Experiments With Repellents Against the Corn Root Aphis 1905 And 1906
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1000 94 " 28 5 minutes 1000 88 1908] REPELLENTS AGAINST CORN ROOT -APHIS 9 POT EXPERIMENTS, 1906 In all the experiments of 1906, Learning seed-corn of excellent quality was planted, at a depth of an inch, in good black soil contained in ordinary earthen flower-pots seven inches across, and kept in the insectary of my office building at Urbana. Temperature and moisture conditions, being under strict control, were made as nearly those of a normal spring as possible. Thirty-five check lots of 50 k...ernels each (1750 kernels in all) were planted with untreated seed in the course of these experiments. Sixteen hundred and eighty of these kernels ger- minated, and this germination ratio (96 percent) may be used for com- parison in determining the effect of our various applications to the seed.
Kerosene. Kerosene was used in two ways in these experiments : (1) by mixing it thoroly with the seed in quantities varying from l /(> of a fluid ounce to 3^ ounces for each gallon of corn; and (2) by putting the seed into kerosene and soaking it there, previous to plant- ing, for periods varying from 10 minutes to 19 hours.
What to read after Experiments With Repellents Against the Corn Root Aphis 1905 And 1906?
You can find similar books in the "Read Also" column, or choose other free books by Stephen Alfred Forbes to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
1000 94 " 28 5 minutes 1000 88 1908] REPELLENTS AGAINST CORN ROOT -APHIS 9 POT EXPERIMENTS, 1906 In all the experiments of 1906, Learning seed-corn of excellent quality was planted, at a depth of an inch, in good black soil contained in ordinary earthen flower-pots seven inches across, and kept in the insectary of my office building at Urbana. Temperature and moisture conditions, being under strict control, were made as nearly those of a normal spring as possible. Thirty-five check lots of 50 k...ernels each (1750 kernels in all) were planted with untreated seed in the course of these experiments. Sixteen hundred and eighty of these kernels ger- minated, and this germination ratio (96 percent) may be used for com- parison in determining the effect of our various applications to the seed.
Kerosene. Kerosene was used in two ways in these experiments : (1) by mixing it thoroly with the seed in quantities varying from l /(> of a fluid ounce to 3^ ounces for each gallon of corn; and (2) by putting the seed into kerosene and soaking it there, previous to plant- ing, for periods varying from 10 minutes to 19 hours.
What to read after Experiments With Repellents Against the Corn Root Aphis 1905 And 1906?
You can find similar books in the "Read Also" column, or choose other free books by Stephen Alfred Forbes to read onlineMoreLess
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