Vol. 12, Issue 8 (2023)

Author(s):
Thokchom Surjit Singh, Yanglem Herojit Singh, Ph. Sobita Devi, Bireswar Sinha, N Gopimohon Singh and Ng Taibangnganbi Chanu

Abstract:
Ginger is widely grown spice in India as well as in North East Region for its aroma and medicinal value. Even though it is one of the important spices in India, its cultivation is hampered by many biotic and abiotic factors. Among the biotic factors, rhizome rot or soft rot is the most devastating and destructive one. A field trial was conducted using ten native Trichoderma isolates (T. harzianum, ThCAUNCIPM-61, ThCAUNCIPM-41, ThCAUNCIPM-6, ThCAUNCIPM-44, T. viride, ThCAUNCIPM-25, ThCAUNCIPM-76, ThCAUNCIPM-18, ThCAUNCIPM-4) and one fungicide (copper oxychloride) to assess the disease and yield and yield contributing factors against F. oxysporum. Findings showed significant disease reduction as compared with the control. Besides chemical fungicide, copper oxychloride, T. viride treated plots showed lowest incidences (20.72 percent at Langol and 35.66 percent at Sawombung). In both the locations highest germination was observed in T. harzianum treated plot (96.67 percent at Langol and 97.78 percent at Sawombung) and the highest yield was found in copper oxychloride (20.11 tonnes / ha at Langol and 18.28 tonnes / ha at Sawombung). Among the Trichoderma spp., maximum yield was obtained with T. harzianum (18.60 tonnes / ha at Langol and 17.75 tonnes / ha at Sawombung). Higher yield was also observed in all other Tichoderma isolates treated plots and found to be better than the untreated plot.