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Luis Rallo

et al., 2011 ). More than 300 different cultivars ( Barranco et al., 2005 ; Muñoz-Diez, 2008 ) have been found and have been progressively included in the Olive World Germplasm Bank (OWGB) in Cordoba, Spain. In 1994, the International Olive Oil

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Valtcho D. Zheljazkov, Tess Astatkie, Barry O'Brocki, and Ekaterina Jeliazkova

Anise ( Pimpinella anisum L.) is one of the most widely used plants in the world; anise seed is used as a spice ( Leela and Vipin, 2008 ), and anise seed essential oil has a number of applications as an aromatic agent in the food and liquor

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Susan L.F. Meyer, Dilip K. Lakshman, Inga A. Zasada, Bryan T. Vinyard, and David J. Chitwood

from the environment, and often have low toxicity to mammals ( Bainard et al., 2006 ). An essential oil that has been investigated for use as a pesticide against multiple pathogens and pests is derived from the clove plant. Clove oil has demonstrated

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Valtcho D. Zheljazkov, Tess Astatkie, Santosh Shiwakoti, Shital Poudyal, Thomas Horgan, Natasha Kovatcheva, and Anna Dobreva

Garden sage ( Salvia officinalis L.) is a small herbaceous aromatic, medicinal, and culinary plant from the Lamiaceae family ( Pederson, 2000 ). Garden sage essential oil is extracted from the whole above-ground herbage and has numerous

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Josep Rufat, Agustí J. Romero-Aroca, Amadeu Arbonés, Josep M. Villar, Juan F. Hermoso, and Miquel Pascual

In recent years, the increasing consumption of olive oil has boosted the planting of intensive and superintensive orchard systems to achieve competitive production costs ( Arbonés et al., 2014 ). Continuous mechanical harvesting is a key management

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Bahlebi K. Eiasu, Viwe Dyafta, and Hintsa T. Araya

-Balchin, 2002 ). However, at a commercial level, the rose-scented geranium is cultivated for its essential oil, which is produced in glands (trichomes) throughout the green parts of the plant, mainly on the leaves ( Rhind, 2012 ). Rose-scented geranium essential

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Valtcho D. Zheljazkov, Tess Astatkie, and Ekaterina Jeliazkova

( Rumble and Gobeille, 2013 ; Scher, 2002 ). These animals play a major role in seed dispersal. Rocky Mountain juniper leaves contain a significant amount of strongly aromatic essential oil, which has been subject to some previous studies ( Adams and

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Stephen S. Miller and Thomas Tworkoski

leaves ( Ferree and Hall, 1975 ) and enhance the thinning activity of mild chemical thinners ( Byers and Carbaugh, 1991 ). McArtney et al. (2006) reported that liquid lime sulfur (LS) and fish oil applied at bloom time suppressed Pn and likely

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Valtcho D. Zheljazkov, Tess Astatkie, and Vicki Schlegel

( Kalies et al., 2010 ). The essential oil of ponderosa pine also has antimicrobial properties ( Himejima et al., 1992 ; Krauze-Baranowska et al., 2002 ). Ponderosa pine essential oil has a wide internal and international market. For example, Krauze

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Paul Vossen

tablets, olive pits, and wood fragments found in ancient tombs. Ancient documents in Syria indicate that around 2000 bce the value of olive oil was five times that of wine and two and a half times that of seed oils. The spread of the olive tree probably