Study of 14 living population samples of Biscutella sempervirens from Spain revealed considerable variability in vegetative characters. Two varieties, one of which is new, are recognised. Experimental cultivation showed ...

One independent (physical) and two partially independent (biophysical) indices were compared with a dependent (biological) index for two sets of yield trials in maize (Zea Mays L.). The object was to investigate whether ...

S1 families from three tropical maize (Zea mays L.) populations; FARZ 27, FARZ 34 and TzSR-W-l, were used to study genetic variation for emergence percentage (E%); emergence index (EI), emergence rate index (ERI) and yield. ...

Heparin, an anticoagulant polysaccharide, inhibits thrombin activity which plays the most important role in the blood clotting process. It is known to accelerate neutralization of thrombin activity instantaneously in the ...

A method is described for the the determination of cadmium in foods by atomic absorption spectrometry with direct slurry introduction into an electrothermal atomiser. Oxygen infusion facilitates in situ ashing of samples ...

Soil samples were collected from four different oil-contaminated sites in Lagos, Nigeria, Enrichment of soil samples in a mineral salts medium containing SAE 40 motor oil as carbon source resulted in the isolation of eleven ...

Fermentation of cassava tubers was accompanied by a gradual decrease in pH, increased amylase activity in the steep liquor, and increased microbial load and lactic acid concentration. Amylase-producing bacterial strains ...

Eight new direct chromogenic lysine substrates, namely N α-benzyloxycarbonyl-l-lysine 3, 5-dinitroanilide hydrochloride (l-ZLDA· Hcl), N α-benzyloxycarbonyl-l-lysine 3-nitroanilide hydrochloride (l-ZLNA· HCl), N ...

result of an investigation into the possible taxonomic value of comparative petiole anatomy in 46 taxa of the genus Biscutella (Cruciferae) is presented. The shape of the petioles varies from dorsiventrally flattened to ...

The production of cultivars that are highly yielding and stable in performance over a wide range of environments is a major objective in the breeding of oil palm (Elaeis sp.). Progenies resulting from nine crosses of oil ...

Regiospecific synthesis of 4H‐3,3a‐dihydrothiazolo[4,3‐b]quinazolines and 7‐methyl‐4H‐3,3a‐dihydrothiazolo[4,3‐b]quinazolines IVa and IVb is described. The N‐substituted thiazolidinecarboxylic acids Ia and Ib were converted ...

Regiospecific synthesis of 4H‐3,3a‐dihydrothiazolo[4,3‐b]quinazolines and 7‐methyl‐4H‐3,3a‐dihydrothiazolo[4,3‐b]quinazolines IVa and IVb is described. The N‐substituted thiazolidinecarboxylic acids Ia and Ib were converted ...

Cassava residue, the material obtained after aqueous extraction of starch from pulverized cassava tubers, was converted to the carboxymethyl derivative of various acid capacities. The acid capacity in 1M KCl was in the ...

Hydrophobic groups have been incorporated into cassava cellulose to obtain benzyl, phenyl and octyl derivatives. These have been shown to bind serum proteins reversibly. The benzyl and octyl derivatives were used to ...

Boerhavia species are widely used in African traditional medicine. Four species of the genus occurring in Nigeria have been investigated morphologically and phytochemically. Epidermal cells are either polygonal in shape ...

The development of a model gut system has enabled the study of cadmium bioavailability to be carried out. The use of a biological membrane indicates that although soluble forms of cadmium may exist in the gut, only ...

Breeders usually obtain information on a large number of traits in their breeding and selection programmes. However, since some or many of these traits could be related, it is desirable to reduce the number being handled ...

Antigenic phenol phase S-type lipopolysaccharides (LPS) isolated from Brucella abortus (B. abortus) strains 7 and Mustapha were observed to have 13C n.m.r. spectra which were almost identical to the one reported for the ...

The lipo-oligosaccharide (LOS) from Campylobacter coli Labet 227 was extracted by aqueous phenol. After delipidation and gel chromatography, two oligosaccharides were isolated. The higher molecular weight material OS (I) ...

Three Deli dura x tenera crosses and five dura x tenera crosses plus a standard cross as check were evaluated for 20 years and the yield data were used to determine the optimum time for yield evaluation and selection in ...