. The cereals in America. 342 THE CEREALS IN AMERICA to some extent by both man and beast in the early colonies of this country. Practicums. 475. The Plant.—Each student should be given a printed or typewritten sheet, as indicated below, and requested to describe two or more types or varieties, as indicated. The study may be made in the field, or from fresh or dried speci- mens in the laboratory. Height of culm: average of ten culms to tip of upper beard . . Vigor of plant: strong; medium; weak. Diameter below spike : average of ten culms . . Wall of culm: thick; medium; thin. Color of culm: l
. The cereals in America. 342 THE CEREALS IN AMERICA to some extent by both man and beast in the early colonies of this country. Practicums. 475. The Plant.—Each student should be given a printed or typewritten sheet, as indicated below, and requested to describe two or more types or varieties, as indicated. The study may be made in the field, or from fresh or dried speci- mens in the laboratory. Height of culm: average of ten culms to tip of upper beard . . Vigor of plant: strong; medium; weak. Diameter below spike : average of ten culms . . Wall of culm: thick; medium; thin. Color of culm: light yellow; yellow; bronze. Foliage: scanty; medium; abundant. Rust: leaves, per cent . .; culms, per cent . . Smut: per cent . . Spike: erect; leaning; nodding. 10. Spike: two-rowed; four-rowed; six-rowed. Length: average of ten spikes from lower joint of rachis to tip of flowering glume (not count- ing beard) of upper spikelet . . Number of joints of the rachis: average ten . . Number of spikelets at joint of rachis . . Number of grains per spike: average ten spikes . . Weight of middle and lateral grains (if six- rowed) : average ten grains: middle . .; lateral . .. Grobecker's grain tester. Move handle of knife, b, to the right, thus opening the receiver, c-a\ put the barley to be tested into cup, a, when, by slightly 15- 476. The Grain.—Furnish each student with shaking the instrument, the one quart of the grain of two or more varieties of grains will fill the fifty holes, barley, preferably a two-rowed, six-rowed and hull- Now press the knife, b, back to its original position, thereby cutting each grain crosswise through the middle. Then move handles, a and (5, aside, thereby laying open part c, when the number of mealy, half mealy and glassy grains may be counted. less variety. I. Color of grains: light yellow; yellow; dark yellow. Impurities: remove perfect and broken grains from ten grams; weight of perfect grains . . ; weight of broken grains . . Volume weight: w
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Keywords: ., bookauthorhuntthom, bookcentury1900, bookdecade1900, bookyear1904
