Southern root-knot nematode race SP6 is divided into two races
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چکیده
منابع مشابه
Sensitivity of Bedding Plants to Southern Root-knot Nematode, Meloidogyne incognita Race 3.
Thirty-two cultivars of 10 commonly-grown bedding plants, representing eight families, were evaluated for their response to infection by the root-knot nematode, Meloidogyne incognita race 3, under greenhouse conditions. Four ageratum cultivars, two marigold, and two salvia cultivars were rated resistant after exposure for 8 weeks. Four begonia, four celosia, one dianthus, one verbena, one vinca...
متن کاملIntrogression of Root-Knot Nematode Resistance into Tetraploid Cottons
Root-knot nematode (RKN) resistance introgression into tetraploid cotton (Gossypium spp.) and its ancestral genome origin were examined. Resistance sources (‘Acala NemX’, ‘Clevewilt 6’, Auburn 623 RNR) were compared with diverse germplasm using simple sequence repeat (SSR) markers from chromosomes 7, 11, and 14 and DNA sequence information. Differences (P < 0.05) were observed for mean root gal...
متن کاملRaces of the Barley Root-Knot Nematode, Meloidogyne naasi. I. Characterization by Host Preference.
The host preferences of populations of Meloidogyne naasi from England, California, Illinois, Kentucky and Kansas were compared. Among 22 plant species tested, most were hosts for isolates of all five populations; crabgrass was added to the list of known hosts. Differential reactions of isolates on creeping bentgrass, curly dock, sorghum, and common chickweed demonstrated the existence of at lea...
متن کاملRaces of the Barley Root-Knot Nematode, Meloidogyne naasi. III. Reproduction and Pathogenicity on Creeping Bentgrass.
Reproduction and pathogenicity of the five known races of Meloidogyne naasi on two selections of creeping bentgrass were compared. Toronto C-15 was a host for Races 3, 4 and 5, whereas Northmoor 9 supported reproduction of all five races. Differences in susceptibility and population increase demonstrated that the races could be separated by degree of reproduction on the two selections. Root wei...
متن کاملRaces of the Barley Root-Knot Nematode, Meloidogyne naasi. II. Developmental Rates.
The developmental rates of the five newly designated races of Meloidogyne naasi were compared on barley, oat and sorghum. Races 1, 2, 3 and 4 developed and reproduced on both barley and oat but not on sorghum. Race 5 developed and reproduced readily on sorghum but poorly on oat. A more rapid rate of development of Race 5 on both barley and sorghum than that of other races on barley demonstrated...
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ژورنال
عنوان ژورنال: Nematological Research (Japanese Journal of Nematology)
سال: 2017
ISSN: 0919-6765,1882-3408
DOI: 10.3725/jjn.47.29