Studies on storage of ginger seed rhizome in zero energy cool chamber under northern dry zone of Karnataka

摘要

Storage studies in ginger with special emphasis to zero energy cool chamber (ZECC) and polyethylene bags storage were conducted under northern dry zone of Karnataka. Among the different storage methods, the rhizome stored in 250 gauge polyethylene bags with 0.5 per cent vents and kept in ZECC recorded minimum physiological loss in weight and the highest per cent recovery of seed rhizome (15.51 and 76.42% respectively) compared to the maximum physiological loss in weight and the lowest recovery in rhizome stored under sand layer (35.62 and 47.47 %, respectively) at 90 days after storage. However, rhizome stored under ZECC recorded minimum sprouting during the entire period of storage (6.53 %) with better recovery of seed rhizome (71.73 %) and highergermination after planting in the field (97.78 %). The treatment combination M4S3 (rhizome stored in 250 gauge polyethylene bag with 0.5 % vents and kept in ZECC after treating with Trichoderma harzianum) recorded minimum physiological loss in weight (14.37 %) and maximum recovery of seed rhizome (77.51 %) at the end of storage period. However, the lowest sprouting (5.52 %) during storage was in M_3S_3 (rhizome stored under ZECC after treating with Trichoderma harzianum) and recovered 74.92 % of seed rhizome at the end of storage period (90 days) while after planting in the field M_3S_3 recorded maximum germination (98.89 %) after 45 days of planting. The variation among three different seed rhizome treatments was non-significant during storage however, rhizome treated with Trichoderma harzianum recorded higher germination after field planting (97.78 %) at 45 days after planting.