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Pinus pinasterOleoresin Plus trees Monoterpenes Sesquiterpenes Neutral diterpenes Resin acidsThe present paper establishes the relationship between certain components of oleoresin and the character of a tree as high producer (plus tree). The composition of the oleoresin (monoterpenes, sesquiterpenes, neutral diterpenes and resin acids) of Pinus pinaster in plus trees was studied by gaschromatography/mass spectrometry. The main components of the monoterpenes are a-pinene, bpinene, limonene + b-phellandrene; of the sesquiterpenes b-caryophylene and longifolene; of neutral diterpenes isoabienol, abienol, isopimaral, pimaral, 11,13-labdien-8-ol and of resin acids levopimaric + palustric, neoabietic, abietic, isopimaric, pimaric, dehydroabietic, sandaracopimaric and 7,13,15 abietatrienoic acid. The components which enable us to distinguish between plus and control trees are myrcene and noracid 1 at a level of significance of 1 %, and abienol and dehydroabietic acid at 5 %. The composition of diterpenes permits a certain approach to distinguish between control and plus trees.Brought to you by | Tokyo Daigaku Authenticated Download Date | 6/9/15 10:41 AM

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Links between phenology, yield and composition of the essential oil of common sage, Salvia officinalis L., grown in Guadalajara (Central Spain) were determined in the different phases of the biological cycle during one year. Data showed an average yield about 1.0%. The analysis of the oil components was carried out by GC-FID and GC/MS. The main oil constituent was alpha thujone (40.1-46.5%). Other identified compounds are beta pinene (2.6-4.5%), cineole (3.5-8.7%), beta thujone (4.1-5.6%), camphor (4.1-8.0%), borneol (1.3-3.7%), alpha humulene (3.8-7.3%), viridiflorol (3.4-12.6%) and manool (0.1-4.5%). The highest yield of oil was obtained in the period of full flowering and the highest concentration of alpha thujone in the period of initial flowering.

Links between phenology, yield and composition of the essential oil of common thyme, Thymus vulgaris L., grown in Guadalajara (Central Spain) were determined in the different phases of the biological cycle during one year. Data showed an average yield of about 2%. The analysis of the oil components was carried out by GC-FID and GC/MS. The main oil constituents were thymol (36.3-47.5%), p-cymene (13.0-27.8%) and g-terpinene (5.3-16.2%), which is in accord with a thymol chemotype. The highest yield of oil was obtained in the period of full flowering and the highest concentration of thymol in the period of initial flowering.