Biochemical and histological changes associated with downy mildew (Plasmopara Halstedii (farl.) berl. and de toni) infection in sunflower (Helianthus Annuus L.)

par Kumar,P.B.R., Kulkarni, M.J., Rao, V.B.N., Chandrika, K., Prasad, D.T., Gowda B.V.R.