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Barley Growth, Water Use, and Mineral Composition as Influenced by Oxygen Exclusion from Specific Regions of the Root System 1
Author(s) -
Letey J.,
Richardson W. F.,
Valoras N.
Publication year - 1965
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1965.00021962005700060034x
Subject(s) - oxygen , composition (language) , chemistry , agronomy , water soluble , zoology , mathematics , biology , philosophy , linguistics , organic chemistry
Synopsis Four treatments applied to the upper and lower halves of barley root systems consisted of A/A, N/A, A/N, and N/N where N represents very low oxygen (<1%) and A represents adequate oxygen in the order of upper/lower halves. Root weight in the upper half of A/A was similar to that in A/N and N/N was similar to N/A. In the lower half, the root weights of A/A and N/A were about equal and A/N equated N/N. Most water was removed from the half which had adequate oxygen. Top growth was highest under A/A and lowest under N/N.