1. Anon . (1982 ). Cauliflowers, MAFF/ADAS Reference Book 131 . London, Grower Books, 87 pp.
2. Anon . (1987 ). Report on crops and supplies of fruit and vegetables in England and Wales: Position at 28th February 1987 .M.A.F.F. Report No. 706, 22 pp.
3. Anon . (1987 ). Recommended varieties of cauliflowers, 1986, and a descriptive list for Thanet .NIAB vegetable growers leaflet No. 1, pp.14 -15 .
4. PRELIMINARY RESULTS IN MEASURING THE HARDINESS OF PLANTS
5. INVESTIGATIONS OF THE HARDINESS OF PLANTS BY MEASUREMENT OF ELECTRICAL CONDUCTIVITY