8 75 Very little green leaf tissue left 9 100 Leaves dead - no green tissue left NIAB-TAG, Cambridge CB3 OLE Appendix 6 - Ear blight of wheat key EAR OF (Fusarium spp.) No. 13 Notes of assessment Carry out the assessment between GS 80-90. Select 20 ears at random from each plot. Estimate the percentage area infected on individual ears using the illustrations above as a guide. Record the mean value from the 20 assessments. For further details see Parry D W, Bayles R A & Priestley R H (1984). Resistance of winter wheat varieties to Ear Blight (Fusarium culmorum). Journal the National Institute of Agricultural Botany 16, 465-468. NIAB-TAG, Cambridge CB3 OLE Appendix 7 - Wheat glume blotch key Wheat Glume Blotch (Septoria Berk.) Key No. 1.6.3 nodorum _____________________________________________________________________ Percentage of ear affected Notes: Crops may be examined at any growth stage after GS 60 if glume blotch has appeared. Assess 30 ears selected at random from each plot. Assess the % ear affected on both sides of the ear and record a mean figure for that ear. Interpolate if necessary, e.g., if an ear falls between 10 and 25% give it a score in between, say, 15-20%. Ministry of Agriculture, Fisheries and Food (Publications), Tolcarne Drive, Pinner, Middlesex HA5 2DT Appendix 8 - Eyespot of wheat key Key No. 12 Eyespot of Wheat (Pseudocercosporella herpotrichoides)
8 75 Very little green leaf tissue left 9 100 Leaves dead - no green tissue left NIAB-TAG, Cambridge CB3 OLE Appendix 6 - Ear blight of wheat key EAR OF (Fusarium spp.) No. 13 Notes of assessment Carry out the assessment between GS 80-90. Select 20 ears at random from each plot. Estimate the percentage area infected on individual ears using the illustrations above as a guide. Record the mean value from the 20 assessments. For further details see Parry D W, Bayles R A & Priestley R H (1984). Resistance of winter wheat varieties to Ear Blight (Fusarium culmorum). Journal the National Institute of Agricultural Botany 16, 465-468. NIAB-TAG, Cambridge CB3 OLE Appendix 7 - Wheat glume blotch key Wheat Glume Blotch (Septoria nodorum Berk.) Key No. 1.6.3 _____________________________________________________________________ Percentage of ear affected Notes: Crops may be examined at any growth stage after GS 60 if glume blotch has appeared. Assess 30 ears selected at random from each plot. Assess the % ear affected on both sides of the ear and record a mean figure for that ear. Interpolate if necessary, e.g., if an ear falls between 10 and 25% give it a score in between, say, 15-20%. Ministry of Agriculture, Fisheries and Food (Publications), Tolcarne Drive, Pinner, Middlesex HA5 2DT Appendix 8 - Eyespot of wheat key Key No. 12 Eyespot of Wheat (Pseudocercosporella herpotrichoides)