A physiological study of rooting and callusing in apple and willow
By: by Charles F. Swingle ...
Series: Botanical contribution from the Johns Hopkins university,; no. 94
Published: 1929
Place of publication: Baltimore, Md
Language: eng
Number of pages: 128
Subjects: Plant propagation.; Roots (Botany); Apples.; Willows.
Notes: Thesis (PH. D.)--Johns Hopkins university, 1927.
"Literature cited": p. 127-128.
Vita.
"Reprinted from Journal of agricultural research, 39 ... July 15, 1929."