1Department of Nematology, Tamil Nadu Agricultural University, Coimbatore— 641003, India
2Department of Vegetable Science, Tamil Nadu Agricultural UniversityCoimbatore — 641003, India
*Corresponding author; E-mail: shanthigovardhan@yahoo.co.in
Online published on 18 January, 2022.
Root-knot nematode, Meloidogyne incognita is sedentary endoparasite in Okra (Abelmoschus esculentus L. Moench) Resistance is the best way to mitigate nematode infestation, and okra genotypes were challenged with root knot nematode to evaluate their resistance. The experiments were conducted with 62 genotypes and concluded with 2 groups of genotypes: 6 moderately resistance and 56 susceptible to root-knot nematode. Among all genotypes, GED-19, showed moderately resistance reaction to root knot nematode. Bioactive molecules of GED-19 under monotrophic condition (host alone) and ditrophic interaction (host and nematode) were identified with gas chromatography- mass spectroscopy. Under ditrophic interaction host produced about 14 different biomolecules; 10 molecules were produced under monotrophic condition. Oleic acid and linoleic acid were identified with antinemic properties. Plants produces various biomolecules having unique function which contributes for the plant growth directly and indirectly.
Bioactive molecules, Gas chromatography- mass spectroscopy, Resistance, Okra genotypes