Biochemical basis of plant resistance in brinjal genotypes against shoot and fruit borer (Leucinodes orbonalis, Guenee) Chinnabbai CH1*, Dayakar S2, Sujatha A3, Anil Kumar P4, Nafeez Umar SK5 1Associate Professor, Department of Entomology, College of Horticulture, Venkataramannagudem 2Professor & Head, Department of Entomology, Agricultural College, Rajamahendravaram 3Professor (Entomology) & Dean of Student Affairs, Dr. YSRHU, Venkataramannagudem 4Professor & Head, Department of Plant Pathology, Agricultural College, Bapatla 5Assistant Professor, Department of Statistics and Computer applications, Agricultural College, Bapatla *Corresponding author E-mail: samithch@gmail.com, Mobile: 9951419888
Abstract The biochemical factors responsible for resistance in brinjal genotypes against shoot and fruit borer was investigated during kharif 2017-18 at college of Horticulture, Venkataramannagudem using sixty genotypes and three check cultivars. Among all the genotypes evaluated, IC 136061 registered lowest shoot infestation (9.01%) and fruit infestation (12.73%) due to the presence of high quantities of phenol, peroxidase, PAL in shoot (4.60 mg g-1, 6.62 units -1min-1g-1, 7.96 μmol -1 min -1 mg-1) and in fruit (5.31 mg g-1, 7.56 units -1min-1g-1, 8.26 μmol -1 min -1 mg-1) compared to Dommeru Local (Susceptible check-1) which received highest shoot infestation (34.99%), fruit infestation (46.77%) due to low phenol, peroxidase, PAL content in shoot (0.54 mg g-1, 1.62 units -1min-1g-1, 1.21 μmol -1 min -1 mg-1) and in fruit (0.61 mg g-1, 1.77 units -1min-1g-1, 1.43 μmol -1 min -1 mg-1). The brinjal genotypes IC 136061 with high phenol, peroxidase and PAL content in shoot-fruit could be used in breeding programmes for developing resistant cultivars against shoot and fruit borer. Top Keywords Biochemical basis, Resistance, Brinjal genotypes, Leucinodes orbonalis. Top |