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WATER‐SENSITIVITY IN BARLEY I. RESPIRATION STUDIES AND THE INFLUENCE OF OXYGEN AVAILABILITY
Author(s) -
Crabb D.,
Kirsop B. H.
Publication year - 1969
Publication title -
journal of the institute of brewing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 51
eISSN - 2050-0416
pISSN - 0046-9750
DOI - 10.1002/j.2050-0416.1969.tb03210.x
Subject(s) - respiration , germination , oxygen , husk , oxygen tension , hordeum vulgare , respiration rate , chemistry , agronomy , biology , botany , poaceae , organic chemistry
The respiration of water‐sensitive and non water‐sensitive barley has been investigated; it is shown that there is no significant difference in the rate of oxygen consumption by the two types of barley. The presence of a husk and a surface film of water are shown to reduce the oxygen uptake in both types of barley. The embryos of water‐sensitive barleys germinate to a lesser degree than those of fully mature barleys at low oxygen tension. Water‐sensitivity thus appears to be a reflection of a higher oxygen requirement for germination by the embryo.