Chapter 2. Squashes, Pumpkins, Zucchinis and Gourds
II.2. SQUASHES, PUMPKINS, ZUCCHINIS, GOURDS (CURCURBITA SPECIES) – 83 Chapter 2. Squashes, pumpkins, zucchinis and gourds (Curcurbita species) This chapter deals with the biology of squashes, pumkins, zucchinis and gourds (Cucurbita species). It contains information for use during the risk/safety regulatory assessment of genetically engineered varieties intended to be grown in the environment (biosafety). It includes elements of taxonomy, centres of origin and distribution, morphological characters, reproductive biology, genetics, hybridisation and introgression, crop production and cultivation practices, interactions with other organisms, pests and pathogens, and biotechnological developments. The chapter was prepared by the OECD Working Group on the Harmonisation of Regulatory Oversight in Biotechnology, with Mexico as the lead country and the collaboration of the United States. It was initially issued in August 2012. Data from FAOSTAT have been updated. SAFETY ASSESSMENT OF TRANSGENIC ORGANISMS: OECD CONSENSUS DOCUMENTS, VOLUME 5 © OECD 2016 84 – II.2. SQUASHES, PUMPKINS, ZUCCHINIS, GOURDS (CURCURBITA SPECIES) Species or taxonomic group The genus Cucurbita is well known for its cultivated species which in English are called by the general names of squashes, pumpkins, marrows and gourds, and in Spanish are commonly known as calabazas and zapallos or in some areas of the Americas by indigenous names. Other names have been given to Cucurbita species in countries where these species have been adopted into local agriculture, e.g. in the French language, citrouille, courgette and potiron. The cultivated Cucurbita species are: C. argyrosperma, which includes the cushaw type (long curved neck) of squash; C. maxima, which includes pumpkins and hubbard, turban and buttercup squash; C. moschata, which includes the winter squashes; and C.
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