Archive image from page 173 of Cyclopedia of farm crops . Cyclopedia of farm crops : a popular survey of crops and crop-making methods in the United States and Canada cyclopediaoffarm00bailuoft Year: 1922, c1907 Fig. 224. English rye-grass. ored than Kentucky blue-g:rass. Individual seeds are very similar to the latter, hence this seed is used successfully as an adulterant. The apex of the seed is less sharply pointed and often flares somewhat, becoming rounded (c). The seed usually is widest a little above the middle (a). The intermediate nerves (b) are very indistinct. The presence of Cana
Archive image from page 173 of Cyclopedia of farm crops . Cyclopedia of farm crops : a popular survey of crops and crop-making methods in the United States and Canada cyclopediaoffarm00bailuoft Year: 1922, c1907 Fig. 224. English rye-grass. ored than Kentucky blue-g:rass. Individual seeds are very similar to the latter, hence this seed is used successfully as an adulterant. The apex of the seed is less sharply pointed and often flares somewhat, becoming rounded (c). The seed usually is widest a little above the middle (a). The intermediate nerves (b) are very indistinct. The presence of Canada blue-grass seed as an adulterant can be de- termined only by the use of a lens. Perenni.\l or English rye-grass {Lolium pcr- enne). Fig. 224. The seed is so similar to that of meadow fescue that it is distinguished with diffi- culty. The distinguishing mark lies in the rachilla segment (a) which is flattened externally and grad- ually broadens toward the apex, which is scarcely expanded. Italian rye-grass (Lolhim ItaUcnm). Fig. 225. The seed is similar to that of perennial rye-gasss, with the exception that most of the seeds bear a slender awn at the apex. The rachilla segment is some- what intermediate in form between that of perennial rye-grass and that of meadow fescue, but usually dis- tinguishes the rye- grass from the fescue. Both kinds of rye-grass seed are used as adulterants of orchard- grass seed. Their flatter form and the awn of Italian rye-grass readily distinguish them from the angular, curved seeds of orchard-grass. GROWING SEED CROPS By IF. W. Tracy The requisities for growing farm seed of the best quality are, (1) a field free of weed seeds or plants; (2) the use of pure stock seed of desira- ble strain ; (3) so to harvest the crop as to secure a clean, bright sample of high vitality; (4) the careful use of machines for threshing and cleaning the seed. The way the machines are used is quite as important as their structure. Often one person will secure a poor
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