Author: N. Hajra, F. Shahina and K. Firoza
Publishing Date: 2013
E-ISSN: 0255-7576
Volume: 31 Issue: 1
ABSTRACT:
Experiment was conducted to evaluate the efficacy of arbuscular myconbizal (AM) fungi (Gloms spp. and Gigaspora spp.) as bioprotectant against root-knot nematode Meloidogyne incognita in sponge gourd (L47a cylindrica (L.) Roem.). mycorrhizal plant of family Cucurbitaceae. All parameters were estimated in roots. shoot and leaves of mycorrhizal and non mycorrhizal plants. Physical/biochemical and carbon profile were taken into account. Comparative study clearly indicates the significant variations in all parameters. Leaf area and plant height were increased in mycorrhizal plants than non-mycorrhizal. while it showed a sharp decrease in nematode infected plants. same plants also showed less water content due to xylem vessels damage. However. in mycorrhizal plants. roots had large amount of carbohydrates indicating transfer of photosynthates to fungal partner. Nematode infected roots have least amount of carbohydrates showing a great sink of carbon to rhizosphere.