Influence of weather parameters on Anthracnose in black pepper (Piper nigrum L.) in the upper Brahmaputra valley zone of Assam

Authors

  • RAJSHREE VERMA Department of Plant Pathology, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India https://orcid.org/0000-0002-8231-4737
  • APURBA DAS Department of Plant Pathology, Assam Agricultural University, Jorhat-13, Assam, India
  • PRETY REKHA NARZARY Department of Sericulture, Forest College and Research Institute, Tamil Nadu Agricultural University, Mettupalayam, Tamil Nadu, India
  • SANJIB SHARMA Department of Horticulture, Assam Agricultural University, Jorhat-13, Assam, India

DOI:

https://doi.org/10.54386/jam.v25i4.2408

Keywords:

Anthracnose, Black pepper, Disease incidence, Rainfall, Rainy days, Relative humidity

Abstract

Black pepper (Piper nigrum L.) production faces several challenges due to various diseases, with anthracnose being the most significant. It is caused by Colletotrichum gloeosporioides (Penz.) Penz. and Sacc., a fungal plant pathogen that leads to severe infections in black pepper plants, both in nurseries and in the field. The occurrence of anthracnose disease is highly influenced by weather conditions. Epidemiological studies were conducted at Assam Agricultural University, Jorhat, Assam from 2019 to 2021 to determine the impact of weather factors such as temperature, rainfall, rainy days, and relative humidity on anthracnose incidence in seven different black pepper varieties. Upon analyzing the recorded data, it was found that rainfall, minimum temperature, rainy days, and morning relative humidity are the most significant contributors to disease occurrence. However, the role of maximum temperature, evening relative humidity, and bright sunshine hours was statistically non-significant. Data from 2019 and 2020 were further analyzed using stepwise multiple regression to estimate anthracnose incidence in individual black pepper varieties. These regression models were subsequently validated using data of 2021. The root mean square error values varied between 0.0001 and 0.0011, indicating that the models are acceptable. 

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Published

30-11-2023

How to Cite

VERMA, R., DAS, A., NARZARY, P. R., & SHARMA, S. (2023). Influence of weather parameters on Anthracnose in black pepper (Piper nigrum L.) in the upper Brahmaputra valley zone of Assam. Journal of Agrometeorology, 25(4), 600–605. https://doi.org/10.54386/jam.v25i4.2408

Issue

Vol. 25 No. 4 (2023): December (Silver Jubilee Publication)

Section

Research Paper

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Copyright (c) 2023 RAJSHREE VERMA, APURBA DAS, PRETY REKHA NARZARY, SANJIB SHARMA

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