Identification of Optimum Maturity Index for Quality of Red Flesh Guava (Psidium guajava L.)

V. Vani

Centre for Postharvest Technology, Agricultural Engineering College and Research Institute, TNAU, Coimbatore – 641 003, Tamil Nadu, India.

J. Rajangam

Horticultural College and Research Institute, TNAU, Periyakulam – 625 604, Tamil Nadu, India.

C. Rajamanickam *

Department of Fruit Science, Horticultural College and Research Institute, TNAU, Periyakulam – 625 604, Tamil Nadu, India.

*Author to whom correspondence should be addressed.


Abstract

This study conducted at Department of Postharvest Technology, Horticultural College and Research Institute, Periyakulam from 2015 – 2017, evaluated the optimal maturity stage for harvesting “Red flesh” guavas to maintain the postharvest quality. Four distinct maturity stages were identified: half maturity, green maturity, full maturity, and fully ripened based on day after fruit set (DAFS) and peel and pulp colour. Results indicate that “Red flesh” guavas reached half maturity at 91 days after fruit set, displaying characteristics like a deep green in peel and pale pink pulp, and showed largest fruit size measurements at green maturity (134 DAFS). At full maturity (147 DAFS), fruits achieved peak values in Total soluble solids (TSS) and TSS/acid ratio, with a decrease in firmness and acidity with changing peel in to yellowish green with bright pink pulp. The fully ripened stage (154 DAFS) was marked by the highest TSS content and maintained fruit size but slightly declines in specific gravity and firmness. Organoleptic evaluations rated guavas at fully maturity stage highest in terms of colour, texture, flavor, taste, and overall acceptability underscoring this stage as the most suitable for harvesting to ensure best quality.

Keywords: Guava, red flesh, maturity index, quality, fruit characters, organoleptic scores


How to Cite

Vani, V., J. Rajangam, and C. Rajamanickam. 2024. “Identification of Optimum Maturity Index for Quality of Red Flesh Guava (Psidium Guajava L.)”. International Journal of Plant & Soil Science 36 (7):258-65. https://doi.org/10.9734/ijpss/2024/v36i74728.

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References

Production volume of guava in India from financial year 2015 to 2022, with an estimate for; 2023. Available:https://www.statista.com/statistics/1043925/india-production-volume-of-guava/

Boora RS. Improvement in guava (Psidium guajava L.) A review. Agriculture Review. 2012;33(4):341 - 349.

Mitra SK, Devi HL, Chakraborty I, Pathak PK. Recent development in postharvest physiology and storage of guava. Acta Horticulturae. 2012;959:89-95.

Postharvest research and extension center, UCDAVIS. Recommendations for maintaining for postharvest quality; 2023.

https://postharvest.ucdavis.edu/produce-facts-sheets/guava

Mercado S, Benito Bautista EP M de los A, Velasco G. Fruit development, harvest index and ripening changes of guavas produced in central Mexico. Postharvest Biology and Technology. 1998;13:143-150.

Kader AA. Guava produce facts. Perishables handling quarterly, university of California; 1999.

Asrey R, Pal RK, Sagar VR, Patel VB. Impact of tree age and canopy position on fruit quality of guava. Acta Horticulturae. 2007;34:735.

Singh BP, Singh RA, Singh G, Bharti K. Response of bagging on maturity, ripening and storage behavior of writer guava. Acta Horticulturae. 2007;735:597- 601.

Azzolini M, Angelo PJ, Fillete Spoto MH. Maturation stage and postharvest quality of ‘Pedro Sato’ guavas. Rev. Bras. Frutic. 2004;26(1):29 - 31.

Patel RK, Maiti CS, Deka BC, Deshmukh NA, Verma VK, Nath A. Physical and biochemical changes in guava (Psidium guajava L.) during various stages of fruit growth and development. International Journal of Agriculture, Environment & Biotechnology. 2015;8(1):63-70.

Singh Z, Rajesh K, Singh V, Sane A, Nath P. Mango-postharvest biology and biotechnology. Critical Review Plant Science. 2013;3:217 - 236.

Mohsenin NN. Thermal properties of foods and agricultural materials. CRC Press, Boca Raton, FL; 1980.

Panse VG. Sukhatme PV. Statistical methods for agricultural workers. Indian Council for Agricultural Research (ICAR), New Delhi, India; 1985.

AOAC. Official methods of analysis. 17th edition, Association of Official Analytical Chemist, Washington DC; 2000.

Amerine MA, Pangborn RM, Roessler EB. Laboratory studies: Quantity-Quality evaluation. In: Principles of Sensory Evaluation, Academic Press, New York. 1965;367-375.

Dhilllon WS, Singh A, Singh R. Biochemical changes in developing semi soft pear fruits. Indian Journal of Horticulture. 2007;64(1):81-83.

Bollard EG. The physiology and nutrition of developing fruits. In: A.C. Hulme (Ed.) The biochemistry of fruits and their products. I, Academic Press, London. 1970;387-425.

Singh P, Jain V. Fruit growth attributes of guava (Psidium guajava L.) cv. Allahabad Safeda under agroclimatic conditions of Chhattisgarh. In: Singh et al. (ed) Proceedings of the first International guava Symposium Acta Horticulturae. 2007;735:335-338.

Kundu S, Mitra S, Mitra SK. Fruit growth and maturity of five guava cultivars. The Horticulture Journal. 1998;11:91 - 96.

Naik SK. Studies of physico-chemical changes in Alphonso and Ratna mangoes (Mangifera indica L.) fruits during growth, development and storage. M.Sc. (Ag) Thesis submitted to Konkan Krishi Vidyapeeth, Dapoli; 1985.

Hegde MV, Chharia AS. Developmental and ripening physiology of guava (Psidium guajava L.) fruits I. Biochemical changes. Haryana Journal of Horticultural Sciences. 2004; 33:62-64.

Deka BC, Sharma S, Borah SC. Post-harvest management practices for shelf life extension of Khasi mandarin. Indian Journal of Horticulture. 2006;63(3):251-255.