Management of Rhizoctonia solani, Fusarium solani and Meloidogyne incognita by Silicon dioxide nanoparticles and Rhizobium ciceri alone and in combination on chickpea Volume 1 - Issue 2

Zaki A. Siddiqui* and Sumaiya Aziz

• Department of Botany, Aligarh Muslim University, India

Received: September 08,2020   Published: September 23,2020

Corresponding author: Zaki A. Siddiqui, Department of Botany, Aligarh Muslim University, India

DOI: 10.32474/JBRS.2020.01.000109

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Abstract

Effects of silicon dioxide nanoparticles (SiO₂ NPs) and Rhizobium ciceri was observed alone and in combination on Rhizoctonia solani/ Fusarium solani / Meloidogyne incognita on the growth, photosynthetic pigments (chlorophyll and carotenoid) and proline contents of Cicer arietinum.
Inoculation of M. incognita resulted in a greater reduction in plant growth, photosynthetic pigments and higher increase in proline contents than other test pathogens. Inoculation of R. ciceri or foliar spray of SiO₂ NPs (0.10 mg ml^-1) with pathogens under study resulted in increased plant growth, photosynthetic pigments and proline contents than without R. ciceri / NPs. Combined application of NPs with R. ciceri resulted in a greater increase in plant growth, photosynthetic pigments and proline contents in plants with pathogens than with NPs or R. ciceri. Plants without R. ciceri had a very poor root nodulation but nodulation was high in plants with R. ciceri. Pathogens under study and NPs had adverse effect on nodulation caused by R. ciceri. Wet rot and black root rot indices were 4 when R. ciceri and F. solani were inoculated respectively. R. ciceri / NPs reduced wet root rot, black root rot indices, galling and population of M. incognita. Disease indices, galling and population of M. incognita were reduced greatly by use of R. ciceri plus SiO₂ NPs.