The effect of cultivar, environment, and their interactions on soft red winter wheat (Triticum aestivum L.) quality has never been determinated in the southeastern United States. In this study, 22 soft wheat cultivars and 2 hard wheat cultivars were grown in 12 southeastern environments in a randomized complete block design having two replications. Flour yield, whole grain protein percent, particle size index, and alkaline water retention capacity were measured. Highly significant differences were detected among environments and cultivars for each of the quality variables. The cultivar ✕ environment interaction was highly significant for all variables. Cultivars with good soft wheat quality and good stability were identified. The cultivar means from an environment were generally highly significantly correlated with the regional cultivar means indicating that for preliminary quality evaluations, data from one environment is sufficient for ranking cultivars.

These results suggest that 5-HT(2C) receptors play an inhibitory role in regulating reward-related behaviour while 5-HT(2C) receptor activation in the NAc shell did not appear to influence VTA ICSS behaviour under the present experimental conditions.

SUMMARY Organic acids were determined in juices and peels of mature fruits of Washington Navel and Valencia oranges, grapefruit, lemon, tangerine, and Palestine sweet lime. Juices and peels were freeze‐dried, and organic acids were determined by silicic‐acid chromatography. Cation‐exchange resin in the hydrogen form was used for acidification of peel prior to extraction of acids with methanol. Citric acid predominated in all juices except that of the sweet lime (in which citrate level was so low that malate exceeded it). Malate occurred in all juices in low but measurable concentrations. Oxalate predominated in the peels, but in the lime, malonate appeared in equivalent amounts. Malonate appeared in all peels in measurable amounts, and in some peels was exceeded only by oxalate. Malic and citric acids were also determined in each peel. At least 15 peaks appeared with each peel, and paper chromatography of the effluents indicated the presence of more than one component in several peaks.

The polymorphism of phenobarbitone has been investigated using infrared spectroscopy, X-ray diffraction and differential scanning calorimetry. Eight crystalline modifications have been isolated and shown to have distinguishable infrared absorption spectra and X-ray powder diffraction patterns. Other forms were found to be present in mixed crystals and molecular compounds obtained from mixtures of phenobarbitone with other barbiturates. Differential thermograms of three forms of thialbarbitone are also given.