Premium
THE EFFECT OF AUXIN FROM THE SHOOT ON ROOT DEVELOPMENT IN PISUM SATIVUM L.
Author(s) -
McDAVID C. R.,
SAGAR G. R.,
MARSHALL C.
Publication year - 1972
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1972.tb01980.x
Subject(s) - auxin , pisum , sativum , shoot , biology , botany , tendril , horticulture , root hair , root system , biochemistry , gene
S ummary The effect of auxin of shoot origin on the growth and development of the root system of Pisum sativum L. cv. Kelvedon Wonder was investigated. Root growth was reduced when auxin transport from shoot to root was interrupted, but this could have been caused by a reduction in assimilate supply rather than a deficiency of auxin. Shoot removal, however, markedly reduced the number and total length of secondary roots produced and a 1% IAA–lanolin paste applied to the cut stump compensated to a large extent for shoot removal, markedly increasing secondary root growth in de‐shooted plants. It is suggested that auxin produced by the shoot may influence the growth and development of the root system.