Performance of turmeric genotypes for growth, yield and foliar disease incidence under Terai region of West Bengal

A field experiment was undertaken at ICAR-AICRP on Spices, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, West Bengal for four consecutive years i.e., from 2016-17 to 2019-20 to study the performance of twelve turmeric genotypes namely LTS01, LTS02, RH80, RH9/90, IT10, IT23, IT36, NDH11, NDH128, TCP191, TCP2 (Local check) and Prathiba (National Check) for growth, yield, dry recovery and foliar disease incidence. The experiment was laid out in randomized block design with three replications. The pooled data of the experiment revealed that the highest yield (38.73 t/ha) was recorded by TCP191 followed by IT10 (24.65 t/ha) and the lowest yield was recorded by IT23 (16.96 t/ha). Among the different evaluated genotypes, the highest dry recovery (22.63%) was recorded in TCP191 followed by TCP2 (22.00%) and the lowest was recorded in RH 9/90 (20.23%). With respect to leaf spot and leaf blotch, the lowest disease incidence was recorded by TCP191 (3.15 PDI & 2.61 PDI, respectively) followed by LTS1 (8.36 PDI, & 9.46 PDI, respectively). Thus, considering the yield and reaction to disease incidence of turmeric genotypes, TCP191 may be recommended for cultivation in the Terai zone of West Bengal, India.