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Record Details

Record 33 of 567
An evaluation of MES (2(N-Morpholino)ethanesulfonic acid) and Amberlite IRC-50 as pH buffers for nutrient solution studies
Author and Affiliation:
Bugbee, B. G.(Utah State University, Plant Science Department, Logan 84322, United States)
Salisbury, F. B.
Abstract: All buffering agents used to stabilize pH in hydroponic research have disadvantages. Inorganic buffers are absorbed and may become phytotoxic. Solid carbonate salts temporarily mitigate decreasing pH but provide almost no protection against increasing pH, and they alter nutrient absorption. Exchange resins are more effective, but we find that they remove magnesium and manganese from solution. We have tested 2(N-Morpholino)ethanesulfonic acid (MES) as a buffering agent at concentrations of 1 and 10 mol m-3 (1 and 10 mM) with beans, corn, lettuce, tomatoes, and wheat. MES appears to be biologically inert and does not interact significantly with other solution ions. Relative growth rates among controls and MES treatments were nearly identical for each species during the trial period. The pH was stabilized by 1 mol m-3 MES. This buffer warrants further consideration in nutrient research.
Publication Date: Jan 01, 1985
Document ID:
20040121540
(Acquired Oct 12, 2004)
Subject Category: LIFE SCIENCES (GENERAL)
Document Type: Journal Article
Publication Information: Journal of plant nutrition; p. 567-83; (ISSN 0190-4167); Volume 8; 7
Publisher Information: United States
Contract/Grant/Task Num: NCC2-139
Financial Sponsor: NASA Ames Research Center; Moffett Field CA United States
Description: In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: AMBERLITE (TRADEMARK); BUFFERS; FARM CROPS; HYDROPONICS; ION EXCHANGE RESINS; PH; CHELATION; CORN; CULTURE MEDIA; EVALUATION; ION CONCENTRATION; IRON; LEGUMINOUS PLANTS; NUTRITIONAL REQUIREMENTS; PLANTS (BOTANY); TOMATOES; VEGETABLES; WHEAT
Other Descriptors: ALKANESULFONIC ACIDS/CHEMISTRY/PHARMACOLOGY; ANION EXCHANGE RESINS/CHEMISTRY/PHARMACOLOGY; BUFFERS; CROPS, AGRICULTURAL/DRUG EFFECTS/GROWTH & DEVELOPMENT; HYDROPONICS/METHODS; MORPHOLINES/CHEMISTRY/PHARMACOLOGY; CHELATING AGENTS/PHARMACOLOGY; COMPARATIVE STUDY; CULTURE MEDIA/ANALYSIS; EDETIC ACID/ANALOGS & DERIVATIVES/PHARMACOLOGY; EVALUATION STUDIES; FABACEAE; HYDROGEN-ION CONCENTRATION; IRON/METABOLISM; LETTUCE; LYCOPERSICON ESCULENTUM; NUTRITIONAL REQUIREMENTS; PLANTS, MEDICINAL; SUPPORT, NON-U.S. GOV'T; SUPPORT, U.S. GOV'T, NON-P.H.S; TRITICUM; ZEA MAYS
Availability Source: Other Sources
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