Colour Strike Colour Strike The Colour Strike was an industrial action by technicians at all ITV companies from 13 November 1970 to 8 February 1971 (although some shows made during this period in black and white were having their first transmission as late as December 1971) who, due to a pay dispute with their management, refused to work with colour television equipment. At that time ITV had recently switched to colour transmissions, requiring the individual companies to invest heavily in new equipment. Early colour television studio cameras consisted of four tubes to relay the picture: three were receptive to colour (red, green
Seibel grapes only four parent grapes: two European (Vitis Vinifera) grapes: Aramon and Alicante Bouchet … one wild American grape: Jaeger 70 (V. Rupestris x V.Lincicumii)… and one rootstock, AxR1, which was created by crossing Aramon with a wild American Vitis Rupestris. Although Seibel bred tens of thousands of grapes, he did so almost entirely by continually crossing and re-crossing his original varieties, all of which were descended from the original four vines, so the basic gene pool of his collection remained largely unchanged. Almost all later grapevine hybridizers, such as Bertille Seyve and his father-in-law Victor Villard, would simply breed one