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Study and determined the best rotation on wheat in tropical dry conditions.
2006
Naraki, Faraj Ol-Lah | Hosseini, Karim | Safi Khani, Mansur | Musavi, Yazdan | Rad, Ardeshir
Planting cereals continuously in warm dry land areas decrease soil fertility and leading to decreased grain yield .in addition, continues wheat-wheat increase pests, disease and weed growth leading to reduced wheat grain yield. In order to increase the yield, improve yield stability, and prevention of soil degradation in dry land area research for determining the best farming system and introducing the most suitable crops in rotation with wheat .This study was conducted in gachsaran agricultural research station for 8 consecutive years from 1374 up to 1382 wheat growing season. Study were consisted of 10 treatments including wheat, barley, fallow, chick pea, alfalfa, vetch, sunflower, safflower and rape seed which planted in a two years rotation with wheat in RCB design with 3 replications . combined analysis of variance were performed on wheat grain yield and economical evaluations were done and the effects of each treatment on soil fertility were evaluated .The result showed that there was significant differences of grain yield of wheat between different treatments .Economical evaluations from the net input point of view showed that all treatments had significant increasing comparing with wheat –wheat and wheat-fallow farming system. For there more some treatments showed some positive effects on soil fertility including increasing in organic matter, nitrogen and potassium amount.
Show more [+] Less [-]Chemical ozone loss in the Arctic winter 2002/2003 determined with Match Full text
2006
Streibel, M. | Rex, Markus | von der Gathen, Peter | Lehmann, Ralph | Harris, N. R. P. | Braathen, G. O. | Reimer, E. | Deckelmann, Holger | Chipperfield, M. | Millard, G. | Allaart, M. | Andersen, S. B. | Claude, H. | Davies, J. | De Backer, H. | Dier, H. | Dorokhov, V. | Fast, H. | Gerding, M. | Kyrö, E. | Litynska, Z. | Moore, D. | Moran, E. | Nagai, T. | Nakane, H. | Parrondo, C. | Skrivankova, P. | Stübi, R. | Vaughan, G. | Viatte, P. | Yushkov, V.
Protein digestibility of tannin-containing forages in the rumen and the abomasum as determined in vitro Full text
2006
Hess, H.D. | Cortés, J.E. | Carulla, Juan E. | Pabón, ML | Tiemann, Tassilo T. | Lascano Aguilar, Carlos Eduardo | Kreuzer, M.
Protein digestibility of tannin-containing forages in the rumen and the abomasum as determined in vitro
2006
Hess, H.D. | Cortés, J.E. | Carulla, Juan E. | Pabón, M.L. | Tiemann, Tassilo T. | Lascano Aguilar, Carlos Eduardo | Kreuzer, M.
Protein digestibility of tannin-containing forages in the rumen and the abomasum as determined in vitro [on line] [poster] Full text
2006
Hess, Hans Dieter | Cortés, Javier Eduardo | Carulla, Juan Evangelista | Pabón, Martha Lucía | Tiemann, Tassilo T. | Lascano, Carlos E. | Kreuzer, Michael
The FRAME alternatives laboratory database. 1. In vitro basal cytotoxicity determined by the Kenacid blue total protein assay
2006
Clothier, R. | Gottschalg, E. | Casati, S. | Balls, M.
A database of over 280 chemicals has been compiled by using a mouse 3T3-L1 fibroblast-like cell line in exponential growth, exposed to chemicals for 72 hours in a 96-well tissue culture plate format, and determining cell number via the Kenacid blue (KB) assay for total protein. Ranking the chemicals according to their basal cytotoxicity, expressed as the concentration (mM) that inhibits increase in total cellular protein over 72 hours by 50% (the ID50 value) shows a wide range of ID50 values, from 0.00003 mM to 10,096 mM. This information includes the results for MEIC chemicals 1-50, and we have now added basal cytotoxicity data for 23 of the next 25 MEIC chemicals. When the neutral red uptake (NRU) assay was performed with the same cell cultures, before the KB assay, very similar indications of basal cytotoxicity were obtained. Comparisons between the results with 3T3-L1 cells and with a human fibroblast-like cell line, BCL-D1 showed a significant difference in order of magnitude of the ID50 value for only 5 of 52 chemicals. However, there was a difference in ID50 value of more than one order of magnitude for 8 of 24 chemicals tested with an undifferentiated teratocarcinoma cell line, F9.
Show more [+] Less [-]Ontogenetic shifts in the distribution and reproductive patterns of Australian anchovy (Engraulis australis) determined by otolith microstructure analysis Full text
2006
Dimmlich, W. | Ward, T.
<jats:p> Upwelling systems can provide ideal conditions for survival and growth of larval fishes. However, these unstable environments are highly dispersive and mortalities can be high. Anchovies (Engraulis spp.) utilise a range of behavioural strategies to increase egg and larval survival. Ontogenetic shifts in distribution have been proposed for Australian anchovy (Engraulis australis), but no supporting otolith-based age studies have been published to date. The present study used otolith increment counts to age larval, juvenile and adult Australian anchovy, which spawn throughout South Australian gulf and shelf waters. Only fish up to 1 year of age occurred in the northern Spencer Gulf, where eggs and larvae in high densities are retained in a nursery area favourable to anchovies. The southern gulf area was inhabited by 1, 2 and 3 year olds. Older anchovy were found in offshore shelf waters, where upwelling occurs and larval survivorship may be high. We hypothesise that Australian anchovy move offshore with age to utilise the wide range of environments that provide suitable spawning and nursery areas for this species. </jats:p>
Show more [+] Less [-]Variations in the chemical composition within pine (Pinus sylvestris) trunks determined by diffuse reflectance infrared spectroscopy and chemometrics Full text
2006
Toivanen, Timo-Jaakko | Alén, Raimo
The feasibility of using DRIFT (diffuse reflectance infrared Fourier transform) spectroscopy combined with a multivariate analysis method (a PLS (projection to latent structures), regression) for predicting the distribution of the main organic constituents (cellulose, glucomannan, xylan, lignin, and extractives) within the Scots pine (Pinus sylvestris) stemwood was examined. PLS calibrations were carried out to establish a mathematical correlation between the data sets of conventional (“wet-chemistry-based”) wood analysis and the DRIFT spectra of the corresponding wood samples. Based on this approach, different surface maps on variations in the content of the main organic constituents within the stemwood matrix were shown.
Show more [+] Less [-]The distribution and incidence of potato mop-top virus in Finland as determined in 1987 and on the variation of disease symptoms in infected potatoes Full text
1989 | 2006 | 1994
Kurppa, Aarne | Maatalouden tutkimuskeskus (MTTK) / MTT | Maatalouden tutkimuskeskus | MTTK
Sarja Kasvitaudit n:o 107 | V | ok | Perunan mop-top-viruksen esiintyminen Suomessa ja sen aiheuttamaan tautiin liittyvät oireet
Show more [+] Less [-]Marked individual variability in the levels of trimethylselenonium ion in human urine determined by HPLC/ICPMS and HPLC/vapor generation/ICPMS Full text
2006
Kuehnelt, Doris | Juresa, Dijana | Kienzl, Norbert | Francesconi, Kevin A.
Selenium species were determined using HPLC/ICPMS and HPLC/vapor generation/ICPMS in the urine from seven human volunteers investigated at background selenium concentrations and at slightly elevated concentrations after ingestion of 200 μg Se as a selenite supplement. Trimethylselenonium ion (TMSe) was present, together with selenosugars, in the urine samples, a result that dispels recent doubts about its possible previous misidentification with a cationic selenosugar. Although TMSe was present as only a trace metabolite in urine from five of the seven volunteers (0.02–0.28 μg Se/L, equivalent to 1–5% of the sum of selenosugars and TMSe), it was a significant metabolite (up to 4.6 μg Se/L, 22%) in one volunteer, and it was the major identified metabolite (up to 15 μg Se/L, 53%) in another volunteer. This marked individual variability in the formation of TMSe was maintained in a duplicate investigation of urine from the same seven volunteers.
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