BP Singh

156 Baleshwar Singhplanting material are hot water treatment (HWT), dry heattreatment and use of chemicals. Some of the recommendedtreatments for different crops/pathogens are given in Table-I.Table 1.Laboratory methods for salvaging seeds and plantingmaterials infected with pathogenic bacteriaCrop Pathogen TreatmentHot water TreatmentCabbage Xanthomonas campestris HWT of seed at S2"C for 30 minpv. cllmpestrisCarrot X. campestris pv. HWT of seed at 50-S2"C for 10 min.carotaeor 128"F for 11 to 12 minCauliflower Erwinia carotol1ora HWT of seed at SO"C for 18 minsub sp. carotovoraXanthO/1l011aS campestrispv. cCl1npestrisHWT at 122"F for 25 minChilli E. caratovora sub sp. HWT of seed at 50"C forcarotovora20.min., 4 days before sowingX. campestris pv. HWT of seed at SOnC £01' 10 min.vesicatoriaCotton X. caml'estris pv, Immersion of seed in hot watermalvacearumat 60°C for 10 min.Cowpea X. campestris pv. HWT qf seed at SO"C for 30vignicolaminGuar X. campestris pv. HWT of seed at 50"C for 10cyamapsidismin.Larkspur E. carotovora sub sp. Seed treatment at 50"C andatrosepticaS5"C for 10 min.Rice X. oryzae pv. oryzae Seed soaking in normal water for 12hr then at 53"C for 30 min. 01'soaking for 12 h in ceresan(500ppm)+ Agrimycin -100 (250 ppm) andlater HWT at 52"C for 30 min.Pseudomonasfuscovagil1aeHWT of seed at 55"C for 20 minSesame X. campestris pv. HWT at 51-52°C for 10 min.sesami