Genotypic variation in fruit characters in some genotypes of watermelon cultivated in Morocco

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Research Paper 01/04/2015
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Genotypic variation in fruit characters in some genotypes of watermelon cultivated in Morocco

El Madidi Said, Hakimi Fatiha
Int. J. Agron. Agri. Res.6( 4), 130-137, April 2015.
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Data from trial of five Moroccan landraces and four commercial watermelons varieties were used to evaluate the phenotypic variability and estimate genotypic parameters. Five characters were used for the estimation of the phenotypic and genotypic variability: fruit weight (FW), fruit length (FL), fruit width (FWd), fruit rind thickness (FRT) and total soluble solids content (TSS).The analysis of variance showed highly significant differences among genotypes in studied characters. The phenotypic coefficient of variation (CVP) ranged between (17 %) recorded for fruit width and (43%) for fruit weight and a highly and significant correlation was observed between FW and FL and FWd. Moderate to high values of broad-sense heritability were estimates for all characters measured except for fruit rind thickness. The TSS had the highest value of heritability (62 %). For all the characters, the genotypic correlation coefficient was higher than the corresponding phenotypic correlation coefficient which indicated that the apparent association might be due to genetic reason.


Bates DM, Robinson RW, Jeffrey C. 1990. Biology and utilization of the Cucurbitaceae. Cornell University Press.

Bisognin DA. 2002. Origin and evolution of cultivated cucurbits. Ciencia Rural 32, 715-723.

Che K, Liang C, Wang Y, Jin D, Wang B, Xu Y, Kang G, Zhang H. 2003. Genetic assessment of watermelon germplasm using the AFLP technique. HortScience 38(1), 81-84

Choudhary BR, Sudhakar Pandey, Singh PK. 2012. Morphological diversity analysis among watermelon (Citrullus lanatus(Thunb) Matsum) genotypes. Progessive Horticulture 44(2), 321-326

Claid M, Sehic J, Werlemark G, Garkava-gustavsson L, Fatih M, Nybom H. 2010. Genetic iversity in watermelon (Citrullus lanatus) landraces from Zimbabwe reveled by RAPD and SSR markers. Hereditas 147, 142–153.

Damania AB, Pecetti L, Qualset CO, Humeid B O. 1997. Diversity and geographic distribution of stem solidness and environmental stress tolerance in a collection of durum wheat landraces from Turkey. Genetic Resources and Crop Evolution 44(2), 101-108.

El Madidi S, Diani Z, Bani-Aameur F. 2005. Variation of agromorphological characters in Moroccan barley landraces under near optimal and drought conditions. Genetic Resources and Crop Evolution 52(7), 831-838.

El Madidi S, El Baroudi B, Bani-Aameur F. 2006. Genotypic Variation for salt tolerance in Moroccan Barley landraces at seed germination. Plant Breeding and Seed Science 53, 63-70.

Falconer DS, Mackay TFC. 1996. Introduction to quantitative genetics. 4th Edn., Benjamin Cummings, England, ISBN-10 : 0582243025.

FAO, Food and AgricultureOrganization. 2012.

Flores CI, Ross WM, Maranville JW. 1986. Quantitative genetics of agronomic and nutritional traits in related grain sorghum random-mating population as affected by selection. Crop Science 26 (1), 9-18.

Frankel OH, Brown AHD, Burdon JJ. 1995. The Conservation of Plant Biodiversity, Cambridge University Press, Cambridge, UK, 299 p.

Jeffrey C. 1990. Systematics of the Cucurbitaceae: an overview. Biology and utilization of the Cucurbitaceae, Cornell University Press, Ithaca, New York, 3-9 P.

Gusmini G, Wehner TC. 2007. Heritability and genetic variance estimates for fruit weight in watermelon. HortScience 42(6), 1332-1336.

Kumar R. 2009. Inheritance of fruit yield and other horticul-turally important traits in watermelon [Citrulluslanatus(Thunb.) Matsum. & Nakai. Ph.D Thesis, North CarolinaState Univ, Raleigh.

Kumar R, Wehner TC. 2013. Quantitative Analysis of Generations for Inheritance of Fruit Yield in Watermelon. HortScience 48(7), 844-847.

Levi  A,  Thomas CE,  Wehner TC,  Zhang X. 2001. Low genetic diversity indicates the need to broaden the genetic base of cultivated watermelon. HortScience 36(6), 1096-1101.

Levi A, Thomas CE, Keinath AP, Wehner TC. 2000. Estimation of genetic diversity among Citrullus accessions using RAPD markers. Acta Horticulturae 510, 385-390.

Maggs-Kolling G, Madsen S,Christiansen JL. 2000. A phenetic analysis of morphological variation in Citrullus lanatus in Namibia. Genetic Resources and Crop Evolution 47, 385–393.

Milligan SB, Gravois KA, Bischoff KP, Martin FA. 1990 Crop Effects on Broad-Sense Heritabilities and Genetic Variances of Sugarcane Yield Components. Crop Science 30(2), 344-349.

Nyquist WE. 1991. Estimation of heritability and prediction of selection response in plant population. Crit Rev Plant Sci. 10, 235-322.

Oyewo OO, Onyije FM, Akintunde OW, Ashamu EA. 2012. Effects of Aqueous Extract of Citrullus lanatus on the Histology of the Kidney of Adult Wistar Rats. World Applied Sciences Journal 17 (9), 1178-1181.

Querol D. 1987. Genetic Resources-A Practical Guide to their Conservation. Zed Books Ltd, London and New Jersey 52, 55-57.

Ram SG, Thiruvengadam V, Vinod K K. 2007. Genetic diversity among cultivars, landraces and wild relatives of rice as revealed by microsatellite markers. Journal of applied genetics 48(4), 337-345.

Rao R, Corrado G, Bianchi M, Di Mauro A. 2006. (GATA)4 DNA fingerprinting identifies morphologically characterized ‘San Marzano’ tomato plants. Plant Breeding 125, 173-176.

Ruiz JJ, Alonso A, Garcia-Martinez S, Valero M, Blasco P, Ruiz-Bevia F. 2005. Quantitative analysis of flavour volatiles detects differences among closely related traditional cultivars of tomato. Journal of the Science of Food and Agriculture 85, 54-60.

SAS Institute. 2010. Statistical analysis Software version 9.3 user’s manual., Cary, NC: SAS Institute Inc. USA.

Shimotsuma M. 1963. Cytogenetical studies in the genus Citrullus. VII. Inheritance of several characters in watermelons. Jpn. J. Genet. 13, 235-240.

Solmaz I, Sari N, Aka-Kacar Y,Yesim Yalcin-Mendi N. 2010; The genetic characterization of Turkish watermelon (Citrullus lanatus) accessions using RAPD markers. Genetic Resources and Crop Evolution 57(5), 763 – 771.