Abstract
Ginger (Zingiber officinale) is a valuable cash crop in the northeastern hill of India and rhizome rot incited by Pythium aphanidermatum is a highly destructive in all the ginger growing areas of Mizoram. Incidence of soft rot disease recorded in the state varied from 7.23 to 40.26% and 5.23 to 34.84% in 2012 and 2013, respectively. An experiment was conducted to evaluate the efficacy of integrated module of chemicals and non-chemicals against soft rot disease of ginger at ICAR-RC for NEH Region, Mizoram Centre, Kolasib, during 2012 and 2013. The pot culture study revealed that the highest germination percent (92.0 and 87.0%), least soft rot incidence (9.6 and 13.2%) and maximum yield (172.03 and 169.43 g/plot) were recorded in the treatment T3 i.e. treatment of rhizomes with fungicides, pyraclostrobin [strobilurins 20% at 0.2% for 30 min, followed by soil drenching with copper oxychloride (blitox 50 W) at 0.3%] for three times starting with disease initiation at 20 days interval. The two years field study indicated that rhizome treatment (T4) in hot water at 47 °C for 30 min and soil application of Trichoderma harzianum at 2.5 kg/50 kg FYM/ha, followed by three drenching of copper oxychloride (0.3%) was most effective in limiting the incidence of soft rot (19.29%) on ginger besides having their significant response in improving the growth and yield (41.90 q/ha).
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Acknowledgments
The authors are grateful to the Director of Research, Dr. Y.S. Parmar University of Horticulture and Forestry, Nuani, Solan, Himachal Pradesh and the Director of ICAR RC NEH Region, Umiam, Meghalaya for financial help through the network project (Project code: OXX02243) on “Management of soft rot of ginger” under Mini Mission-1 a centrally sponsored scheme for integrated development of horticulture in Himachal Pradesh. Authors thank the two anonymous reviewers and the editors for improving the previous version of the manuscript.
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Ratankumar Singh, A., Dutta, S.K., Boopathi, T. et al. Integrated management of soft rot of ginger in Northeastern hills of India. Indian Phytopathology 71, 83–89 (2018). https://doi.org/10.1007/s42360-018-0001-7
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DOI: https://doi.org/10.1007/s42360-018-0001-7