The reaction of tomato plants carrying Mi-1 gene to different inoculation densities of Meloidogyne incognita (Kofoid and White, 1919) Chitwood, 1949
Tevfik Özalp 1, B-C
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Plant Protection, Akdeniz University Faculty of Agriculture, Department of Plant Protection, Faculty of Agriculture, University of Akdeniz, Antalya, Turkey
A - Research concept and design; B - Collection and/or assembly of data; C - Data analysis and interpretation; D - Writing the article; E - Critical revision of the article; F - Final approval of article
Submission date: 2017-09-23
Acceptance date: 2018-01-02
Corresponding author
Zübeyir Devran   

Plant Protection, Akdeniz University Faculty of Agriculture, Department of Plant Protection, Faculty of Agriculture, University of Akdeniz, 07058 Antalya, Turkey
Journal of Plant Protection Research 2018;58(2):124-129
The response of the Mi-1 gene to different densities of Meloidogyne incognita race 2 was investigated under controlled conditions. Susceptible and resistant tomato seedlings were inoculated with 25, 50, 100, 200, 400, 1000, 2000, 5000 and 10000 second-stage juveniles of M. incognita. Plants were uprooted 8 weeks after inoculation and the numbers of egg masses and galls on the roots, and second-stage juveniles in 100 g soil per pot were counted. In susceptible plants, there was a correlation between the number of egg masses on roots until 2000 J2 inoculum densities. In resistant plants, when inoculum densities increased, the number of egg masses and galls also increased. The reproduction factor ratio was > 1 in the susceptible plant and < 1 in the resistant plant. The data showed that the 5000 J2 inoculum was a critical limit, and 10000 J2s were above threshold for resistant plants. The data indicate that densities of M. incognita can seriously affect the performance of the Mi-1 gene.
The authors have declared that no conflict of interests exist.
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