Aphelenchoides besseyi is a seed-borne plant parasitic nematode and is widely distributed in.Most rice growing areas. Application of resistant cultivars requires the identification of.Resistance source which can, then be included in breeding programs to improve the local rice.Cultivars. Fourteen Iranian rice genotypes including improved and local varieties were.Evaluated for resistance to A. Besseyi in greenhouse condition. Screening for resistance carried.Out based on symptom expression and nematode populations. Among the, cultivars tested,, Binam Domsiah Khazar and Hassansarayi showed high resistance. Moderate resistance was.Identified, with Sepidroud Kadus Hassani and, Ramezani. Hashemi Deilamani and, Alikazemi.Were moderate susceptible and Tarom Nemat and, Neda ranked as high susceptible to.Nematode. Susceptible plants expresses also other typical symptoms such as shortening of flag.Leaf which twisted at apical portion and hinders the emergence, of panicle reduction of panicle.Length and the grain number spikelets with, distorted glumes and deformed kernels. Sometimes.Symptomless but infested plants were also found.
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