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<p>Guava (<i>Psidium guajava</i>&#xa0;L.) belongs to the family Myrtaceae and the genus <i>Psidium</i> and is a&#xa0;traditionally cultivated fruit tree in Tunisia. It has recently garnered increasing attention because of its high nutritional value and strong market potential. The local variety, known as ‘Khoukh Romen’ (KHR), is widely grown in Menzel Bouzelfa (Cap Bon) within small farms intercropped with citrus orchards, illustrating the long-standing integration of guava into Tunisian agricultural systems. In this context, the main objective of this study is to increase the value of two local guava varieties through the first comprehensive morphological and biochemical characterization conducted in Tunisia. A&#xa0;total of 30&#xa0;trees were evaluated for 32 phenotypic traits related to fruits, flowers, leaves, and seeds, along with four biochemical parameters (soluble sugars, polyphenols, flavonoids, and tannins). The results revealed morphological and biochemical variability, mainly due to fruit size, color, seed number, and leaf shape. The KHR1 variety was distinguished by particularly high levels of bioactive compounds, including flavonoids (20.22 mg/g DW), tannins (19.95 mg/g DW), and soluble sugars (7.69 mg/g DW). Overall, both varieties represent valuable local genetic resources, with the KHR1 variety emerging as a&#xa0;promising candidate for premium fresh fruit production. The correlations between simple phenotypic traits and biochemical composition provide useful tools for genetic improvement, supporting the future development of guava cultivation in Tunisia.</p>

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Agro-morphological and Biochemical Profiling of Traditional Tunisian Guava (Psidium Guajava L.) Varieties for Sustainable Valorization

  • 期刊论文

  • 发表日期：

    2026年4月15日

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  • Sana Ben Mustapha,
  • Donia Abdallah,
  • Insaf Djebbi,
  • Amel Salhi Hannachi,
  • Ghada Baraket

摘要

Guava (Psidium guajava L.) belongs to the family Myrtaceae and the genus Psidium and is a traditionally cultivated fruit tree in Tunisia. It has recently garnered increasing attention because of its high nutritional value and strong market potential. The local variety, known as ‘Khoukh Romen’ (KHR), is widely grown in Menzel Bouzelfa (Cap Bon) within small farms intercropped with citrus orchards, illustrating the long-standing integration of guava into Tunisian agricultural systems. In this context, the main objective of this study is to increase the value of two local guava varieties through the first comprehensive morphological and biochemical characterization conducted in Tunisia. A total of 30 trees were evaluated for 32 phenotypic traits related to fruits, flowers, leaves, and seeds, along with four biochemical parameters (soluble sugars, polyphenols, flavonoids, and tannins). The results revealed morphological and biochemical variability, mainly due to fruit size, color, seed number, and leaf shape. The KHR1 variety was distinguished by particularly high levels of bioactive compounds, including flavonoids (20.22 mg/g DW), tannins (19.95 mg/g DW), and soluble sugars (7.69 mg/g DW). Overall, both varieties represent valuable local genetic resources, with the KHR1 variety emerging as a promising candidate for premium fresh fruit production. The correlations between simple phenotypic traits and biochemical composition provide useful tools for genetic improvement, supporting the future development of guava cultivation in Tunisia.