The research was conducted on evaluation of biological agents and organic amendments against Macrophomina phaseolina of cowpea at The Department of Plant Pathology, S. D. Agricultural University Sardarkrushinagar, Gujarat during2018-2019. Seven known antagonists were tested in vitro for their antagonism to M. phaseolina using dual culture method. T. harzianum (Sardarkrushinagar) and T. viride (Sardarkrushinagar) were potent antagonists of M. phaseolina. The six organic amendments at three different concentrations were tested against M. phaseolina by poisoned food technique in vitro. Significantly least mycelium growth of M. phaseolina was recorded in the extract of neem cake followed by mustard cake. Vermicompost and Farm yard manure were less effective against M. phaseolina.
Author(s) Details:
Kajalben S Pandya
Department of Plant Pathology, C. P. College of Agriculture, S.D. Agricultural University, Sardarkrushinagar, Gujarat, India.
R L Meena
Department of Plant Pathology,College of Agriculture, S. D. Agricultural University, Tharad, Gujarat, India.
K R Chaudhari
Department of Plant Pathology, C. P. College of Agriculture, S.D. Agricultural University, Sardarkrushinagar, Gujarat, India.
K K Patel
Department of Plant Pathology, C. P. College of Agriculture, S.D. Agricultural University, Sardarkrushinagar, Gujarat, India.
Recent Global Research Developments in Root Rot Disease in Cowpea Caused by Macrophomina phaseolina
Prevalence, Incidence, and Severity in Northern Ghana: A study conducted in Northern Ghana identified Macrophomina phaseolina as the causal organism of cowpea root rot. The research highlighted significant differences in disease incidence and severity across various locations under both rain-fed and irrigated conditions [1].
Integrated Management Strategies: Research from the University of Agricultural Sciences, Dharwad, India, focused on integrated management of stem and root rot using fungicides, bioagents, and organic manures. The study found that seed treatment with carboxin and thiram significantly reduced disease incidence and increased yield [2] .
Abiotic Stress Impact: A study published in Springer examined the impact of abiotic stress on the interaction between Macrophomina phaseolina and cowpea. The research emphasized the combined effects of drought and disease on cowpea health [3] .
Identification of Resistant Genotypes: Researchers screened 154 cowpea genotypes to identify sources of genetic resistance to stem and root rot. This study, conducted at the University of Agricultural Sciences, Dharwad, found several genotypes with potential resistance[4] .
Pathogenicity and Morphological Characteristics: Another study detailed the morpho-cultural characteristics and pathogenicity of Macrophomina phaseolina, confirming its role in causing root rot in cowpea. This research provided insights into the pathogen’s behavior and its impact on cowpea crops[1] .
References
- Lamini, S., Cornelius, E. W., Kusi, F., Danquah, A., Attamah, P., Mukhtaru, Z., … & Mensah, G. (2020). Prevalence, incidence and severity of a new root rot disease of cowpea caused by Macrophomina phaseolina (Tassi) Goid in Northern Ghana. West African Journal of Applied Ecology, 28(2), 140-154.
- Gireesha, D., Prabhu, H. V., Patil, P. V., & Gowda, G. V. Integrated Management of Stem and Root Rot of Cowpea Caused by Macrophomina phaseolina (Tassi.) Goid. using Fungicides, Bioagents and Organic Manures. Legume Research-An International Journal, 1, 8.
- Ranjan, S., Mirchandani, R. & Senthil-Kumar, M. Abiotic stress impact on the interaction between Macrophomina phaseolina and crop plants. Plant Physiol. Rep. 29, 18–27 (2024). https://doi.org/10.1007/s40502-023-00753-5
- Gireesha, D., Prabhu, H. V., Patil, P. V., & Gowda, G. V. Integrated Management of Stem and Root Rot of Cowpea Caused by Macrophomina phaseolina (Tassi.) Goid. using Fungicides, Bioagents and Organic Manures. Legume Research-An International Journal, 1, 8.