Template-Type: ReDIF-Article 1.0 Author-Name: Z. Fuksová Author-Workplace-Name: Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: J. Száková Author-Workplace-Name: Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: P. Tlustoš Author-Workplace-Name: Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Title: Effects of co-cropping on bioaccumulation of trace elements in Thlaspi caerulescens and Salix dasyclados Abstract: Most phytoremediation technologies are based on the use of selected plant species cropped as in monoculture. Separated (monoculture) and combined (simultaneous) cropping of hyperaccumulator Thlaspi caerulescens and accumulator tree Salix dasyclados were tested in our experiment. We used moderately and highly contaminated soil. Extremely contaminated soil caused progressive mortality of willows planted separately. Combined cropping with T. caerulescens enabled willows to survive. Generally, we determined decreased bioaccumulation of As, Cd, and Pb in both tested species and Zn in willow plants. Combined cropping enhanced bioaccumulation of Zn in T. caerulescens shoots. The remediation efficiency of the individual species in the co-cropping system did not differ from those obtained in separate cropping mode. For As and Pb the negligible effectiveness of phytoextraction was confirmed for both separate and combined cropping of the tested plant species. Keywords: phytoextraction, cadmium, zinc, bioaccumulation, combined cropping Journal: Plant, Soil and Environment Pages: 461-467 Volume: 55 Issue: 11 Year: 2009 DOI: 10.17221/42/2009-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/42/2009-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-200911-0001.txt Handle: RePEc:caa:jnlpse:v:55:y:2009:i:11:id:42-2009-PSE Template-Type: ReDIF-Article 1.0 Author-Name: Y. Jiang Author-Workplace-Name: Instituteof Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China Author-Name: Y.G. Zhang Author-Workplace-Name: Instituteof Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China Author-Workplace-Name: College of Biological and Environmental Engineering, Shenyang University, Shenyang, P.R. China Author-Name: D. Zhou Author-Workplace-Name: Instituteof Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China Author-Workplace-Name: Graduate School of the Chinese Academy of Sciences, Beijing, P.R. China Author-Name: Y. Qin Author-Workplace-Name: Instituteof Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China Author-Workplace-Name: Graduate School of the Chinese Academy of Sciences, Beijing, P.R. China Author-Name: W.J. Liang Author-Workplace-Name: Instituteof Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China Title: Profile distribution of micronutrients in an aquic brown soil as affected by land use Abstract: To assess the land use effects on soil micronutrients, this study examined the profile variation and storage of DTPA- extractable iron, manganese, copper and zinc at the depth of 0-150 cm of an aquic brown soil under four land use patterns, i.e. paddy, maize, and fallow fields and woodland, over 14 years in an ecological experimental station of northeastern China. Results showed that land use effect, soil depth, and their interactions on micronutrients were significantly different, and they were decreased with soil depth. Micronutrient storages in woodland and fallow field were significantly greater than in paddy field (P < 0.05), and significantly or comparatively greater than in maize field. Micronutrients were positively correlated with soil organic carbon, but negatively with soil pH in profiles. Plant cycling and soil pH may contribute a lot in enhancing soil micronutrient levels in woodland and fallow field, while the lower organic matter content and higher soil pH may inhibit the micronutrient availability in paddy field. The study suggested that the profile distribution of soil micronutrients was mainly controlled by biological cycling, anthropogenic disturbance and leaching and strongly affected by land uses. Keywords: aquic brown soil, micronutrient, land use, profile distribution Journal: Plant, Soil and Environment Pages: 468-476 Volume: 55 Issue: 11 Year: 2009 DOI: 10.17221/57/2009-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/57/2009-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-200911-0002.txt Handle: RePEc:caa:jnlpse:v:55:y:2009:i:11:id:57-2009-PSE Template-Type: ReDIF-Article 1.0 Author-Name: R.M. Ali Author-Workplace-Name: Botany Department, Faculty of Science, Fayoum University, Fayoum, Egypt Author-Name: H.M. Abbas Author-Workplace-Name: Botany Department, Faculty of Science, Fayoum University, Fayoum, Egypt Author-Name: R.K. Kamal Author-Workplace-Name: Botany Department, Faculty of Science, Fayoum University, Fayoum, Egypt Title: The effects of treatment with polyamines on dry matter and some metabolites in salinity - stressed chamomile and sweet majoram seedlings Abstract: The seeds of two medicinal plants, namely Chamomilla recutita (Babong) and Origanum majorana (Bardaqoush) were subjected to germination in different NaCl concentrations, polyamines (putrescine, spermidine, spermine) and to combination of both. The results revealed that the growth alterations induced by NaCl were alleviated by various levels of polyamines. The organic solutes of both plant seedlings exhibited somewhat variable responses to various salinity levels or polyamines treatments and in combination of both treatments. Putrescine in Ch. recutita seedlings was more effective in alleviating the stress effects of salinization than spermidine and spermine, while in O. majorana seedlings spermidine was more effective. Generally, the degree of stimulation differed according to the type, concentration of the additive used and the type of the plant tested. Keywords: sodium chloride, antioxidants, polyamine-induced senescence, salt-induced oxidative stress, ionic toxicity, osmotic stress, signaling molecules, proline Journal: Plant, Soil and Environment Pages: 477-483 Volume: 55 Issue: 11 Year: 2009 DOI: 10.17221/63/2009-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/63/2009-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-200911-0003.txt Handle: RePEc:caa:jnlpse:v:55:y:2009:i:11:id:63-2009-PSE Template-Type: ReDIF-Article 1.0 Author-Name: M.Y. Wang Author-Workplace-Name: Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, P.R. China Author-Workplace-Name: Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, P.R. China Author-Name: L.H. Wu Author-Workplace-Name: Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, P.R. China Author-Workplace-Name: Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, P.R. China Author-Name: J. Zhang Author-Workplace-Name: School of Environmental Science and Technology, Zhejiang Forestry University, Lin'an, Title: Impacts of root sulfate deprivation on growth and elements concentration of globe amaranth (Gomphrena globosa L.) under hydroponic condition Abstract: Sulfur (S) regarded as the fourth key element is mainly taken by the plant roots. However, some plants can also absorb atmospheric sulfides, which may be of great importance for ameliorating the environment and for farming as a green organic S fertilizer used to balance insufficient soil S content for intensive cultivation in China; H2S and mainly SO2 are emitted to air as a result of the rapid industrialized and economic development. Globe amaranth (Gomphrena globosa L.) might be one of the plants that can use atmospheric sulfides for its growth. Therefore the effects of sulfate deprivation from root on its growth, S status and other elements concentration under hydroponic culture were explored firstly. Based on measurements of plant growth, biomass, nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), S, iron (Fe), manganese (Mn), copper (Cu), zinc (Zn), boron (B), and molybdenum (Mo) concentration, the results showed that S concentration in flower, shoot and root of plant without root sulfate supplied was increased with plant growth and development, symptoms of S deficiency disappeared and other elements concentration in plant tended to be nearly the same as the root sulfate-supplied plants. The interesting results might imply that globe amaranth may be able to live on the atmospheric sulfides as sulfur source. Keywords: globe amaranth (Gomphrena globosa L.), atmospheric sulfur, growth condition, biomass, elements concentration Journal: Plant, Soil and Environment Pages: 484-493 Volume: 55 Issue: 11 Year: 2009 DOI: 10.17221/70/2009-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/70/2009-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-200911-0004.txt Handle: RePEc:caa:jnlpse:v:55:y:2009:i:11:id:70-2009-PSE Template-Type: ReDIF-Article 1.0 Author-Name: A. Yazar Author-Workplace-Name: Irrigation and Agricultural Structures Department, Çukurova University, Adana, Turkey Author-Name: F. Gökçel Author-Workplace-Name: Irrigation and Agricultural Structures Department, Çukurova University, Adana, Turkey Author-Name: M.S. Sezen Author-Workplace-Name: Water Management Department, Soil and Water Resources Research Institute, Title: Corn yield response to partial rootzone drying and deficit irrigation strategies applied with drip system Abstract: This paper evaluates the effect of partial root zone drying (PRD) and deficit irrigation (DI) strategies on yield and water use efficiency of the drip-irrigated corn on clay soils under the Mediterranean climatic conditions in Southern Turkey. Four deficit (PRD-100; PRD-75; PRD-50; and DI-50) and one full irrigation (FI) strategies based on cumulative evaporation (E pan) from class A pan at 7-day interval were studied. Full (FI) and deficit irrigation (DI-50) treatments received 100 and 50% of Epan, respectively. PRD-100, PRD-75 and PRD-50 received 100, 75 and 50% Epan value, respectively. The highest water use was observed in FI as 677 mm, the lowest was found in PRD-50 as 375 mm. PRD-100 and DI-50 resulted in similar water use (438 and 445 mm). The maximum grain yield was obtained from the FI as 10.40 t/ha, while DI-50 and PRD-100 resulted in similar grain yields of 7.72 and 7.74 t/ha, respectively. There was a significant difference among the treatments with respect to grain yields (P < 0.01). The highest water use efficiency (WUE) was found in PRD-100 as 1.77 kg/m3, and the lowest one was found in FI as 1.54 kg/m3. Keywords: partial root zone drying, deficit irrigation, water use efficiency, corn, drip irrigation, water scarcity Journal: Plant, Soil and Environment Pages: 494-503 Volume: 55 Issue: 11 Year: 2009 DOI: 10.17221/96/2009-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/96/2009-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-200911-0005.txt Handle: RePEc:caa:jnlpse:v:55:y:2009:i:11:id:96-2009-PSE Template-Type: ReDIF-Article 1.0 Author-Name: T.C. de Souza Author-Workplace-Name: Departamento de Biologia, Setor de Fisiologia Vegetal, Campus Universitário, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil Author-Name: E.M. de Castro Author-Workplace-Name: Departamento de Biologia, Setor de Fisiologia Vegetal, Campus Universitário, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil Author-Name: F.J. Pereira Author-Workplace-Name: Departamento de Biologia, Setor de Fisiologia Vegetal, Campus Universitário, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil Author-Name: S.N. Parentoni Author-Workplace-Name: Centro Nacional de Pesquisa de Milho e Sorgo, Sete Lagoas, Minas Gerais, Brazil Author-Name: P.C. Magalhăes Author-Workplace-Name: Centro Nacional de Pesquisa de Milho e Sorgo, Sete Lagoas, Minas Gerais, Brazil Title: Morpho-anatomical characterization of root in recurrent selection cycles for flood tolerance of maize (Zea mays L.) Abstract: Changes in root anatomical structures at successive cycles of selection (cycle 1 to cycle 18, alternating) were observed in the study of maize (Zea mays L. cv. Saracura-BRS 4154) capable to survive and produce in temporarily flooded soils; this cultivars was developed by the Maize and Sorghum National Research Center through stratified phenotypic recurrent selection for cultivation wetland soils. Field trial was carried out and flooding of the soil was initiated at the six-leaf stage; the soil was flooded with water (20-cm deep) three times per week. Root sample was collected, fixed, and selected for observation in photon microscope. A gradual increase in the number of aerenchyma, the proportion of vascular cylinder, smaller metaxylem, and phloem and epidermis width, and a decrease in exodermis and cortex were observed in successive selection cycles. Such phenotypic changes impart the flood tolerance ability to this maize cultivar. Keywords: soil flooding, Zea mays L., hypoxia, root anatomy Journal: Plant, Soil and Environment Pages: 504-510 Volume: 55 Issue: 11 Year: 2009 DOI: 10.17221/110/2009-PSE File-URL: http://pse.agriculturejournals.cz/doi/10.17221/110/2009-PSE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pse-200911-0006.txt Handle: RePEc:caa:jnlpse:v:55:y:2009:i:11:id:110-2009-PSE