Survey, collection and characterization of Indian avocado (Persea americana) germplasm for morphological characters

MURALIDHARA B M; SAKTHIVEL T; KARUNAKARAN G; VENUGOPALAN R; VENKATRAVANAPPA V; SIDDANNA SAVADI; KARTHIK NAYAKA V S; SHIVASHANKARA K S; HONNABYRAIAH M K

doi:10.56093/ijas.v93i2.132039

Authors

MURALIDHARA B M ICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, India
SAKTHIVEL T ICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, India
KARUNAKARAN G ICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, India
VENUGOPALAN R ICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, India
VENKATRAVANAPPA V ICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, India
SIDDANNA SAVADI ICAR-Directorate of Cashew Research, Puttur, Karnataka
KARTHIK NAYAKA V S ICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, India
SHIVASHANKARA K S ICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru, Karnataka 560 089, India
HONNABYRAIAH M K College of Horticulture, Bengaluru, University of Horticultural Sciences, Bagalkote, Karnataka

https://doi.org/10.56093/ijas.v93i2.132039

Keywords:

Breeding, Descriptors, Fruit, Genetic Diversity, IPGRI

Abstract

Avocado (Persea americana Mill.) is emerging as one of the high-valued fruit crops in India. Recently, demand for avocados is increasing due to the high nutritional value of the fruits. Currently, avocados are not grown on large commercial scale and there is a need of good high yielding varieties for commercial cultivation. Hence knowledge on genetic diversity of avocado is essential for selection of superior genotypes. Currently, the information on genetic diversity of Indian avocados is limited. Therefore, an intensive survey was carried out in major avocado growing areas of India to collect 83 diverse accessions. The collected accessions were characterized for 27 characters using IPGRI, avocado descriptors. Among the characters studied, 2 characters were dimorphic and remaining 25 were polymorphic. The maximum accessions showed the presence of rough trunk surface (48.19%), oval leaf shape (44.58%), acute leaf base (86.75%) and leaf apex (72.29%). The dominance of light green fruit colour (38.55%) with smooth peel surface (54.22%) was noticed. The wide variability for pulp and seed characters was also documented. The principal component analysis and cluster analysis showed the existence of wider variability among the collected accessions. The existence of huge diversity helps to conserve trait specific accessions and varietal improvement through selections and hybridizations.

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References

Abraham J D, Abraham J and Takrama J F. 2018. Morphological characteristics of avocado (Persea americana Mill.) in Ghana. African Journal of Plant Science 12: 88–97. DOI: https://doi.org/10.5897/AJPS2017.1625

Bergh B and Ellstrand N.1986. Taxonomy of the avocado. California Avocado Society Yearbook 70: 135–46.

Bergh B O and Lahav E. 1996. Avocados. Fruit Breeding: Tree and Tropical Fruits, pp. 113–66. Janick Jand Moore J N (Eds). A Wiley-Interscience Publication, New York.

Bergh B.1992. The origin, nature, and genetic improvement of the avocado. California Avocado Society Yearbook 76: 61–75.

Dreher M L and Davenport A J.2013. Hass avocado composition and potential health effects. Critical Reviews in Food Science and Nutrition 53: 738–50. http://dx.doi.org/10.1080/1040839 8.2011.556759 DOI: https://doi.org/10.1080/10408398.2011.556759

FAO. 2020. FAOSTAT. Food and Agriculture Organization of the United Nations, Rome, Italy. http://www.fao.org/faostat/ en/#data/QC

Ghosh S P. 2000. Avocado production in India. Avocado Production in Asia and the Pacific, pp. 24–30. FAO/RAP Publication, Bangkok, Thailand.

Hammer O, Harper D A T and Ryan P D. 2001. PAST: paleontological statistics software package for education and data analysis. https://palaeo-electronica.org/2001_1/past/ issue1_01.htm

International Plant Genetic Resources Institute. 1995. Descriptors for Avocado (Persea spp.), pp. 52. International Plant Genetic Resources Institute, Rome, Italy.

Juma I, Nyomora A, Hovmalm H P, Fatih M, Geleta M, Carlsson A S and Ortiz R O. 2020. Characterization of Tanzanian avocado using morphological traits. Diversity 12(2): 64. https://doi.org/10.3390/d12020064 DOI: https://doi.org/10.3390/d12020064

Khadivi A, Ayenehkar D, Kazemi M and Khaleghi A. 2018. Phenotypic and pomological characterization of a pomegranate (Punica granatum L.) germplasm collection and identification of the promising selections. Scientia Horticulturae 238: 234–45. DOI: https://doi.org/10.1016/j.scienta.2018.04.062

Nkansah G O, Ofosu-Budu K G and Ayarna A W. 2013. Genetic diversity among local and introduced avocado germplasm based on morpho-agronomic traits. International Journal of Plant Breeding and Genetics 7: 76–91. https://doi:10.3923/ ijpbg.2013.76.91 DOI: https://doi.org/10.3923/ijpbg.2013.76.91

Popenoe W. 1974. Manual of Tropical and Subtropical Fruits. Hafner Press, New York, USA.

Ranjitha V, Chaitanya H S, Ravi C S, Shivakumar B S and Naveen N E. 2021. Morphological characterization of avocado (Persea americana Mill.) accessions explored from hill zone taluks of Chikkamagaluru district, Karnataka state. Journal of Pharmacognosy and Phytochemistry 10(2): 310–18.

Ruiz-corral J A, Medina-Garcia G, I J Gonzalez-coins, Ortiz-Trejo C, Flores Lopez H E, Martinez-vine R A and Byerly-Murphy K F. 1999. Requirements agroecologicos of cultivations. SAGAR. INIFAP. CIRPAC. Book Technician No. 3. Guadalajara, Jalisco, Mexico. 324 pp.

Tripathi P C, Karunakaran G, Sakthivel T, Sankar V and Senthil Kumar R. 2016. Avocado cultivation in India – Bulletin https:// www.researchgate.net/publication/303797732

Yunus I, Handayani R, Hafifah H and Rahmiyati R. 2019. Morphological diversity of avocados (Persea americana Mill.) in central aceh, Indonesia. International Journal of Recent Technology and Engineering 7: 1401–40.