Susceptibility of Soybean Cultivars to Pratylenchus scribneri
نویسندگان
چکیده
منابع مشابه
Pathogenic Effects of Pratylenchus scribneri
operated applicator and incorporated Waudo, S. W., and Norton, D. C. 1986. Pathogenic effects of Pratylenchus scribneri in maize into the top 4 cm of soil. Soil samples inbreds and related cultivars. Plant Disease 70:636-638. were taken from the top 25 cm of soil with a 2-cm-diameter soil probe at planting Maize inbreds C123Ht, C103, and Mol7Ht inoculated with 8,500 ± 500 Pratylenchus scribneri...
متن کاملRelative susceptibility of selected cultivars, of potato to Pratylenchus penetrans.
Pratylenchus penetrans suppressed the tuber yields of potato cultivars 'Katahdin', 'Kennebec', and 'Superior', but did not affect yields of 'Russet Burbank'. In comparison with noninfested controls, all initial nematode densities (P(i)) of P. penetrans (P(i) = 38, 81, 164, 211/ 100 cm(3) of soil) suppressed yields of Superior; a moderate P(i) (81/100 cm(3) soil) suppressed yields of Kennebec; a...
متن کاملDispersion and Distribution of Pratylenchus scribneri and Hoplolaimus galeatus in Soybean Fields.
Examination of dispersional characteristics of Pratylenchus scribneri and Hoplolaimus galeatus indicated that there were patches within soybean fields in which both survival and reproduction wexe enhanced in spite of apparent homogeneity of soil type and topography. Treatment with carbofuran reduced the patchiness (or increased the dispersion) for H. galeatus while it had the opposite effect fo...
متن کاملField Interrelationships among Heterodera glycines, Pratylenchus scribneri, and Three Other Nematode Species Associated with Soybean.
Field experiments were conducted in 1982 and 1983 to assess interactions between Heterodera glycines and Pratylenchus scribneri on soybean in southern Illinois. Soybean cyst nematode susceptible cultivar Williams 79 and resistant cultivar Fayette were treated or not treated with aldicarb 15G. Initial population densities were 35 H. glycines cysts containing eggs, 100 P. scribneri, 30 Helicotyle...
متن کاملDistribution of Pratylenchus scribneri between Root and Soil Habitats.
The abundance of Pratylenchus scribneri in soil and root habitats was compared in potato and corn plots during 1986-88. Nematodes were extracted from 100-cm(3) soil samples and the roots contained within the samples. The percentage of the population recovered from soil, similar among years and crops, averaged ca. 50% at the beginning and end of the growing season and ca. 20% from early to late ...
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ژورنال
عنوان ژورنال: The Journal of Agriculture of the University of Puerto Rico
سال: 1969
ISSN: 2308-1759,0041-994X
DOI: 10.46429/jaupr.v63i2.10267