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Abstract

Pectic substances in 4 avocado cultivars were determined as anhydrouronic acid (AUA) during ontogeny and related to fruit maturity, alcohol-insoluble solids (AIS), alcohol-soluble solids (ASS), ASS minus oil, total oil, fresh weight and dry weight. The concentration of pectic substances in avocado pulp varied among different cultivars and increases during growth and maturation. AUA varied between 0.7 to 1.5% on a fresh weight basis. However, values on a dry weight basis are relatively constant at about 5.0% and independent of the state of maturity or cultivar. AIS, ASS, alcohol-soluble acid and oil increase as the fruit mature, ASS minus oil and water content decreased during the growth and maturation periods. Changes in oil content during ontogeny was the only constituent of those examined which was related to maturity.

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., 2004 ; Johnson et al., 2012 ). Common conclusions drawn from these studies were that none of the essential oil herbicides provided any residual weed control, small weed size was critical for maximum efficacy, environmental conditions affected herbicide

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provided the optimal duration of cumin seed distillation yet. According to our experience, grinding of the cumin seed before the EO extraction may result in much faster oil extraction. However, as most EO, it doesn’t dissolve in water, and evaporates

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‘Scotch’ spearmint ( Mentha × gracilis Sole. = M. cardiaca L.) and ‘Native’ spearmint ( Mentha spicata L.) are well-known and widely grown essential oil crops in many countries, including the United States ( Bienvenu et al., 1999 ; Lawrence

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; Thorpe et al., 2008 ). We propose including neem oil among the “complex mixtures.” This oil, extracted from the seeds of Azadirachta indica (A. Juss.), has been known and used for a long time in agriculture, as a fertilizer, soil conditioner and

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The goal of this study was to evaluate potential alternatives to endosulfan for control of the blueberry bud mite (Acalitus vaccinii), because the availability of this acaricide may be restricted in the future. Laboratory evaluations of potential acaricides showed that endosulfan and a combination of abamectin plus oil provided 97% and 100% control, respectively. Pyridaben and fenpropathrin were less effective, reducing mite survival by 49% and 57%, respectively. Further laboratory evaluation of the abamectin plus oil treatment showed that each component applied alone provided a high level of control of blueberry bud mite. Field trials in Michigan on a mature highbush blueberry (Vaccinium corymbosum) planting were conducted to compare control of this pest by postharvest applications of endosulfan, delayed-dormant application of oil, or a combination of both treatments. The oil provided a 40% reduction in mite scores, while endosulfan was more effective (48%) and similar to the combination of endosulfan and oil (52%). A separate field trial using a multifan/nozzle sprayer that applied the pesticide in 233.8 L·ha-1 (25 gal/acre) of water suggested that the level of control from one application of endosulfan was not as effective as two applications. Results are discussed in relation to developing future bud mite control programs in blueberry and the need to address gaps in our understanding of the biology of blueberry bud mite. Endosulfan (Thiodan 50 WP), Endosulfan (Thiodan 3 EC), Abamectin (AgriMek 0.15 EC), Fenpropathrin (Danitol 2.4 EC), Pyridaben (Pyramite 60 WP).

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We have previously reported that canola sprouts, on an average, contained 27.3% oil, 25.1% protein, and 10.8% crude fiber on a dry weight basis ( Bhardwaj and Hamama, 2007 ) and 0.98, 1.23, 427, 0.57, 8.8, 430, 312, 4.54, 15, 607, 573, and 4.89 mg

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Oil tea, an important edible oil tree species of Camellia , along with olive ( Olea europaea ), oil palm ( Elaeis guineensis ), and coconut ( Cocos nucifera ), are the four major woody oil species ( Yang et al., 2016 ). Oil tea has been cultivated

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Abstract

A treatment of potato tubers (Solarium tuberosum L.) at 22°C with corn oil, peanut oil, olive oil, vegetable oil, or mineral oil significantly and effectively inhibited chlorophyll and solanine formation. A concn of 1/8 corn oil and 7/8 acetone was the minimum effective diluted oil treatment.

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1 Reprint requests should be addressed to pmvossen@ucdavis.edu . We thank the members of the California Olive Oil Taste Panel: Alexandra Devarenne, Franco Dunn, John Hadley, Rick Jones, Arden Kremer, Nancy Lilly

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