| 单词 | centre of diversity |
| 释义 | > as lemmascentre of diversity centre of diversity n. the region within the geographical range of a variable species or group of species in which the greatest degree of genetic variation is exhibited, often inferred to correspond to the historical centre of origin of the species (or group of species); cf. centre of origin n. at Phrases 1t. ΚΠ 1931 J. B. S. Haldane in Notices Proc. Royal Inst. Great Brit. 1929–31 26 366 The areas overlap in the Punjab and neighbouring hill country, and it is here that the centre of diversity of bread wheat is found. 1976 Philos. Trans. (Royal Soc.) B. 275 145 The African rice (O. glaberrima) has its primary centre of diversity in the swampy area of the upper Niger River. 2019 Observer (Nexis) 11 Aug. 1 Despite finding their centre of diversity in the lowland tropics of south-east Asia, there are several banana species from the northerly..edges of their range that experience significant levels of frost, and a climate on a par with that of many areas of Britain. < as lemmas |
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