Reaction Of Golden Yellow Cassava To Meloidogyne Spp. Inoculation

Ruben  M. Gapasin,

Reaction Of Golden Yellow Cassava To Meloidogyne Spp. Inoculation

Abstract:

The reaction of Golden Yellow cassava differed at varying inoculum levels of Meloidogyne incognita and M. javanica. Initial populations of approximately 10,000 and 20,000 eggs of M. incognita significantly reduced (P=0.05) the root and top weights of cassava over the control; however, reduction in tuber weight was not significant between all treatments. Although there was a reduction in root, tuber and top weights at varying inoculum levels of M. javanica no significant differences were found between the treatments.

References:

BRATHWAITE, C. W. D. 1972. Preliminary studies on plant parasitic nematodes associated with selected root crops at the University of West Indies. Pl. Dis. Reptr. 56:1077-1079.
CASTILLO, M. B., and MARANAN, L. R. 1974. Plant parasitic nematodes associated with sweet potato and cassava in the Philippines. Phil. Phytopath. 10: overline 56 - 70
CORTADO, R. V., and DAVIDE, R. G. 1968. Survey, identification, and pathogenicity of nematodes associated with tobacco in Cagayan Valley and Ilocos Region. Phil. Agric. 51:779-801.
DROPKIN, V. H. 1972. Pathology of Meloidogyne: galling, giant cell formation, effects on host physiology. OEPP/EPPO Bul. 6: 23-32.
EDWARDS, E. E. 1953. The root eelworm on weeds and cultivation plants in the Gold Coast. J. Helminth. 27:181-184.
EDWARDS, E. E. 1955. Further observations on the occurrence of nematodes of the genus Meloidogyne in the Gold Coast. J. Helminth. 29:153-170.
GAPASIN, R. M. 1979. Survey and identification of plant parasitic nematodes associated with sweet potato and cassava in Leyte. Ann. Trop. Res. 1(1): 20-26.
HOGGER, C. H. 1968. Nematodes on cassava. Ithaca, N. Y., Cornell University Department of Plant Pathology. 8 p.
HOGGER, C. H. 1971. Plant parasitic nematodes associated with cassava. Tropical Root and Tuber Crops Newsletter 4:4-9.
SASSER, J. N. 1976. Suggested procedures for obtaining and applying root-knot nema-tode inoculum and for determining the amount of reproduction on host plants. In: Pro-ceedings of the Asian Regional Planning on Root-knot Nematode Research held at CEC, UPLB, College, Laguna, Philippines.
TAYLOR, A. L. and SASSER, J. N. 1978. Biology, identification and control of root-knot nematode (Meloidogyne species). International Meloidogyne Project. North Caro-lina State University, Raleigh, N. C. 27607.