Advances in Applied Research

  • Year: 2020
  • Volume: 12
  • Issue: 1

Endophytic plant growth promoting bacteria (EPGPB) for the management of sheath rot of rice caused by Sarocladium oryzae

1Plant Pathology Unit, National Pulses Research Centre, Vamban, Pudukottai-622 303, Tamil Nadu, India

2Agriculture college and Research Institute, Kumulur, Trichy-621 712, Tamil Nadu, India

3Dept. of Plant Pathology, Uttar Banga Krishi Viswavidyalaya, Cooch Behar-736 165, West Bengal, India

*Corresponding author: Email: ahila.devi1@gmail.com

Online published on 19 September, 2020.

Abstract

Sheath rot of rice, one of the serious diseases of rice caused by Sarocladium oryzae has resulted in heavy yield loss in the state of Tamil Nadu. Hence, the present work was carried out to study the management of sheath rot of rice using endophytic plant growth promoting bacteria (EPGPB). The population was enumerated by serial dilution technique and the endophytes were found to be higher in ADT 42 variety with the population of 4 × 106 cfu g−1 of tissue. Seed bacterization (SB) + seedling root dip (SRD) + spray with endophytes under milky stage and boot leaf stage were found to increase the vigor index of rice seedlings significantly. The increase in mean plant height (87 cm) and 1000 grain weight (26 g) due to Seed bacterization (SB) + seedling root dip (SRD) + spray with endophytes.

Keywords

Rice sheath rot, Growth promotion, Population