Effect of Soil Type and Nutrient Status on the Yield and Composition of Tagetes Oil (Tagetes minutaL.)
作者:
E.H. Graven,
L. Webber,
G. Benians,
M. Venter,
J.B. Gardner,
期刊:
Journal of Essential Oil Research
(Taylor Available online 1991)
卷期:
Volume 3,
issue 5
页码: 303-307
ISSN:1041-2905
年代: 1991
DOI:10.1080/10412905.1991.9697948
出版商: Taylor & Francis Group
关键词: Tagetes minutaL;oil yield;oil quality;dihydrotagetone;soil fertility
数据来源: Taylor
摘要:
A glasshouse fertilizer trial (omission principle) was conducted to investigate the effect of the nutrient status of three problem Ciskei soils on the yield and quality of the essential oil ofTagetes minutaL. Acute inherent deficiencies of N and P (3 soils) and S (2 soils) were reflected in drastically reduced herbage and oil yields. N-deficiency also resulted in a dramatic increase in the dihydrotagetone content of the oil. The major oil components were not materially influenced by P and S deficiencies in the substrate. In two soils, a vesicular-arbuscular mycorrhiza developed on the minus P treatments partly alleviating the phosphorus deficiency. Results strongly suggest that inherent N, P and S deficiencies are responsible for variation in the yield and composition ofT. minutaoil in Ciskei.
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