The Cereals in AmericaOrange Judd Company, 1908 - 421 páginas |
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Página x
... variation , p . 19 ; Influence of environment , p . 19 ; Change of seed , p . 20 ; Crossing , p . 21 ; Selection , p . 21 ; Power of specific forms to repro- duce themselves , p . 22 ; Importance of large num- bers , p . 23 . Plant ...
... variation , p . 19 ; Influence of environment , p . 19 ; Change of seed , p . 20 ; Crossing , p . 21 ; Selection , p . 21 ; Power of specific forms to repro- duce themselves , p . 22 ; Importance of large num- bers , p . 23 . Plant ...
Página 10
... variation in the adaptability of different soils under the same climatic conditions . Certain soils are much better adapted to wheat and grass than for maize and potatoes , while other soils are much better adapted to maize and potatoes ...
... variation in the adaptability of different soils under the same climatic conditions . Certain soils are much better adapted to wheat and grass than for maize and potatoes , while other soils are much better adapted to maize and potatoes ...
Página 18
... variations that were considered desirable by the gardener without any conscious attempt to produce these specific forms . 37. Examples of Definite Improvement . - The sugar beet is an illustration of systematic breeding to bring about a ...
... variations that were considered desirable by the gardener without any conscious attempt to produce these specific forms . 37. Examples of Definite Improvement . - The sugar beet is an illustration of systematic breeding to bring about a ...
Página 19
... Variation . - Variation is the basis of selec- tion . Plants must vary or they could not be selected . are two general methods of producing variations , viz .: Environment , such as soil , climate , space , cultivation , etc. 2 ...
... Variation . - Variation is the basis of selec- tion . Plants must vary or they could not be selected . are two general methods of producing variations , viz .: Environment , such as soil , climate , space , cultivation , etc. 2 ...
Página 21
... variation . Yield in grains of 100 plants , showing greater variation in yield of hybrid wheat than of either parent form . The yield of the hybrid is indicated by the line marked -x- ( After Hays . ) Crossing is also employed not only ...
... variation . Yield in grains of 100 plants , showing greater variation in yield of hybrid wheat than of either parent form . The yield of the hybrid is indicated by the line marked -x- ( After Hays . ) Crossing is also employed not only ...
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Términos y frases comunes
aleurone average barley bran broom corn buckwheat bushels bushels per acre cent cereals chinch bug climate color corn crop crude fiber culm cultivated dent maize drill dry matter ears embryo endosperm Expt Farms Rpt feeding feet fertilizers field five flint flour flowering glume fodder four germination gluten grade grain grass grow grown growth harvested Hessian fly hull husk Illinois Illinois Station inches deep increase injury insects Kafir kernel land less maize maize plant manure maturity method nitrogen North oats obtained Ohio one-half Ontario Agricultural College outer glumes panicle percentage plat plowing pollen pounds produced protein rachis rainfall rice ripening roots rows season silage six-rowed smut soil sorghum sowing sown species spike spikelets stalks starch stover straw sweet maize threshing tion U. S. Dept usually variation varieties vary weeds weight per bushel winter wheat yellow yield of grain
Pasajes populares
Página 341 - No. 2 barley shall be sound, of healthy color, not plump enough for No. 1, reasonably clean and reasonably free from other grain. No. 3 barley shall Include slightly shrunken and otherwise slightly damaged barley not good enough for No. 2. No.
Página 341 - No. 3 barley shall Include slightly shrunken and otherwise slightly damaged barley not good enough for No. 2. No. 4 barley shall include all barley fit for malting purposes not good enough for No. 3. No. 5...
Página 273 - No 1 white corn shall be sound, dry, plump and well cleaned. No. 2 WHITE CORN— No.