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Mineral Nutrition of Olearia Phlogopappa: Effect on Growth, Essential Oil Yield, and Composition
Glasshouse grown clonal material from the Australian endemic Okaria phlogopappa Labill. D.C. was studied under various nitrogen (N), phosphorus (P), calcium (Ca), and potassium (K) conditions ranging from 0.5N Hoagland nutrient solution to a four-fold dilution of N, P, and Ca and a three-fold dilution of K. Low N produced the slowest growth rates, but the greatest yield of essential oil/g dry matter. Low P decreased the ratio of monoterpenes to sesquiterpenes, mostly through an increase in the major odour components, kessane and liguloxide. Levels of the nutrients, N, P, K, Ca, and magnesium (Mg), required for optimum dry matter production were 2.3,0.25, 0.4, 0.6, and up to 0.7%, respectively. © 1995, Taylor & Francis Group, LLC. All rights reserved.
History
Publication title
Communications in Soil Science and Plant AnalysisVolume
26Issue
7-8Pagination
1299-1313ISSN
0010-3624Department/School
Tasmanian Institute of Agriculture (TIA)Publisher
Marcel Dekker IncPlace of publication
United StatesRepository Status
- Restricted