Abstract The article presents data from the study of vegetation dynamics in Chornobyl Exclusion Zone 30 years after nuclear disaster and resettlement its local people. 1993 prognostic on further development grass forest community groups this area was only partially correct. new prognosis for demutation successions reflects deviations linear with a possible horizontal "shift", depending climatic...

Twenty-four weeds commonly found in commercial potato fields in Quebec were evaluated for their host suitability to the root-lesion nematode, Pratylenchus penetrans, under greenhouse conditions. Brown mustard (Brassica juncea) and rye (Secale cereale) were included as susceptible controls and forage pearl millet hyb. CFPM 101 (Pennisetum glaucum) as a poor host. Pratylenchus penetrans multiplie...

The effects of environmental conditions on population trends of plant-parasitic nematodes were studied in experimental plots of five wheatgrasses in the western Utah desert. In a 3-year (1984-86) field study, soil water and temperature affected the population trends of the ectoparasites, Tylenchorhynchus acutoides and Xiphinema americanum, and the migratory endoparasite, Pratylenchus neglectus,...

Five wild plant species belonging to different families (Chenopodium album, Plantago major, Elytrigia elongata, Filipendula ulmaria and Nigella sativa) widely spread in Russian Federation and the former USSR were evaluated for their ability to inhibit growth of two important human food-borne pathogens (Escherichia coli O157:H7 and Listeria monocytogenes strain EGD-e) and eight plant pathogens (...

can be harvested with only a slight depression in yields (Redmon et al., 1995). Either option leaves a forage Hard red winter wheat (Triticum aestivum L.) is a major cooldeficit period until warm-season perennial grasses are season forage that couples with warm-season perennials to provide livestock feed in the Southern Plains. Productivity and quality of available for grazing in mid summer. wh...

cultivar Paiute, which originated from a single plant introduction (PI-109072) (Alderson and Sharp, 1994), Within the Great Basin, availability of irrigation water throughout very little breeding has been done to develop improved the growing season is the limiting factor in the development of improved pastures. The choice of species and their water requirements cultivars of cool-season perennia...

A combination of meiotic pairing analysis and in situ hybridization (genomic in situ hybridization [GISH], multicolor GISH [mcGISH] and fluorescence in situ hybridization [FISH]) of five Triticum aestivum (Linnaeus, 1753) - Elytrigia elongata (Podpěra, 1902) (2n = 10x = 70) amphiploids was employed to investigate the genomic constitution and relationships between wheat and alien chromosomes. GI...