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Eleven grain legumes were analyzed for amino acids (AA), AA scores and essential AA indexes (EAAI). Nitrogen-to-protein (N:P) factors were determined from these data. Concentrations of AA per gram of nitrogen were relatively constant among species with the exception of the AA arginine, methionine, tryptophan and cystine which had coefficients of variation of 23–30%. On average, arginine, leucine, lysine, aspartic acid and glutamic acid accounted for 50% of the total of all AA. These grain legumes met adult human requirements for essential AA except for methionine and cystine which were deficient in all species. This resulted in an average AA score and EAAI of 56 and 89, respectively. The N:P factor was 5.6 for the 11 species but this value was 5.0 if corrected for nonprotein nitrogen.

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Tetracan is the first tetraploid cultivar of Russian wild ryegrass registered for sale in Canada. The large seed, large heads and wide leaves are visual characters that distinguish Tetracan from diploid cultivars of Russian wild ryegrass. Tetracan is superior to the diploid cultivar Swift in establishment vigor as evidenced by excellent ability to emerge from deep seedings. It is equal to Swift in dry matter and seed yield.Key words: Psathyrostachys juncea, cultivar description, wild ryegrass (Russian, tetraploid)

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