title: Symptomless Resistance of Alfalfa to Meloidogyne incognita acrita.
abstract: Penetration, development and migration of the cotton root-knot nematode, Meloidogyne incognita acrita, in resistant and susceptible alfalfa varieties was compared. Larvae entered both resistant and susceptible plants in approximately the same numbers. After 3 to 4 days, the number of larvae in resistant roots decreased sharply until at 7 days fewer than 5 larvae/seedling and no nematode development could be found. In susceptible roots, larvae became sedentary and developed normally; egg production began as early as 18 days after penetration of the host.
authors.forename: H W
authors.initials: HW
authors.lastname: Reynolds
authors.forename: W W
authors.initials: WW
authors.lastname: Carter
authors.forename: J H
authors.initials: JH
authors.lastname: O'Bannon