POTENTIAL OF HIGH ERUCIC ACID RAPESEED (BRASSICA NAPUS, VAR. DWARF ESSEX) OIL AS A HYDRAULIC FLUID

1997 ◽  
Vol 13 (4) ◽  
pp. 443-449
Author(s):  
V. V. Harish ◽  
J. C. Thompson ◽  
C. L. Peterson
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Hydraulic Fluid ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed

Assessment of agronomic performance and heterosis for agronomic traits in hybrid high erucic acid rapeseed (HEAR)

2009 ◽  
Vol 89 (2) ◽  
pp. 227-237 ◽  
Author(s):  
R. D. Cuthbert ◽  
G. Crow ◽  
P. B. E. McVetty
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Seed Yield ◽  
Agronomic Traits ◽  
Brassica Napus L ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Days To Maturity ◽  
The University ◽  
Seed Yields

Twelve genetically diverse and geographically distinct high erucic acid rapeseed (HEAR) Brassica napus L. cultivars/lines were selected and crossed by hand emasculation in a topcross design to produce 45 F1 hybrid combinations. Seven of the twelve parents were HEAR cultivars/lines developed by the University of Manitoba (UM) and the remaining five parents were proprietary European (EU) HEAR cultivars/lines. Adequate seed was produced to evaluate the hybrids and parents in replicated yield trials in six environments in Manitoba during 2004 and 2005. Vigor, days to first flower, days to maturity, lodging, plant height, and seed yield were assessed. The hybrids were generally more vigorous, taller and more lodging resistant than their parents with similar days to first flower and days to maturity as their earlier parents. The best hybrids in this study displayed high parent heterosis for seed yield of up to 143% and commercial heterosis for seed yield of up to 99%. These hybrids were from the most genetically diverse UM × EU crosses. HEAR hybrids appear very promising approach to increase seed yields in this crop. Key words: Brassica napus L., HEAR, heterosis, hybrids, genetic diversity

Comparison of pedigree selection and doubled haploid breeding methods for high erucic acid rapeseed cultivar development

2005 ◽  
Vol 85 (4) ◽  
pp. 809-814 ◽  
Author(s):  
J. L. Jacobs ◽  
P. B.E. McVetty
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Doubled Haploid ◽  
Seed Quality ◽  
Breeding Methods ◽  
Brassica Napus L ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Pedigree Selection ◽  
Doubled Haploid Breeding

Sixty families from pedigree selection and 60 lines from doubled haploid development per cross, for three different Brassica napus L. high erucic acid rapeseed (HEAR) crosses, were created and then compared for agronomic and seed quality performance in four environments in Manitoba in 2000 and 2001. Differences in mean performance for many traits were observed within crosses; however, these differences were not consistent among crosses. Similarly, there were differences observed in ranges for many traits within crosses but with few clear trends among crosses. Similar numbers of superior pedigree selection families and doubled haploid lines within and among crosses for individual traits and for combinations of all traits were found in this study. Financial and temporal resource requirements for these two breeding methods were found to be similar. It is concluded that both pedigree selection and doubled haploid breeding methods have their particular strengths and weaknesses but that neither is clearly superior for the development of B. napus HEAR cultivars. Key words: Brassica napus L., HEAR, breeding method comparisons

Acyl-CoA elongase, a key enzyme in the development of high-erucic acid rapeseed?

2005 ◽  
Vol 107 (4) ◽  
pp. 263-267 ◽  
Author(s):  
Juliette Puyaubert ◽  
Christel Garcia ◽  
Sylvette Chevalier ◽  
Ren� Lessire
Keyword(s):  
Erucic Acid ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Key Enzyme

Enzymatic synthesis of trierucin from high-erucic acid rapeseed oil

1993 ◽  
Vol 70 (10) ◽  
pp. 961-964 ◽  
Author(s):  
Michael Trani ◽  
Robert Lortie ◽  
Françoise Ergan
Keyword(s):  
Erucic Acid ◽  
Enzymatic Synthesis ◽  
Rapeseed Oil ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed

PERFORMANCE AND HISTOLOGICAL CHANGES IN TISSUES OF PIGS FED DIETS CONTAINING HIGH OR LOW ERUCIC ACID RAPESEED OILS OR SOYBEAN OIL

1975 ◽  
Vol 55 (1) ◽  
pp. 77-85 ◽  
Author(s):  
F. X. AHERNE ◽  
J. P. BOWLAND ◽  
H. VOGTMANN ◽  
R. T. HARDIN ◽  
R. G. CHRISTIAN
Keyword(s):  
Soybean Oil ◽  
Erucic Acid ◽  
Rapeseed Oil ◽  
Caloric Intake ◽  
Histological Changes ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Ad Libitum ◽  
Pig Performance ◽  
Low Erucic Acid

Three experiments were conducted to compare high (20.6%) or low (4.0%) erucic acid rapeseed oils with soybean oil when the oils were fed at a level of 15% of the diet for pigs from 25 to 90 kg liveweight. The low erucic acid rapeseed oil originated from Brassica campestris cv. Span. A fourth diet containing no supplemental oil served as a control. In one experiment, 48 crossbred pigs were fed ad libitum in groups of three pigs replicated four times. In a second experiment, 48 pigs were individually fed at a level of 80% of the daily caloric intake of the pigs in the first experiment. In a third experiment, 16 pigs in four groups were allowed continuous free-choice access to the four diets. Serial slaughter and digestibility data were obtained. The incorporation of high or low erucic acid rapeseed oil in the diets did not reduce pig performance when such diets were fed either ad libitum or at a restricted level. When given a choice of feed, pigs selected less of the high erucic acid rapeseed oil diet. When not given a choice of feed, pigs consumed as much of a high erucic acid rapeseed oil diet as they did of the other diets. Digestibility coefficients for energy, nitrogen and lipids were not significantly different for any of the three oil-containing diets. Histological examination of the heart, liver and spleen revealed no marked differences due to feeding any of the oil-based diets.

Enzymic activities and gene expression of enzymes of the acyl-CoA elongase during rapeseed development

2000 ◽  
Vol 28 (6) ◽  
pp. 645-647 ◽  
Author(s):  
J. Puyaubert ◽  
B. Garbay ◽  
W. Dieryck ◽  
P. Costaglioli ◽  
T. Roscoe ◽  
...  
Keyword(s):  
Gene Expression ◽  
Erucic Acid ◽  
Seed Development ◽  
Mrna Levels ◽  
High Erucic Acid ◽  
Expression Levels ◽  
High Erucic Acid Rapeseed ◽  
Developmental Profiles ◽  
Low Erucic Acid ◽  
Maximal Expression

Enzymic activities and gene expression of oleoylCoA elongase were studied during seed development using two different rapeseed cultivars, high-erucic-acid rapeseed (HEAR) and low-erucic-acid rapeseed (LEAR). The overall elongase activities were maximal in HEAR between the fourth and eighth weeks after pollination (WAP) and absent in LEAR. The 3-ketoacyl-CoA synthase (condensing enzyme, CE) mRNA levels and the developmental profiles in the two cultivars were different since maximal expression levels were detected in HEAR and LEAR at WAP 4 and WAP 6, respectively. Anti-CE antibodies revealed two proteins of 60 and 67 kDa in both cultivars and an additional reacting protein of 57 kDa in HEAR.

Venus high erucic acid, low glucosinolate summer rape

1996 ◽  
Vol 76 (2) ◽  
pp. 341-342 ◽  
Author(s):  
P. B. E. McVetty ◽  
R. Scarth ◽  
S. R. Rimmer ◽  
C. G. J. van den Berg
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Key Words ◽  
Seed Oil ◽  
Western Canada ◽  
Brassica Napus L ◽  
High Erucic Acid ◽  
Rapeseed Cultivar ◽  
Cultivar Description ◽  
Canola Quality

Venus summer rape (Brassica napus L.) is a high-erucic acid rapeseed cultivar with canola-quality meal. Venus has an average 5% yield advantage over Hero rapeseed with seed oil and protein contents comparable to Hero. Venus is adapted to the southern B. napus growing regions of western Canada. Key words: Rape (summer), high erucic acid-low glucosinolate, cultivar description

scholarly journals Low and High Erucic Acid Rapeseed Oils in Rations for Laying Hens

1973 ◽  
Vol 52 (3) ◽  
pp. 955-962 ◽  
Author(s):  
H. Vogtmann ◽  
D.R. Clandinin ◽  
A.R. Robblee
Keyword(s):  
Erucic Acid ◽  
Laying Hens ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed
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