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Mineral Nutrition of Olearia Phlogopappa: Effect on Growth, Essential Oil Yield, and Composition

journal contribution
posted on 2023-05-16, 09:41 authored by Dragar, VA, Robert MenaryRobert Menary
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 Analysis

Volume

26

Issue

7-8

Pagination

1299-1313

ISSN

0010-3624

Department/School

Tasmanian Institute of Agriculture (TIA)

Publisher

Marcel Dekker Inc

Place of publication

United States

Repository Status

  • Restricted

Socio-economic Objectives

Horticultural crops not elsewhere classified

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