Capsule closure and seed discoloration in flax from exposure to various moisture and temperature conditions

1993 ◽  
Vol 73 (1) ◽  
pp. 155-158
Author(s):  
G. H. Gubbels ◽  
E. O. Kenaschuk
Keyword(s):  
Key Words ◽  
Linum Usitatissimum ◽  
Free Water ◽  
High Humidity ◽  
Temperature Conditions ◽  
Linum Usitatissimum L ◽  
Paper Towels

Mature flax (Linum usitatissimum L.) capsules closed completely within 50 min after exposure to free water, but not all closed completely when exposed to high humidity. In capsules placed between wet paper towels, 50% of the seeds discolored to dark brown or black in 3.4, 5.6, 6.3 and 12.8 d after exposure at 20, 15, 10 and 5 °C, respectively. Microorganisms were implicated in the discoloration processes. Key words: Flax, Linum usitatissimum L., seed weathering, seed discoloration

AC Emerson flax

1996 ◽  
Vol 76 (3) ◽  
pp. 483-485 ◽  
Author(s):  
E. O. Kenaschuk ◽  
K. Y. Rashid ◽  
G. H. Gubbels
Keyword(s):  
Key Words ◽  
Linum Usitatissimum ◽  
Oil Quality ◽  
Calcareous Soils ◽  
Research Centre ◽  
Linum Usitatissimum L ◽  
Melampsora Lini ◽  
Early Maturing ◽  
Cultivar Description ◽  
Moderately Resistant

AC Emerson, a medium-early maturing oilseed flax (Linum usitatissimum L.), was released by Agriculture and Agri-Food Canada, Agri-Food Diversification Research Centre, Morden, Manitoba, in 1994. The cultivar has high oil quality, medium-large seed size and was high yielding in both early and late seeding tests in the Black and the Brown Soil zones of Manitoba and Saskatchewan. Because of its chlorosis tolerance, it is particularly well suited to the calcareous soils of Manitoba. It is immune to North American races of rust caused by Melampsora lini and moderately resistant to wilt caused by Fusarium oxysporum f. sp. lini. Key words: Flax, oilseed, Linum usitatissimum L., cultivar description

An EMS-induced low-linolenic-acid mutant in McGregor flax (Linum usitatissimum L.)

1991 ◽  
Vol 71 (2) ◽  
pp. 393-396 ◽  
Author(s):  
G. G. Rowland
Keyword(s):  
Fatty Acid ◽  
Key Words ◽  
Linolenic Acid ◽  
Linum Usitatissimum ◽  
Ethyl Methanesulphonate ◽  
Double Mutation ◽  
Linum Usitatissimum L ◽  
Half Seed ◽  
Low Linolenic Acid ◽  
Low Linolenic

McGregor flax (Linum usitatissimum L.) seed was treated with ethyl methanesulphonate (EMS) and the resulting M1, M2, M3 and M4 progeny were screened for linolenic acid mutants, using the half-seed technique. A stable low-linolenic acid (2%) mutant was found in the M4. The low linolenic character is controlled by recessive alleles at two independent loci, apparently the result of a rare double mutation. Key words: EMS, mutation, flax, Linum usitatissimum, fatty acid

SOME OBSERVATIONS ON POLYEMBRYONY IN CROSSES BETWEEN TWINNING AND NONTWINNING LINES OF FLAX

1986 ◽  
Vol 66 (4) ◽  
pp. 819-824 ◽  
Author(s):  
G. G. ROWLAND ◽  
L. A. WEERASENA
Keyword(s):  
Key Words ◽  
Doubled Haploid ◽  
Linum Usitatissimum ◽  
Recurrent Selection ◽  
Female Parent ◽  
Selection Program ◽  
Doubled Haploid Lines ◽  
Linum Usitatissimum L ◽  
Significant Difference ◽  
Twinning Frequency

A recurrent selection program was initiated using the polyembryony character found in flax (Linum usitatissimum L.) to produce haploids that could then be used to create doubled haploid lines. Observations from this programme show that using the haploid member of a twin seedling as the female parent in crosses to the diploid male is not as efficient as using its diploid twin as the female parent. Previous work has suggested that in lines carrying the polyembryony character, bolls containing fewer than 10 seeds, which is the maximum number in flax, were more likely to contain a seed that would give rise to a twin seedling. In this study twin seedlings were obtained from seed of bolls containing from 1 to 10 seeds, and bolls with 10 seeds were often as good a source of twin seedlings as those with nine seeds or fewer. There was no significant difference in the twinning frequency of F2 seed of crosses between twinning and nontwinning lines (range 0.8–1.9%) but these same crosses were significantly different in twinning frequency in doubled haploid lines (range 1.1–7.9%). The twinning frequency of individual doubled haploid lines within crosses varied from 0.4 to 20.3%.Key words: Flax, haploid breeding, polyembryony, Linum usitatissimum

Use of desiccants to reduce frost damage in immature flax

1994 ◽  
Vol 74 (1) ◽  
pp. 121-123 ◽  
Author(s):  
G. H. Gubbels ◽  
D. M. Bonner ◽  
E. O. Kenaschuk
Keyword(s):  
Key Words ◽  
Linum Usitatissimum ◽  
Yield Loss ◽  
Seed Quality ◽  
Frost Damage ◽  
Glufosinate Ammonium ◽  
Linum Usitatissimum L ◽  
Damage Seed ◽  
Plant Samples

The desiccants diquat, glufosinate-ammonium, dimethipin and glyphosate were applied to flax when 44–84% of the capsules were green to reduce damage from subsequent frost. Beginning 3 d after desiccant application, plant samples were taken at 2–4 d intervals and exposed to a temperature at −20 °C overnight. Diquat application gave the most promising results, reducing the proportion of discolored seed and sometimes reducing loss of germinability, while resulting in a small yield loss compared with freezing of untreated plants. Key words: Flax, Linum usitatissimum L., desiccants, frost damage, seed quality, germination

Lightning flax

2003 ◽  
Vol 83 (1) ◽  
pp. 89-91 ◽  
Author(s):  
S. D. Duguid ◽  
E. O. Kenaschuk ◽  
K. Y. Rashid
Keyword(s):  
Key Words ◽  
Linum Usitatissimum ◽  
Oil Content ◽  
Oil Quality ◽  
High Yield ◽  
Research Station ◽  
Lodging Resistance ◽  
Linum Usitatissimum L ◽  
Melampsora Lini ◽  
Cultivar Description

Lightning, a medium-late maturing oilseed flax (Linum usitatissimum L.) was released in 2001 by Agriculture and Agri-Food Canada, Morden Research Station, Morden, Manitoba. This cultivar has high oil content, high oil quality, large seed size, good lodging resistance and high yield when seeded in the Black, Brown and Dark Brown soil zones of the prairies. It is immune to North American races of rust caused by Melampsora lini (Ehrenb.) Desmaz, and resistant to wilt caused by Fusarium oxysporum Schlecht. f. sp. lini (Bolley) Snyder & Hansen. Key words: Flax, oilseed, Linum usitatissimum L., cultivar description

Effect of time of swathing and desiccation on plant drying, seed color and germination of flax

1993 ◽  
Vol 73 (4) ◽  
pp. 1001-1007 ◽  
Author(s):  
G. H. Gubbels ◽  
D. M. Bonner ◽  
E. O. Kenaschuk
Keyword(s):  
Seed Germination ◽  
Key Words ◽  
Linum Usitatissimum ◽  
Field Studies ◽  
Seed Color ◽  
Glufosinate Ammonium ◽  
Linum Usitatissimum L ◽  
Plant Components

In field studies conducted between 1988 and 1990, flax (Linum usitatissimum L.) was swathed or desiccated with diquat, glufosinate-ammonium or glyphosate at various times between the 0 and 100% brown capsule stages to determine the effects on drying of plant components, seed discoloration and germination. Leaf and capsule browning were complete about 1 wk after application of diquat and glufosinate-ammonium and about 2 wk after application of glyphosate. Stem browning was variable from one application to another, but was usually adequate for harvesting 1–2 wk after application of diquat and glufosinate-ammonium and 3 to 4 wks after application of glyphosate. Diquat gave the most rapid stem browning and glyphosate the slowest. In most cases, swathing and application of diquat or glufosinate-ammonium resulted in capsule moisture low enough for harvest 2 wks after treatment. Drying of capsules following glyphosate application was less rapid. Early applications of glufosinate-ammonium sometimes resulted in darker brown seed. Glyphosate applied before all capsules were mature reduced seed germination. Key words: Flax, Linum usitatissimum L., swathing, desiccation, seed color, germination

Frost tolerance of maturing flax

1993 ◽  
Vol 73 (1) ◽  
pp. 167-170
Author(s):  
D. M. Bonner ◽  
G. H. Gubbels ◽  
E. O. Kenaschuk
Keyword(s):  
Key Words ◽  
Linum Usitatissimum ◽  
Frost Damage ◽  
Frost Tolerance ◽  
Immature Seed ◽  
Laboratory Studies ◽  
Linum Usitatissimum L ◽  
Considerable Damage

In field and laboratory studies, frost damage to immature flax (Linum usitatissimum L.) increased as temperatures fell below −2 °C. In general, considerable damage occurred where temperatures dropped to the −3 to −5 °C range for immature seed, −4 to −5 °C for leaves, pedicels and capsule tissue, and −6 to −7 °C for stems. Key words: Flax, Linum usitatissimum L., frost tolerance

Linola™ '1084' low-linolenic acid flax

1999 ◽  
Vol 79 (4) ◽  
pp. 607-609 ◽  
Author(s):  
J. C. P. Dribnenki ◽  
S. F. Mceachern ◽  
A. G. Green ◽  
E. O. Kenaschuk ◽  
K. Y. Rashid
Keyword(s):  
Key Words ◽  
Linolenic Acid ◽  
Fusarium Wilt ◽  
Linum Usitatissimum ◽  
Oil Content ◽  
Linum Usitatissimum L ◽  
Cultivar Description ◽  
Low Linolenic Acid ◽  
Low Linolenic ◽  
Moderately Resistant

LinolaTM '1084' is a yellow seeded, low-linolenic acid (solin) flax (Linum usitatissimum L.) cultivar. It is higher yielding than LinolaTM '989' and LinolaTM '947' and has higher oil content and lower total saturated fats than LinolaTM '989' and LinolaTM '947'. It is immune to North American races of rust and is moderately resistant to Fusarium wilt. Key words: Flax, low linolenic acid, cultivar description, solin

Hepatoprotective activity and standardization of the bioactive lignan fraction of Linum usitatissimum L.

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
H El-Askary ◽  
S El Zalabani ◽  
RS El-Din ◽  
MY Issa ◽  
RR Hegazy ◽  
...  
Keyword(s):  
Linum Usitatissimum ◽  
Hepatoprotective Activity ◽  
Linum Usitatissimum L
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