Author : Hoesni Heroetadji, R.

Summary : Fifty-two sugarcane varieties were screened for resistance to two species of root-knot nematodes, Meloidogyne incognita and M. javanica. Resistance ratings were based on the averages of computed indices of the four assessment parameters, viz., root galling, number of egg masses per gram roots and number of eggs per egg mass. Twenty-six, 10, 8, and 8 varieties were found resistant, moderately resistant, moderately susceptible, and susceptible to M.incognita, respectively. Java Lahaina and Japonesa were the most resistant whereas CP 33-224, and Hind Special were the most susceptible. On the other hand, 20, 14, 6, and 12 varieties were found resistant, moderately resistant, moderately susceptible, and susceptible to M. javanica respectively.Phil 65--63 was the most resistant, whereas Fiji 59, the most susceptible.