Part 1 Department of Agriculture Western Australia Experimental Summary 1979 A. Take-all of cereals B. Rhizoctonia Bare Patch Part II A. Minimum tillage Trials, 1979

CONTENTS PART I A. Take-all of cereals Take-all survey. Effect of nitrogen sources on take-all. 76LG25 (N = 50 kg/ha), 77E4 (N = 25 kg/ha), 77MT19 (N = 45 kg/ha), Take-all and root-soil pH : Residual effect 1979. 78LG3 (No treatment 1979). Take-all and the economics of Agras No.l. 79JE4 (N = 10 to 90), 79JE3 ( ), 79BA30 ( ), 79ES13 ( ), 79ES14 ( ), 79LG4 ( ), Summary p40a. Take-all, row spacing and rates of Agras No.l. 79ES39, 79ES41. Take-all and Agras No.2/DAP/Urea comparison 79LG5, 79LG6. Take-all following cleaning crops. 78JE5, 79El2. Effect of grass control on take-all. 77JE4. Long-term rotation and take-all. 73SG16, 77ES8, 79JE5. Take-all build-up on new land. 78JE4. Take-all build-up and rates of phosphorus on wheat. 78ES30. Continuous wheat and take-all. 74SG16. Take-all, mini-fallow and time of sowing. 79Ell. Take-all and hypo-virulent strains. 78LG30, 79El4. Yield potential assessment (take-all only) 79KA17, 79WH32. B. RHIZOCTONIA BARE PATCH Rhizoctonia mapping experiment. Unnumbered. PART II See separate at end of-Part I. ABBREVIATIONS USED D - Drilled with seed. G.S. - Growth stage based on H Fisher\u27s scale. NA - Not available. NS - Not significant at p = 0.05. N - Nitrogen. P - Phosphorus. TA - Take-all. TD - Topdressed. As - Ammonium sulphate. An - Ammonium nitrate (Agran 34). Sn - Sodium nitrate Agl - Agras No.l. Ag2 - Agras No.2. u - Urea. Pap - Di-ammonium phosphate. Take-all (Plant) Categories. Nil - No obvious infection. L - Light, less than 25% of the root system discoloured. M - Moderate, 25% to 75% of the root system discoloured, stem base sometimes discoloured. S - Severe, more than 75% of root system discoloured, stem base usually discoloured. Rhizoctonia % - Refers to only moderate and severe Rhizoctonia, i.e. more than 25% of roots ( per plant) showing typical brown pinched-off root tips Fusarium % - Refers to those plants showing typical dark brown water soaked discolouration of crown and stem base

Take-all of cereals. Rhizoctonia patch of cereals. Minimum tillage trials, 1982.

Take-all of cereals. 76LG25, 77E4, 77MT19, 82AL53, 82AL54, 82NA35, 82MT40, 79E12, 78JE4, 78ES30, 73SG16, 77ES8, 80JE15, 79E15, 74SG16. 80ES16, 81ES1 (previously 80ES17), 82E16, 82No35, 82E17, 82N 34 (formerly 76LG25), 82AL53, 82AL54, 81NA35, 81MT40, 79E12, 78JE4, 80JE15, 80JE15, 80ES38, Experiments not assessed in 1982 were, 77A16, 77M13, 77M56, 78M25, 77WH17, 77WH88. 74A43, 77E18, 77E52, 77MT15, 77MT51

Black leg of cabbage and related plants

BLACK LEG is a disease which attacks many kinds of cruciferous plants.Under certain conditions it can cause serious damage. In Western Australia it has been recorded on cabbages, cauliflowers and kales. The dry rot form damages swedes

Downy mildew of crucifers

DOWNY mildew of crucifers is of world wide distribution. In other parts of the world it has been recorded on a number of cruciferous plants, but to the present time this disease has only been recorded on cauliflower and cabbage in Western Australia

1975 Preliminary reports - take-all survey - wheat and barley crops

Introduction - Surveys to determine the incidence of take-all in wheat and barley crops have been carried out for the past three seasons. Unavoidable delays in the completion of a growth room has meant that finalization of results for take-all assessments have been delayed. 75A26, 75A27, 75A28 Part I and II, 75A29, 75E18, 75M42, 75M43, 75M44, 75M45, 75N21, 75SG14, 75SG15, 75SG17, 75WH63, 75WH64

Take-all of cereals. Rhizoctonia patch of cereals

Part 1. A. Take all of cereals: Effect of nitrogen sources on take-all. 76LG25 (N = 50kg/ha) 82NE34. 77E4 (N = 25kg/ha). 77MT19 (N = 45 kg/ha). B. RHIZOCTONIA PATCH OF CEREALS: Rhizoctonia patch on lupins - 82E17. Abbreviations used: D - Drilled with seed G.S. - Growth stage based on H. Fisher scale NA - Not available N – Nitrogen P - Phosphorus TA - Take-all TD - Topdressed D.D. - Direct drilled T.D.D. - Triple disc drill As - Ammonium sulphate An - Ammonium nitrate (Agran 34) Sn - Sodium nitrate Ag1 - Agras No. 1 Ag2 - Agras No. 2 U - Urea Dap - Di-ammonium phosphate LSD - Least significant difference at p = 0.05 * - Significantly different at p = 0.5 ** - Significantly different at p = 0.01 ***- Significantly different at p = 0.001 NS - No significant difference at p = 0.0