Effect of Sowing Time, Soil Temperature and Inoculum Density on Suppression of Fusarium Wilt in Lentil (Lens culinaris)

Authors

  • Abhijeet Ghatak Plant Pathology, Bihar Agricultural University, Sabour, Bhagalpur, Bihar (813 210), India
  • Nandani Shukla Plant Pathology, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar, Uttarakhand (263 145), India
  • Mohammad Ansar Plant Pathology, Bihar Agricultural University, Sabour, Bhagalpur, Bihar (813 210), India
  • Rekha Balodi Plant Pathology, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar, Uttarakhand (263 145), India
  • Jatinder Kumar Plant Pathology, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar, Uttarakhand (263 145), India

Keywords:

Disease escape, Fusarium, Soil temperature, sowing time, wilt

Abstract

Several questions remain unanswered on escape mechanism of lentil against Fusarium wilt caused by Fusarium oxysporum f. sp.Lentis. Consequently, this study was designed with few parameters including inoculum density, temporal sowing (associated with soil temperature) and its thermal effect with the pathogen. Increased amount of inoculum resulted higher number of diseased plants. However, increased inoculum was proved to be ineffective under cooler condition. Increase in inoculum density numerically enhanced disease incidence at each sowing time (temporal sowing); however, significant difference (p<0.05) increase in disease incidence was detected in the October sown batch. Early sowing associated with high soil temperature (22.6 °C) rendered maximum wilt incidence (97.2%), which is complemented in the laboratory test exhibited by maximum radial growth of the fungus at higher temperature (27 °C). This report suggests development of late sown variety could be a good option to suppress this disease.

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Published

2015-04-07

How to Cite

1.
Ghatak A, Shukla N, Ansar M, Balodi R, Kumar J. Effect of Sowing Time, Soil Temperature and Inoculum Density on Suppression of Fusarium Wilt in Lentil (Lens culinaris). IJBSM [Internet]. 2015 Apr. 7 [cited 2025 Sep. 21];6(Apr, 2):268-73. Available from: https://www.ojs.pphouse.org/index.php/IJBSM/article/view/701

Issue

Vol. 6 No. Apr, 2 (2015)

Section

Articles

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