Pathotypes Detected Among Populations of Pratylenchus neglectus Collected From Montana
نویسندگان
چکیده
منابع مشابه
Differential Pathogenicity of Four Pratylenchus neglectus Populations on Alfalfa.
A Pratylenchus neglectus population from lltah (UT3) was more virulent to Lahontan alfalfa than other P. neglectus populations from Utah (UT1, UT2) and Wyoming (WY). All alfalfa plants survived at 24 +/- 3 C when inoculated with WY, UT1, or UT2 at initial populations (Pi) of 500, 1,000, and 5,000 nematodes per plant. At Pi 10,000 with WY, UT1, or UT2, plant mortality was 15, 15, and 20%, respec...
متن کاملBiology and Pathogenicity of Pratylenchus neglectus on Alfalfa.
Pratylenchus neglectus reduced the growth of alfalfa cultivars in greenhouse and growth chamber studies. Inocula (1,000, 5,000 and 10,000 nematodes per plant) reduced shoot dry weights of Ranger by 16, 27, and 40%, of Lahontan by 16, 32, and 40%, and of Nevada Synthetic XX (Nev Syn XX) by 18, 26, and 37%, respectively, at 26 ñ 2 C. Pratylenchus neglectus at 1,000 nematodes per plant reduced Ran...
متن کاملInteractions between Heterodera avenae and Pratylenchus neglectus on Wheat.
In a long-term field experiment, differential population densities of Heterodera avenae were produced by frequent cropping with resistant (cv. Panema) or susceptible (cv. Peniarth) oat. The two oat cultivars were equally good hosts of Pratylenchus neglectus in a glass house experiment with field soil. On wheat crops grown after oats in field experiments, P. neglectus population densities in roo...
متن کاملEffect of Field Crops on Population Densities of Pratylenchus neglectus and P. thornei in Southeastern Australia; Part 1: P. neglectus.
Eighty-one cultivars from 12 field crop species were assessed for suitability as hosts to the root lesion nematode, Pratylenchus neglectus, in two field trials. Host status was assessed on the basis of either final P. neglectus densities in soil or multiplication rate under different crops. Both techniques gave consistent results for crop and cultivar ranking, and it was therefore concluded tha...
متن کاملEffects of Temperature on Pratylenchus neglectus and on Its Pathogenicity to Barley.
In a petri-dish study, development of the nematode Pratylenchus neglectus was observed every 4 days, and stage-specific development times were estimated, using a parameter estimation algorithm for a distributed-delay population model. The lower threshold temperature for development of a population of P. neglectus was 7.75 C. Temperatures above 25 C were unfavorable for this population on barley...
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ژورنال
عنوان ژورنال: Plant Disease
سال: 2019
ISSN: 0191-2917,1943-7692
DOI: 10.1094/pdis-12-18-2234-re