Mosaic of Jatropha gossypifolia in relation to the leaf-curl virus of tobacco in Puerto Rico.

Bird Piñero, Julio,

Mosaic of Jatropha gossypifolia in relation to the leaf-curl virus of tobacco in Puerto Rico. - 1956. - 46 l. illus., tables. 29 cm.

Vita.

Thesis (Ph.D.)--Univ. of Minnesota.

Bibliography: leaf 46.


Mosaic diseases.
Tobacco--Diseases and pests.
Jatropha.


Puerto Rico
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