First Report of Heterodera zeae on Maize in China
نویسندگان
چکیده
منابع مشابه
Characterization of Heterodera zeae Populations from Portugal.
Three populations of the corn cyst nematode Heterodera zeae, one found in the rhizosphere of a fig tree and two infecting corn, were studied using the morphology and morphometry of cysts and second-stage juveniles, and compared with other populations. The intrapopulation and intraspecific variability are discussed. A simple and improved technique to prepare vulval cones for SEM is described. Th...
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15 صفحه اولFactors Influencing Emergence of Juveniles from Cysts of Heterodera zeae.
Several factors were studied to determine their effects on hatch and emergence of second-stage juveniles (J2) from cysts of Heterodera zeae. The optimum temperature for emergence of J2 from cysts of H. zeae was 30 C. No juveniles emerged from cysts at 10 or 40 C. Immersion of cysts in 4 mM zinc chloride solution stimulated 10% greater emergence of J2 than occurred in tap water controls during 2...
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rice sheath spot agent was first reported from california, arkansas and louisiana as trichoderma sp. (tullis, 1934). then ryker & gooch introduced r. oryzae as the correct agent. waitea circinata has wag-o anastomosis group related to r. oryzae.the funguswas not reported from iran. a rhizoctonia isolate was isolated from corn sheath bearing sheath blight symptoms. after fourteen days the colon...
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Summer maize (Zea mays L.) is one of the dominant crops in the North China Plain (NCP). Its growth is greatly influenced by the spatial-temporal variation of climatic variables, especially solar radiation, temperature and rainfall. The WOFOST (version 7.1) model was applied to evaluate the impact of climatic variability on summer maize yields using historical meteorological data from 1961 to 20...
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ژورنال
عنوان ژورنال: Plant Disease
سال: 2017
ISSN: 0191-2917,1943-7692
DOI: 10.1094/pdis-01-17-0146-pdn