HETEROTIC EFFECT OF TOMATO (Lycopersicon lycopersicum (L.) H. Karst) VARIETIES SUSCEPTIBLE TO ROOT-KNOT NEMATODE (MELOIDOGYNE SPP) IN SUDAN SAVANNA ZONE OF NIGERIA. FUDMAJAAT [Internet]. 2022 Feb. 21 [cited 2026 Feb. 9];7(1):72-9. Available from: https://jaat.fudutsinma.edu.ng/index.php/jaat/article/view/11