

Cited by 18 publications

(11 citation statements)

References 13 publications

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“…This can be interpreted as a strong inherent genotypic relationship between characters studied, through their phenotypic expression was impeded by environmental influence. The present findings are in conformity with Harer et al (2003) Tasisa et al (2012). The nature of genotypic correlation was similar to phenotypic correlation.…”

Section: Resultssupporting

confidence: 82%

Genetic Associations Analysis for Fruit Yield and Its Contributing Traits of Indeterminate Tomato (Solanum lycopersicum L.) Germplasm under Open Field Condition

Meena¹,

Bahadur²

2015

JAS

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The study was initiated to generate genetic information on characters associations for tomato germplasm under open field condition. Nineteen indeterminate tomato germplasm were evaluated to estimate the nature and magnitude of associations of different characters with fruit yield and among themselves at Vegetable Research Farm, Department of Horticulture, SHIATS, Allahabad (India) during 2012-2013. The experiment was conducted using a Randomized Complete Block Design (RCBD) with three replications. Estimates of genetic parameters revealed that fruit yield was significantly and positively correlated with number of flowers per plant (0.2894 and 0.2891) followed by number of fruits per plant (0.4480 and 0.4486) and fruit weight (0.6223 and 0.6230) at genotypic and phenotypic level, respectively, strong association of these traits revealed that the selection based on these traits would ultimately improve the fruit yield and it is also suggested that hybridization of genotypes possessing combination of above characters is most useful for obtaining desirable high yielding segregation. In order to obtain a clear picture of the inter relationship between fruit yield per plant and its components, direct and indirect effects were measured using path coefficient analysis. Fruit weight had a very high positive direct genotypic and phenotypic effect 0.9566 and 0.9442, respectively on fruit yield per plant followed by number of flowers per plant, fruit set per cent, number of fruits per plant, TSS o Brix, plant height, radial diameter of fruit, leaf curl incidence per cent and days to 50% flowering. The characters showed high direct effect on yield per plant indicated that direct selection for these traits might be effective and there is a possibility of improving yield per plant through selection based on these characters. Residual effect was considerably low (0.0611 and 0.0751) which indicated that characters included in this study explained almost all variability towards yield.

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Section: Resultssupporting

confidence: 82%

Genetic Associations Analysis for Fruit Yield and Its Contributing Traits of Indeterminate Tomato (Solanum lycopersicum L.) Germplasm under Open Field Condition

Meena¹,

Bahadur²

2015

JAS

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“…Our data also indicated significant positive genetic and phenotypic correlations between fruit yield plant -1 and number of fruits plant -1 (r = 0.3119 and 0.3184), fruit set percentage (r = 0.2434 and 0.2499), fruit weight (r = 0.6766 and 0.6731), polar diameter of fruit (r = 0.4687 and 0.4635), indicating that effective improvement in fruit yield plant -1 through these characters could be achieved. Similar results have also been reported by Kumar et al (2003), Dhankhar and Dhankar (2006), Kumar et al (2006), Tasisa et al (2012), Reddy et al (2013) for number of fruits plant -1 ; for number of fruits plant -1 , fruit weight and fruit diameter; Ara et al (2009), Kumar and Dudi (2011) for average fruit weight and number of fruits plant -1 ; Rani et al (2010), Sharma and Singh (2012) for fruit weight. Plant height showed significant and positive association with number of branches plant -1 , number of leaves plant -1 and leaf curl incidence percentage at genotypic and phenotypic level.…”

Section: Analysis Of Variancesupporting

confidence: 80%

“…The low phenotypic value might be due to appreciable interaction of the accessions/genotypes with the environment. The higher genotypic correlation than phenotypic correlation have also been reported by Harer et al (2002); Kumar et al (2003); Golani et al (2007); Tasisa et al (2012); Srivastava et al (2013); Santos et al (2014a). The nature of genotypic correlation was similar to phenotypic correlation.…”

Section: Analysis Of Variancesupporting

confidence: 65%

“…Tomato is native of West Coast of South America (Mexico and Peru) and was cultivated by Indians about 500 B.C. long before arrival of Spaniards (Rehman et al, 2000;Tasisa et al, 2012;Meena and Bahadur, 2015a). In India, tomato occupies an area of 0.87 million hectares with a production of 17.50 million tonnes and productivity of 20.11 tonnes per hectare (FAO, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Genetic analysis of agronomic and biochemical variables among different tomato (Solanum lycopersicum L.) accessions

Meena

Bahadur

Jagtap

et al. 2015

JANS

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Abstract:In the present study, thirty accessions of tomato were evaluated for estimation of correlation and path analysis among various quantitative and qualitative characters related to fruit yield. There were highly significant differences among the accessions for all the characters studied as per the analysis of variance. Genotypic correlation coefficients were generally similar in nature and higher in magnitude than the corresponding phenotypic correlation coefficients. The results revealed that the fruit yield plant -1 was significantly and positively correlated with number of fruits plant -1 (0.3119 and 0.3184) followed by fruit set percentage (0.2434 and 0.2499), fruit weight (0.6766 and 0.6731), polar diameter of fruit (0.4687 and 0.4635) at genotypic and phenotypic level, respectively, indicating that effective improvement in fruit yield plant -1 through these characters could be achieved. Fruit weight showed positive and significant genotypic and phenotypic correlation with fruit yield plant -1 by having greatest positive direct effect (1.1298 and 1.1116) on fruit yield plant -1 at both levels, indicating the true relationship between them and the feasibility to exploit the potentiality of this trait for effective direct selection to improve fruit yield plant -1 .

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“…Karakter bobot buah per tanaman memiliki korelasi yang nyata dan positif terhadap diameter batang dan fruit set serta sangat nyata dan positif terhadap panjang buah, diameter buah, bobot buah dan jumlah buah per tanaman pada kondisi tanpa naungan (Tabel 4). Beberapa penelitian melaporkan adanya korelasi yang nyata dan positif antara bobot per buah (Meitei et al, 2014), panjang buah, diameter buah (Rani dan Anitha, 2011) dan jumlah buah per tanaman (Izge et al, 2012;Tasisa et al, 2012;Monamodi et al, 2013;Meena dan Bahadur, 2014) terhadap karakter hasil tomat pada kondisi tanpa naungan. Hal ini menunjukkan bahwa karakter bobot buah per tanaman lebih banyak dipengaruhi oleh karakter buah pada kondisi tanpa naungan.…”

Section: Hasil Dan Pembahasanunclassified

Heritability, Correlation, and Path Analysis on Various Characters of Tomato (Solanum lycopersicum) under Shading and Normal Condition

et al. 2019

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Informasi tentang karakter seleksi sangat diperlukan dalam suatu program pemuliaan. Genotipetomat SSH3 (suka naungan), genotipe 4974 (peka naungan) dan populasi F2 turunan hasil persilangangenotipe SSH3 x 4974 digunakan untuk menduga nilai heritabilitas, pengaruh langsung dan pengaruhtidak langsung terhadap karakter hasil tomat pada kondisi naungan paranet 50% dan tanpa naungan.Penanaman dilakukan di Kebun Percobaan PKHT-IPB Pasir Kuda pada Juli-Oktober 2016. Nilaiheritabilitas tinggi (>50%) dihasilkan oleh tinggi tanaman, panjang daun, lebar daun, luas daun, bobotdaun, bobot daun spesifik, bobot buah, fruit set, jumlah dan bobot buah per tanaman tomat padakondisi tanpa naungan. Nilai heritabilitas tinggi (>50%) pada naungan paranet 50%, dihasilkan olehtinggi tanaman, fruit set, jumlah dan bobot buah per tanaman. Karakter bobot buah dan jumlah buahper tanaman memiliki pengaruh langsung yang tinggi dan positif terhadap bobot buah per tanamantomat pada kondisi tanpa naungan dan naungan paranet 50%, sementara lebar dan luas daun memilikipengaruh langsung yang tinggi dan positif terhadap bobot buah per tanaman tomat hanya pada naunganparanet 50%. Karakter panjang buah, diameter buah, dan fruit set memiliki pengaruh tidak langsungyang tinggi dan positif terhadap bobot buah per tanaman pada kondisi tanpa naungan dan naunganparanet 50%, sementara tinggi tanaman memiliki pengaruh tidak langsung yang tinggi dan positifterhadap bobot buah per tanaman tomat hanya pada naungan paranet 50%. Karakter fruit set, bobot buah, dan jumlah buah per tanaman potensial dijadikan karakter seleksi untuk produktivitas tomatpada kondisi tanpa naungan. Karakter tinggi tanaman, fruit set dan jumlah buah per tanaman potensialdijadikan karakter seleksi untuk produktivitas tomat pada naungan paranet 50%.Kata kunci: fruit set, pengaruh langsung, pengaruh tidak langsung, toleran naungan

show abstract

Genetic Associations Analysis among Some Traits of Tomato (Lycopersicon esculentum Mill.) Genotypes in West Showa, Ethiopia

Cited by 18 publications

References 13 publications

Genetic Associations Analysis for Fruit Yield and Its Contributing Traits of Indeterminate Tomato (Solanum lycopersicum L.) Germplasm under Open Field Condition

Genetic Associations Analysis for Fruit Yield and Its Contributing Traits of Indeterminate Tomato (Solanum lycopersicum L.) Germplasm under Open Field Condition

Genetic analysis of agronomic and biochemical variables among different tomato (Solanum lycopersicum L.) accessions

Heritability, Correlation, and Path Analysis on Various Characters of Tomato (Solanum lycopersicum) under Shading and Normal Condition

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