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Occutrrence of Root-knot Nematodes in Sweet Potato Fields and Resistance Screening of Sweet Potato Cultivars  

Choi, Dong-Ro (Applied Entomology Division, National Institute of Agricultural Science & Technology, RDA)
Lee, Jae-Kook (Applied Entomology Division, National Institute of Agricultural Science & Technology, RDA)
Park, Byeong-Yong (Ginseng & Medicinal Crop Division, National Institute of Crop Science, RDA)
Chung, Mi-Nam (Evaluation and Coordination office, General Service Division, Rural Development Administration)
Publication Information
Korean journal of applied entomology / v.45, no.2, 2006 , pp. 211-216 More about this Journal
Abstract
Total of 36 sweet potato field soils were sampled to survey the occurrence of the root-knot nematodes (RKN). The 61% of sweet potato fields in Haenam, 40% in Iksan and 31% in Yeju were infested with RKN, respectively. Average population density of RKN was 324 juveniles per 300 g soil. The resistance screening of sweet potato cultivars against RKN was carried out by using clay pots in a greenhouse. Average temperature under ground 10 cm in pot was 21.5$^{\circ}C$ during the test. There was no difference in number of egg sacs among different inoculation methods, however the egg-inoculation method was easy for treatlnent and had stable far results. The multiplication ratio of Melioidogyne incognita differed from 6.3 times (Jeungmi) to 63.2 times (Yulmi) by sweet potato cultivas. There were no cultivars showing resistance to M. incognita, but Jinmi, Jeungmi and Borami had resistance to if arenaria, M. hapla and M. javanica.
Keywords
Meloidogyne incognita; Occurrence; Resistance; screening; Sweet potato;
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  • Reference
1 Tarumoto, I. 1992. Breeding of resistant varieties to root-knot nematode, Meloidogyne incognita. Senchu Kenkyu no ayumi p282-285
2 Choi, Y. E. & H. Y. Choo. 1978. A study on the root-knot nematodes (Meloidogyne spp.) affecting economic crops in Korea. Korean J. Plant Protec., 17: 89-98   과학기술학회마을
3 Kondo, T, I. Hayashi, S. Anazawa, T. Yamasaki, W. Yamamoto, T. Saigusa. 1972. Varietal difference of sweet potato in susceptibility to the root-knot nematode, Meloidogyne incognita. Jpn, J. Nematol. 1: 14-17
4 Clark, C. A. and J. W. Moyer. 1988. Compendium of sweet potato disease. Am. Phytopathol. Soc. p41-49
5 Bonsi, C. K. & B. R. Phills. 1979. Reaction of twelve sweet potato cultivars and breeding lines to two root-knot species with three experimental methods. Horticulture 14(4): 539-541
6 Canto-Saenz, M. 1985. The nature of resistance to Meloidogyne incognita (Kofoid & White, 1919) Chitwood, 1949. An Advanced treatise on Meloidogyne edited by J. N. Sasser and C. C. Carter, Vol. 1. Biology and Control p225-231
7 Fassuliotis, G. 1985. The role of nematologist in the development of resistance cultivars. An Advanced Treatise on Meloidogyne Vol. I: Biology and Control edited by J. N. Sasser and C. C. Carter p234-240
8 Riggs, R. D. and N. N. Winstead. 1956. Studies on resistance in tomato to root-knot nematodes and on the occurrence of pathogenic biotype. Phytopathol. 49: 716-724
9 Yoshida, M. 1992. The southern root-knot nematode, Meloidogyne incognita. Senchu Kenkyu no ayumi p 133-137