Characterization of Tunisian genetic resources of Watermelon (Citrullus lanatus)
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Date
2019
Authors
González García, VicenteGarcés Claver, Ana
Chikh Rouhou, Hela
Sta-Baba, R.
Fhima, I.
Khettabi, Meriem
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Abstract
In Tunisia, watermelon [Citrullus lanatus (Thunb.) Matsum. & Nakai] is largely consumed in summer as a
fresh fruit. This cucurbit is cultivated in various areas in the country. The landraces are a very important source
of genetic diversity, constituting an important genetic resource for plant breeders. The aim of the present study
was to collect and characterize fruit diversity of watermelon landraces collected from local farmers from Monastir
and Sousse areas of Tunisia. The landraces were categorized for 20 variables of fruit features according to UPOV
descriptors for watermelon. Also, these landraces were screened by artificial inoculation for their resistance to
Fusarium oxysporun f.sp niveum (FON) races 0 and 2 to identify sources of resistance to Fusarium wilt. Significant
differences were found among accessions for the quantitative traits recorded, revealing a large diversity. The
evaluated watermelon landraces expressed a wide range of phenotypes including fruit size, flesh color, rind
pattern, FON disease resistance and sweetness.
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Bibliographic citation
Proceedings of the 6th International Conference on Sustainable Agriculture and Environment (6th ICSAE), At Konya-Turkey, pp. 576-579, (2019)
AGROVOC subjects
SandíaCitrullus
Fusarium oxysporum
Resistencia a la enfermedad
Túnez
Variedades autóctonas
Recursos genéticos
Fenotipos