Effects of Iron Chelates and Nitrogen on Safflower and Flax Seed Production and Oil Content and Quality<sup>1</sup>

Yermanos, D. M.; Hall, B. J.; Burge, W. E.

doi:10.2134/agronj1964.00021962005600060019x

Cited by 14 publications

(4 citation statements)

References 4 publications

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“…Correlation coefficients were --0.56 and --0.33 for the Mn and B e:x periments, respectively (P = .01 ). This effect is supported in other reported work (13,15,16,18), in that factors raising seed oil content usually result in lowering protein content, particularly when these two constituents comprise a major portion of the seed kernel. In any event, the changes in this study were small and therefore would probably have little effect ou the nutritive value of cottonseed.…”

Section: Discussionsupporting

confidence: 85%

Boron and Manganese Effects on Protein, Oil Content, and Fatty Acid Composition of Cottonseed¹

Anderson¹,

Worthington

1971

Agronomy Journal

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Field experiments were conducted to study the effect of Mn and B on the oil and protein content and the fatty acid composition of cotton‐seed produced on soils where supplements of these elements have increased yields of lint cotton. Manganese and B, in separate experiments, were applied to the foliage or to the soil at three growth stages. With only one exception, neither time nor method of applying B or Mn to cotton influenced the oil or protein content, or the distribution of fatty acids within the seed oil. In the single exception, a small but significant increase in oil content occurred when B was applied to the foliage at the 5‐ to 10‐leaf stage. There were negative correlations (P = .01) between seed protein and oil for both Mn and B. Seed oil and protein content varied among locations due to factors other than available soil Mn or B.

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Section: Discussionsupporting

confidence: 85%

Boron and Manganese Effects on Protein, Oil Content, and Fatty Acid Composition of Cottonseed¹

Anderson¹,

Worthington

1971

Agronomy Journal

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“…However, the addition of iron chelates to the soil caused a slight increase in the linolenic acid content of the soybeans. Yermanos et aL (1964) reported no effect of iron chelates on the iodine value of safflower, but observed a slight decrease in iodine value with increased levels of nitrogen dressing in field plots. Kabn et al (1963) observed no significant effect of N-P-K on the iodine value of flax in a 3* factorial design experiment in field plots.…”

Section: Discussionmentioning

confidence: 93%

Lipids in Cruciferae

Appelqvist

1968

Physiologia Plantarum

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The effect of nitrogen, phosphorus and potassium nutrition on average seed weight, oil content and fatty acid composition of rape seed (Brassica napus) grown in soil‐free culture has been studied. Nitrogen effected an increase in seed weight and a decrease in oil content, while the average amount of oil per seed remained constant. A small, but highly significant, decrease in palmitic and eicosenoic acid content, a significant decrease in oleic acid and a highly significant increase in erucic acid content were observed. This suggests that a decrease in the extent of elongation of oleic acid to erucic acid occurs in seeds developing on plants with sub‐optimal levels of nitrogen nutrition. Phosphorus and potassium had very limited effects on fatty acid composition. Significant differences were found only in oleic acid content for phosphorus alone, the nitrogen‐phosphorus interaction and the phosphorus‐potassium interaction. The effect of various levels of sulfate at optimal levels for nitrogen, phosphorus and potassium, was studied in a separate experiment. Seed from sulfur‐starved plants had decreased oil content; oleic acid percentages were increased and erucic acid percentages decreased. Excessive amounts of sulfate had no effect on fatty acid composition.

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“…In general, high temperatures were reported to lower the degree of unsaturation of oil of sunflowers, soybeans, and cotton (8,10,19). Several environmental factors that contribute to vegetative growth and performance appear to have no detectable effects on the composition of vegetable oils (e.g., mineral nutrition and fertility (11) and soil and foliar applications of insecticides ( 16,17) on soybean oil; also, iron chelates, gibberellic acid, and soil salinity on safflower oil (22,23,24).…”

Section: Literature Reviewmentioning

confidence: 99%

Effect of Planting Date on Seed Yield, Oil Content, and Water Requirement of Safflower¹

Luebs¹,

Yermanos²,

Laag³

et al. 1965

Agronomy Journal

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Synopsis Yields of irrigated safflower decreased between 150 and 300 pounds per acre for each 4‐ to 6‐week delay in planting from January 16 to April 23. Seed weight, hull content, linoleic acid content, and iodine values of the oil decreased in the later plantings, while oil content of seed increased. Total irrigation requirements for January, February, and March plantings were similar. Average consumptive moisture use was 34.4 inches, and the peak average daily moisture use was 0.39 inch.

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Effects of Iron Chelates and Nitrogen on Safflower and Flax Seed Production and Oil Content and Quality¹

Cited by 14 publications

References 4 publications

Boron and Manganese Effects on Protein, Oil Content, and Fatty Acid Composition of Cottonseed¹

Boron and Manganese Effects on Protein, Oil Content, and Fatty Acid Composition of Cottonseed¹

Lipids in Cruciferae

Effect of Planting Date on Seed Yield, Oil Content, and Water Requirement of Safflower¹

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Effects of Iron Chelates and Nitrogen on Safflower and Flax Seed Production and Oil Content and Quality1

Cited by 14 publications

References 4 publications

Boron and Manganese Effects on Protein, Oil Content, and Fatty Acid Composition of Cottonseed1

Boron and Manganese Effects on Protein, Oil Content, and Fatty Acid Composition of Cottonseed1

Lipids in Cruciferae

Effect of Planting Date on Seed Yield, Oil Content, and Water Requirement of Safflower1

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Effects of Iron Chelates and Nitrogen on Safflower and Flax Seed Production and Oil Content and Quality¹

Boron and Manganese Effects on Protein, Oil Content, and Fatty Acid Composition of Cottonseed¹

Boron and Manganese Effects on Protein, Oil Content, and Fatty Acid Composition of Cottonseed¹

Effect of Planting Date on Seed Yield, Oil Content, and Water Requirement of Safflower¹