The Hunt for Mungbean (<i>Vigna radiata</i> (L.) Wilczek) Genotypes and Breeding Lines Resistance to South Indian Bruchid Strain
Santhi Madhavan Samyuktha,
Devarajan Malarvizhi,
Irulappan Mariyammal,
Adhimoolam Karthikeyan,
Devina Seram,
Manickam Dhasarathan,
Sundarrajan Juliet Hepziba,
Venugopal Sheela,
Arumugam Thanga Hemavathy,
Duraisamy Kavithamani,
Shanmugam Kavitha,
Natesan Senthil
Affiliations
Santhi Madhavan Samyuktha
Department of Plant Breeding and Genetics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai 625104, India
Devarajan Malarvizhi
Agricultural Research Station, Tamil Nadu Agricultural University, Bhavanisagar 638451, India
Irulappan Mariyammal
Department of Plant Breeding and Genetics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai 625104, India
Adhimoolam Karthikeyan
Department of Biotechnology, Centre of Innovation, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai 625104, India
Devina Seram
Department of Entomology, School of Agriculture, Lovely Professional University, Phagwara 144001, India
Manickam Dhasarathan
Agro Climate Research Centre, Directorate of Crop Management, Tamil Nadu Agricultural University, Coimbatore 641003, India
Sundarrajan Juliet Hepziba
Department of Plant Breeding and Genetics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai 625104, India
Venugopal Sheela
Department of Rice, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore 641003, India
Arumugam Thanga Hemavathy
Department of Pulses, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore 641003, India
Duraisamy Kavithamani
Department of Millets, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore 641003, India
Shanmugam Kavitha
Department of Plant Genetic Resources, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore 641003, India
Natesan Senthil
Department of Plant Molecular Biology and Bioinformatics, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore 641003, India
Mungbean (Vigna radiata) is an important short-season legume widely cultivated in Asia, particularly India. It is highly susceptible to bruchids and developing bruchid resistance is an important goal in mungbean breeding programs. In the present study, 52 mungbean genotypes were evaluated for bruchid resistance based on the “no-choice test” and identified two highly resistant genotypes (V2802BG and V2709) with no adult emergence and seed damage. Further, these two resistant genotypes were crossed with six high-yielding bruchid susceptible cultivars (CO 5, CO 6, CO 7, CO 8, VBN 2, and VBN 3), and 12 independent F1 populations were generated. Of these, one population derived from CO 6 × V2802BG was selected (based on the good combining ability of the parents) and forwarded to later generations to trace the bruchid-resistant lines. A total of 159 F2:3 families were screened for bruchid resistance, and the results showed that seven families were highly resistant, whereas the remainder were resistant to highly susceptible. Further, those seven families were evaluated in F4 and F5 generations. As a result, five highly resistant lines (BSR-GG-1-49-3-1, BSR-GG-1-56-2-2, BSR-GG-1-160-5-3, BSR-GG-1-170-2-4, and BSR-GG-1-198-1-4) with good agronomic performances were identified. The newly developed lines could be tested in multi-location trials and then be utilized as a potential source of genetic material for improving the bruchid resistance in mungbean breeding programs.
