551 |
Seed transmission of plant viruses.McEvoy, Edward Thomas. January 1937 (has links)
No description available.
|
552 |
Studies on the mosaic disease of tobacco.Howatt, John Lorne. January 1931 (has links)
No description available.
|
553 |
Pathological anatomy of boron-deficient plants.Lachance, René-O. January 1940 (has links)
No description available.
|
554 |
A study of diseases of narcissi.Hicks, Arthur J. January 1931 (has links)
No description available.
|
555 |
A study of seed treatment.Godbout, Fernand Louis. January 1929 (has links)
No description available.
|
556 |
A common leaf spot of iris in Quebec.Perreault, Champlain. January 1927 (has links)
No description available.
|
557 |
Studies on the significance of the microflora of wilt affected clover plants.Sackston, Waldemar E. January 1940 (has links)
No description available.
|
558 |
Investigations of the secondary tumour formation by Pseudomones tumefaciens sm. and towns on herbaceous hosts.Eardley, Eric Allworth. January 1932 (has links)
No description available.
|
559 |
Effect of growth substances upon some phytopathogenic fungi.Payette, Albert. January 1942 (has links)
No description available.
|
560 |
Soil treatment with mercurials for the control of common scab of potatoes (actinomyces scabies (thax) gussow).Généreux, Georges Henri. January 1940 (has links)
No description available.
|
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