Plant hormones
Subtitle: how they affect root formation
Series: Science study aid ; no. 9
Publisher: Dept. of Agriculture, Agricultural Research Service, Information Division : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1977
Place of publication: Washington
Language: eng
Number of pages: 10
Subjects: Plant hormones; Roots (Botany) -- Anatomy
Notes: Issued with perforations