Varietal Screening of Helicoverpa armigera (Hubner) in Groundnut Genotypes from Gujarat
M. L. Naghera *
Department of Entomology, Junagadh Agricultural University, Junagadh, Gujarat-362001, India.
A. M. Bharadiya
Department of Entomology, Junagadh Agricultural University, Junagadh, Gujarat-362001, India.
Pooja Kumari Meena
Department of Agronomy, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology Udaipur, Rajasthan -313001, India.
Asha Kumari
Department of Biotechnology, Junagadh Agricultural University, Junagadh, Gujarat-362001, India.
Harshad Sodhaparmar
Department of Biochemistry, Junagadh Agricultural University, Junagadh, Gujarat-362001, India.
Vidisha R. Umaretiya
Department of Biotechnology, Anand Agricultural University, Anand, Gujarat-388110, India.
Lalita Kumari
Department of GPB, College of Agriculture, Anand Agricultural University, Anand, Gujarat-388110, India.
*Author to whom correspondence should be addressed.
Abstract
Research work was executed at Main Oilseed Research Station, Junagadh Agricultural University, Junagadh during kharif, 2024 on the topic. During the research period twenty-three genotypes/varieties of groundnut were screened and categorized on the basis of larval infestation on each variety. The results revealed that the genotype JVG-26 (0.53 larvae/plant) had the minimum larval population and contradictorily, the highest infestation was observed in JVG-21 (1.56 larvae/plant). Other recorded infestations ranged from 0.84 to 1.52 larvae per plant in different genotypes/varieties. Also, none of the genotypes/varieties were found highly resistant and highly susceptible against H. armigera and with that four genotypes were categorized as resistant, which includes JVG-26, JVG-19, JVB-LS-2591 and JB-1614. Out of twenty-three genotypes/varieties nine were categorized as moderately resistant and five genotypes/varieties were moderately susceptible. However, rest five genotypes were susceptible to H. armigera as the larval population recorded ranged from 1.34 to 1.56 larvae per plant.
Keywords: Helicoverpa armigera, resistant, screening, susceptible