Evaluation of Total Phenol Content of some Common Paddy Cultivars of Odisha with the Application of Biofertilizer in Assessing Resistance to Meloidogyne graminicola

The total phenol content of four common paddy cultivars Odisha namely Abhisek (R), Manik (MR), Bas-12 (S) and Lalat (HS) were studied under pot culture condition in the net house following CRD design different treatments using biofertilizer Azospirillum. brasilense alone or combinations against rice root-knot nematode Meloidogyne graminicola. objective work was to study quantitative changes phenolic compounds effect A.brasilense induction on test nematode. It observed that there a significant increase both resistant moderately treatment T2 (Azospirillum @ 12kg/ha at 15DAT + M. graminicola 1000J2 after 7days Azospirillum inoculation) seen higher than susceptible variety highly as compared control T5 with percentage 38.77%, 36.58%, 35.02% 39.28% respectively shoots. Similarly trend continued roots containing 0.25mg/g Abhisek, 0.18mg/g Manik, 0.21mg/g 0.19mg/g other treatments. There change (p≤0.05) T3 (A alone) all varieties followed by (A→N), T1 (N→A) respect T5. Basically, shoots plants more their roots. But invasion action A. amount increased cultivars. T4 (N R, MR, S HS recorded compare but less T3, T2, nematode, which could exacerbating for eco-friendly RKN management approach.