“…Alkaloid content is too high for considering the sweet lupines suited for human consumption (note in this connection their high pro-tein content and the superior digestibility of lupine protein). However, KLAWITTER andSENGBUSCH (1943) (v. also HACKBARTH andTROLL, 1959, p. 20) have attained some improvement in this respect by means of gene recombination. The "double recessive yellow Muncheberger strain" contains both the recessive genes dulcis and liber (together with invulnerabilis, niveus and w for soft seed-coats) .…”