Plant, Soil and Environment, 2009 (vol. 55), issue 11
Effects of co-cropping on bioaccumulation of trace elements in Thlaspi caerulescens and Salix dasyclados
Z. Fuksová, J. Száková, P. Tlustoš
Plant Soil Environ., 2009, 55(11):461-467 | DOI: 10.17221/42/2009-PSE 
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...
Profile distribution of micronutrients in an aquic brown soil as affected by land use
Y. Jiang, Y.G. Zhang, D. Zhou, Y. Qin, W.J. Liang
Plant Soil Environ., 2009, 55(11):468-476 | DOI: 10.17221/57/2009-PSE
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...
The effects of treatment with polyamines on dry matter and some metabolites in salinity - stressed chamomile and sweet majoram seedlings
R.M. Ali, H.M. Abbas, R.K. Kamal
Plant Soil Environ., 2009, 55(11):477-483 | DOI: 10.17221/63/2009-PSE
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...
Impacts of root sulfate deprivation on growth and elements concentration of globe amaranth (Gomphrena globosa L.) under hydroponic condition
M.Y. Wang, L.H. Wu, J. Zhang
Plant Soil Environ., 2009, 55(11):484-493 | DOI: 10.17221/70/2009-PSE
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...
Corn yield response to partial rootzone drying and deficit irrigation strategies applied with drip system
A. Yazar, F. Gökçel, M.S. Sezen
Plant Soil Environ., 2009, 55(11):494-503 | DOI: 10.17221/96/2009-PSE
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...
Morpho-anatomical characterization of root in recurrent selection cycles for flood tolerance of maize (Zea mays L.)
T.C. de Souza, E.M. de Castro, F.J. Pereira, S.N. Parentoni, P.C. Magalhăes
Plant Soil Environ., 2009, 55(11):504-510 | DOI: 10.17221/110/2009-PSE
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...