Genetic diversity analysis in guava (Psidium guajava) on the basis of morphological and physico-chemical traits
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Keywords:
Cluster analysis, D2 statistic, Divergence analysis, Guava, Morpho-physiologicalAbstract
Assessment of genetic diversity in the available germplasm is the prerequisite for development of improved genotypes through planned breeding programmes. In view of this, thirty five guava (Psidium guajava L.) genotypes maintained at the Fruit Research Farm of Punjab Agricultural University, Ludhiana and its Regional Fruit Research Station, Bahadurgarh, Patiala were evaluated for tree, vegetative, reproductive, fruit and seed characters based on UPOV descriptors during years 2010 to 2013. Morpho physiological data was subjected to Mahalanobis D2 statistic and it grouped the tested genotypes into six clusters with Cluster III and V showing maximum inter cluster distance. Cluster I, cluster IV, cluster V and cluster VI showed intra cluster distance of 55.12, 55.40, 50.70 and 61.84, respectively, indicating that the genotypes in these clusters have dissimilarity for morphological features and performance. Cluster III had highest mean value for fruit weight (312.39 g), fruit length (109.60 mm), fruit width (72.88 mm) and fruit outer flesh thickness (17.95 mm) and least mean values for seed weight per 100 g of fruit (0.933 g). Cluster V was characterized by minimum mean value for 100-seed weight (1.017 g) and maximum value for total soluble solids (11.60 %) and titrable acidity (0.486 %). Contribution towards observed diversity was found to be 47.90, 16.73, 13.11 and 10.76 per cent for seed weight per fruit, fruit diameter, 100-seed weight and leaf width. Genotypes from Cluster III, V and IV may be chosen for intercrossing to get the desired trait combinations through high heterotic response and superior recombinants in their progenies.Downloads
References
Coser S M, Ferreiraa M F S, Ferreiraa A, Mitreb L K, Carvalhoc C R and Clarindob W R. 2012. Assessment of genetic diversity in Psidium guajava L. using different approaches. Scientia Horticulturae 148: 223–9. DOI: https://doi.org/10.1016/j.scienta.2012.09.030
Dinesh M R and Reddy B M. 2001. Evaluation of Psidium guajava accessions and some other Psidium species for fruit characters. Journal of Applied Horticulture 3(1): 41–3. DOI: https://doi.org/10.37855/jah.2001.v03i01.08
Lima M A, Durigan J F, Pereira F M and Ferraudo A S. 1999. Physical and chemical characterization of the fruits of 19 guava tree genotypes, obtained by the FCAV-UNESP breeding programme. Revista-Brasileira-de-Fruticultura 21(3): 252–7.
Mani A, Mishra R and Thomas G. 2011. Elucidation of diversity among Psidium species using morphological and SPAR methods. Journal of Phytology 3: 53–61.
Molero T, Molina J and Padron A C. 2003. Descripcion morfologica de selecciones de Psidium guajava L. tolerantes y Psidium friedrichsthalianum (Berg.) Nied resistente a Meloidogyne incognita en el estado Zulia, Venezuela. Revista de la Facultad de Agronomía. 20: 478–92.
Prakash D P, Narayanaswamy P and Sondur S N. 2002. Analysis of molecular diversity in guava using RAPD markers. Journal of Horticultural Science and Biotechnology 77(3): 287–93. DOI: https://doi.org/10.1080/14620316.2002.11511494
Rai M K, Asthana P, Jaiswal V S and Jaiswal U. 2010 Biotechnological advances in guava (Psidium guajava L.): recent developments and prospects for further research. Trees 24: 1–12. DOI: https://doi.org/10.1007/s00468-009-0384-2
Rajan S, Yadava L P, Kumar R A M and Saxena S K. 2007a. GIS based diversity analysis of guava growing distribution in Uttar Pradesh. Acta Horticulturae 735: 109–13. DOI: https://doi.org/10.17660/ActaHortic.2007.735.14
Rajan S, Yadava L P, Kumar R and Saxena S K. 2007b. Genetic divergence in seed characteristics of guava: A basis for parent selection in hybridization. Indian Journal of Horticulture 64(3): 290–3.
Rodriguez M N N, Valdes J J, Rodriguez J A, Velasquez J B, Rivero D, Martinez F, Gonzalez G, Sourd D G, Gonzalez L and Canizares J. 2010. Genetic resources and breeding of guava (Psidium guajava L.) in Cuba. Biotecnologia Aplicada 27: 238–41.
Sanabria O H L, Garcia M A, Diaz H A and Munoz J E. 2005. Morphological characteristics of guava in Cauca Valley, Colombia. Acta Agronomica 54 (4): 1–6.
Saxena S K, Rajan S, Chandra R, Srivastava N and Bajpai A. 2007. Molecular characterization of closely related open pollinated seedling selections in guava. Acta Horticulturae 735: 49–55. DOI: https://doi.org/10.17660/ActaHortic.2007.735.4
Sharma A, Sehrawat S K, Singhrot R S and Tele A. 2010. Morphological and chemical characterization of Psidium species. Notulae Botanicae Horti Agrobotanici Cluj-Napoca 38 (1): 28–32.
Singh G. 2007. Recent development in production of guava. Acta Horticulturae 735: 161–76. DOI: https://doi.org/10.17660/ActaHortic.2007.735.21
Santos C A F, Castro J M C, Souza F F, Vilarinho A A, Ferreira F R, Padua J G, Borges R M E, Barbieri R L, Souza A D G C and Rodrigues M A. 2010. Prospecting and morphological characterization of brazilian Psidium germplasm. Acta Horticulturae 849: 63–8. DOI: https://doi.org/10.17660/ActaHortic.2010.849.6
Sharma A, Sehrawat S K, Singhrot R S and Tele A. 2010. Morphological and chemical characterization of Psidium species. Notulae Botanicae Horti Agrobotanici Cluj-Napoca. 38: 28–32.
Urdaneta A B S, Colmenares C, Bracho B, Ortega J, Rivero G, Gutierrez G and Paz J. 2007. Caracterizacion morfologica del fruto en variantes de guayabo (Psidium guajava L.) en una finca del municipio Mara, estado Zulia. Revista de la Facultad de Agronomía. 24: 282–302.
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