Biocontrol of Heterodera cajani and Fusarium udum on pigeonpea using Glomus mosseae, Paecilomyces lilacinus and Pseudomonas fluorescens
1998
Siddiqui, Zaki A. | Mahmood, Irshad | Hayat, Shamsul (Aligarh Muslim Univ., Aligarh (India). Dept. of Botany)
Glomus mosseae, Paecilomyces lilacinus and Pseudomonas fluorescens were used alone or in combination to control the wilt disease complex of pigeonpea caused by the nematode Heterodera cajani and the fungus Fusarium udum. All three antagonists alone or in combination increased plant growth, nodulation, phosphorus contents and reduced nematode multiplication and wilting in infected plants. Treatment with G. mosseae or P. lilacinus caused similar increases in plant growth and nodulation. The use of P. fluorescens against F. udum caused a greater increase in plant growth and nodulation compared with its application against H. cajani. Greater growth and nodulation were observed when all the three antagonists were used together. The use of antagonists on plants inoculated with both pathogens caused a greater increase in plant growth and nodulation compared with plants inoculated with a single pathogen. Treatment with G. mosseae increased phosphorus contents both in pathogen inoculated and uninoculated plants whereas other antagonists increased the phosphorus content only in pathogen inoculated plants.
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