Crop diversity between 20 and 90 percent crop losses in the Congo. The FAO emergency relief and rehabilitation program is assisting vulnerable returnee populations in the African Great Lakes Region through mass propagation and distribution of CMD resistant or highly tolerant cassava. A well known occurrence of disease susceptibility in crops lacking diversity concerns the 'Gros Michel', a seedless banana that saw world marketing in the 1940s. As the market demand became high for this particular cultivar, growers and farmers began to use the Gros Michel banana almost exclusively. Genetically, these bananas are clones, and because of this lack of genetic diversity,
Crop top gear of American football with no shirt resembles a crop top. Eventually cropped jerseys became available which carried over to several 1980s telecasts. Men also started to wear crop tops regardless of sport. Because of the varied acceptance for men wearing no shirt (eliminating the need for a crop top), and due to a change in school dress codes as well as peer pressure, men usually do not wear crop tops. Various crop tops have been worn by rappers as well as American football athletes. However, in 2015 the NCAA has increased restrictions on men wearing crop tops which also