Fatty acid composition of five dwarf mistletoe species was analysed by Gas Liquid Chromatography. Because of the limitations of available equipment, only aerial shoots were analysed. Palmitic, oleic, linoleic and arachidic acids were the major components of total lipids. The sum of these acids accounted for 85-95 percent of total lipids present in the tissue. There was no apparent difference between species. The ratio of saturated acids to unsaturated acids in summer collections was higher than that of fall collections. Temperature may play an important role in controlling of these ratios. Lipid content varied from 3.25% to 8.5% on a dry weight basis depending on species.

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This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).

The objectives of this study were to determine fatty acid composition and acrosome status from bull sperm with different freezabilities (n = 12). We hypothesized that lipid fractions had differentiated fatty acid compositions and such differences influence sperm freezability and the sperm acrosome. Fatty acids were extracted from fresh frozen sperm and fractionated by solid-phase extraction. Thirtyour fatty acids were quantified. Saturated fatty acids were predominant, accounting for 71 to 80% of fatty acids in both fractions. Differences in composition between fractions existed (P < 0.001). Branched chain fatty acid concentrations (15 to 18 µg) were almost twice that of polyunsaturated fatty acid concentrations found in the polar fractions (8 to 9 µg; P < 0.001). Sperm with differentiated freezabilities had few differences in 22:0, 18:1 cis 9, and 14:0 13-methyl fatty acids (P ≤ 0.011). Analyses of acrosome status of sperm revealed that acrosomes were affected differently among bulls.

Okra (Abelmoschus esculentis) is a warm weather vegetable crop with seed characteristics similar to cotton. Putative similarities between these crops make okra a potential candidate as a biodiesel feedstock. The objectives of this research are to determine an optimal inter and intra-row spacing combination to maximize seed yield, and determine optimal plant characteristics for seed yield, oil production, and fatty acid profiles. Data indicated treatments of (22.86 x 7.62, 22.86 x 22.86, and 45.72 x 30.48 cm) were better than 91.44 x 15.24 cm with respect to seed yield, although, 45.72 x 30.48 and 91.44 x 15.24 cm are the same plant population. Variety trials indicated that Annie Oakley II produced substantial seed and oil yields of 3547 kg ha-1 and 1376 L ha-1, respectively in 2009. Data indicated palmitic, linoleic, and linolenic acids to be the primary constituents of okraseed oil.

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