Allelopathy is the direct or indirect harmful effect which one plant produces on another through the production of chemical compounds that escape into the environment. In the presence paper allelopathic relationships were determined in three cereals wheat (Triticum aestivum L.), barley (Hordeum vulgare L.), oat (Avena sativa L.) and vegetable crops spinach (Spinacia oleracea L.), radish (Raphan...

In order to study the variation of nitrate reductase (NR) genes among grass species, gene number, intron size and number, and the heme-hinge fragment sequence of 25 grass species were compared. Genomic DNA cut with six restriction enzymes and hybridized with the barley NAD(P)H and NADH NR gene probes revealed a single NAD(P)H NR gene copy and two or more NADH NR gene copies per haploid genome i...

Recent research on the wheat curl mite species complex has revealed extensive genetic diversity that has distinguished several genetic lineages infesting bread wheat (Triticum aestivum L.) and other cereals worldwide. Turkey is the historical region of wheat and barley (Hordeum vulgare L.) domestication and diversification. The close relationship between these grasses and the wheat curl mite pr...

glutathione transferases are multifunctional proteins involved in several diverse intracellular events such as primary and secondary metabolisms, signaling and stress metabolism. these enzymes have been subdivided into eight classes in plants. the phi class, being plant specific, is the most represented. in the present study, based on the sequences available at genbank, different primers were d...

An analysis of the lipids in isolated barley (Hordeum vulgare L.) aleurone layers after 12 hours incubation in the presence or absence of gibberellic acid showed no quantitative or qualitative changes. Longer incubation periods resulted in some lipid degradation which was greater in the presence of 1 mum gibberellic acid.Glycerolipid synthesis was measured in isolated barley aleurone layers dur...

Barley (Hordeum vulgare cv Prior) leaves converted l-U-(14)C-arginine to labeled proline. Accumulation of radioactivity in proline was greater in wilted leaves, but only after 9 hours of incubation. As the increase in free proline was detectable after only 3 to 6 hours, it is likely that the observed stimulation of proline labeling represents a result rather than a cause of proline accumulation...

A barley (Hordeum vulgare L.) cDNA, PM19, encoding a putative plasma membrane protein was isolated through differential screening of a dormant wild oat embryo library. PM19 is expressed in barley embryos from mid-embryogenesis up to maturity. PM19 mRNA levels decline upon germination, whereas dormant embryos retained high levels of message for up to 72 h of imbibition. PM19 mRNA levels also rem...

Corn (Zea mays, L.), bean (Phaseolus vulgaris L.), barley (Hordeum vulgare L.), spinach (Spinacia oleracea L.), and sugarbeet (Beta vulgaris L.) grown under iron deficiency, and Potamogeton pectinatus L, and Potamogeton nodosus Poir. grown under oxygen deficiency, contained less chlorophyll than the controls, but accumulated Mg-protoporphyrin IX and/or Mg-protoporphyrin IX monomethyl ester. No ...

ABSTRACT. Barley (Hordeum vulgare L.) is one of the most widely cultivated stable food crops in world. grain samples were collected from four selected areas (Bahir Dar, Bure, Finote Selam and Debre Markos) Ethiopia types processed (kolo, porridge, bread injera) prepared it. The levels essential non-essential metals barley grains its determined by microwave plasma-atomic emission spectrometry af...

To determine the optimal ploughing depth and to make tillage simpler and less costly, but also taking account of edaphic and climatic conditions as well as biological and agrotechnical requirements of crops grown, long-term investigations (1994-2009) have been carried out on Stagnic Luvisol of sloping terrains in central Croatia near Daruvar. Th e paper presents the results relating to plant de...