ScienceJohn Michels (Journalist) 1941 |
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Page 189
... plants on plot No. 12L showing no visible symptoms of disease ( II ) , from plants showing slight infection ( III ) , and from badly infected plants ( IV ) . Only a portion of the triangle of which each side is 100 is shown . proportion ...
... plants on plot No. 12L showing no visible symptoms of disease ( II ) , from plants showing slight infection ( III ) , and from badly infected plants ( IV ) . Only a portion of the triangle of which each side is 100 is shown . proportion ...
Page 387
... plant explora- tion and introduction . For many years the Division of Plant Exploration and Introduction of the Bureau of Plant Industry has continued to search the four cor- ners of the earth to find new plants that would be of value ...
... plant explora- tion and introduction . For many years the Division of Plant Exploration and Introduction of the Bureau of Plant Industry has continued to search the four cor- ners of the earth to find new plants that would be of value ...
Page 429
... plants . The disease produced in these plants was in- distinguishable from that in a group of control plants . After a period of 4 to 5 weeks , the viruses were iso- lated by differential centrifugation . The yields were comparable in ...
... plants . The disease produced in these plants was in- distinguishable from that in a group of control plants . After a period of 4 to 5 weeks , the viruses were iso- lated by differential centrifugation . The yields were comparable in ...
Contents
VOL | 2 |
G A Prophecy Fulfilled 350 | 17 |
Pellagra Urine in L E HOLT JR and V A NAJJAR | 20 |
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