Morphological characterisation of Cucurbita maxima Duchesne (Cucurbitaceae) landraces from the Po Valley (Northern Italy)

  • Simone Orsenigo Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy, University of Milan, Milan, Italy.
  • Thomas Abeli Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy.
  • Massimo Schiavi Consiglio per la Ricerca in Agricoltura e l’analisi dell’economia agraria, Centro di ricerca Genomica e Bioinformatica, Montanaso Lombardo (LO), Italy.
  • Paolo Cauzzi Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy.
  • Filippo Guzzon | filippo.guzzon01@universitadipavia.it Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy.
  • Nicola M.G. Ardenghi Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy.
  • Graziano Rossi Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy.
  • Ilda Vagge Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy, University of Milan, Milan, Italy.

Abstract

Identifying crop genetic resources represent an important aspect of agricultural biodiversity conservation. However, conservation of landraces is challenging because they often cannot be properly identified, or have already suffered from genetic erosion, or have disappeared. Identification of landraces can be obtained using molecular markers or discriminating qualitative and quantitative morphological traits. The latter methodology is cheap and easily achievable, allowing the registration of landraces in national catalogues. In this study, we carried out a morphological characterisation of different accessions of Cucurbita maxima (Cucurbitaceae) cultivated in the Po Valley (N-Italy), locally known as Cappello da prete. The aim was to explore the morphological fruit variability among accessions and to identify potential distinct landraces within the Cappello da prete squash group. Differences between accessions were found indicating that morphological traits can be effectively used to identify these landraces and suggesting a diversification by isolation. Indeed, our morphological analysis shown the existence of two different landraces of Cappello da prete squashes. The adopted procedure can demonstrate that few low-cost traits are useful for the registration of local varieties in the official catalogue of landraces. Our study also demonstrates that morphological characterisation allows a rapid and cost-effective identification of diagnostic morphological traits that, together with historical and cultural information, are fundamental to recognise landraces.

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Published
2018-11-07
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Short communications
Keywords:
Cost-effective identification, Cucurbita maxima Duchesne, fruit morphology, landraces, morphological traits, National catalogue of conservation varieties, winter squash.
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How to Cite
Orsenigo, S., Abeli, T., Schiavi, M., Cauzzi, P., Guzzon, F., Ardenghi, N. M., Rossi, G., & Vagge, I. (2018). Morphological characterisation of Cucurbita maxima Duchesne (Cucurbitaceae) landraces from the Po Valley (Northern Italy). Italian Journal of Agronomy, 13(4), 338-342. https://doi.org/10.4081/ija.2018.963