Effect of the length of day on seedlings of alfalfa varieties and the possibility of utilizing this as a practical means of identification
By: by R. A. Oakley and H. L. Westover
Publisher: Government Printing Services
Published: 1921
Language: eng
Number of pages: 608
Notes: Reprinted from the Journal of Agriultural Research, v. 1, p. 599-608, pl. 111-121, 1921.