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

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

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

scholarly journals Influence of Heavy Metals on Seed Germination, Shoot Length, Root Length and the Profiling of Antioxidant Activity of Linum Usitatissimum L.

2021 ◽  
Vol 16 (3) ◽  
Author(s):  
Atal Bihari Bajpai ◽  
Pallavi Dheer ◽  
Manish Dev Sharma ◽  
Rajesh Rayal ◽  
Indra Rautela
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Seed Germination ◽  
Linum Usitatissimum ◽  
Metal Toxicity ◽  
Shoot Length ◽  
Oilseed Crop ◽  
Current Experiment ◽  
Linum Usitatissimum L ◽  
Cu Stress

Being an important oilseed crop, flaxseed (Linum usitatissimum L.) grows mostly in temperate climates. The present study involved the seeds and seedlings of the flaxseed plant for analysis. The current experiment was carried out to determine the effect on seed germination, seedling growth and the antioxidant profiling of the plant when treated with heavy metal exposures. The heavy metals selected for the study were Zinc (Zn), Lead (Pb), and Copper (Cu). The inhibition caused by these metals varied from day to day as the experimental setup was upto 60 days and the observations started from the 15th day. The plant indicated inhibition on seed germination highest with Cu stress. The highest effect of heavy metal on reduced growth of shoot and root was exhibited by Pb and Cu stress. Also, when the antioxidant profiling was done, Zn had the most toxic effect on phytochemicals. The conclusions divulged that the metal toxicity was as follows: Pb > Cu >Zn.

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

Comparison of linseed (Linum usitatissimum L.) genotypes with respect to the content of polyunsaturated fatty acids

2012 ◽  
Vol 66 (10) ◽  
Author(s):  
Marie Bjelková ◽  
Janka Nôžková ◽  
Katarína Fatrcová-Šramková ◽  
Eva Tejklová
Keyword(s):  
Fatty Acids ◽  
Linoleic Acid ◽  
Linear Dependence ◽  
Linum Usitatissimum ◽  
Oil Content ◽  
Seed Color ◽  
Alpha Linolenic Acid ◽  
Yellow Seed ◽  
Linum Usitatissimum L ◽  
Total Fat

AbstractThe aim of our work was to characterize linseed (Linum usitatissimum L.) genotypes divided into groups with high and low content of alpha-linolenic acid (ALA). Out of 32 linseed genotypes, 68.75 % represented high alpha-linolenic genotypes and 31.25 % were genotypes with low ALA content. Proportional representation of fatty acids was realized according to the norm (Czech Office for Standards, Metrology and Testing, 1994). Oil content was analyzed according to the internal methodology of Agritec Ltd., based on the norm (Czech Office for Standards, Metrology and Testing, 2011). The content of total fat ranged from 36.22 % to 46.35 %, that of ALA from 1.10 % to 65.20 %, and that of linoleic acid (LA) from 11.10 % to 75.00 % in the analyzed seed samples within all groups. The genotypes were divided also according to the seed color and a linear correlation between all three parameters within these groups was observed. Negative linear dependence was confirmed between parameters; ALA and LA content in the groups: high ALA brown seed (p < 0.0001; correlation coefficient (r) = −0.70), and high ALA yellow seed (p < 0.001; r = −0.36). Also, positive linear dependence between the total fat and the LA content in the groups: low ALA brown seed (p < 0.001; r = 0.34); low ALA yellow seed (p < 0.0001; r = 0.62), was found.

scholarly journals Physical and Chemical Mutagenesis in Linum usitatissimum L. to Induce Variability in Seed Germination, Survival and Growth rate traits

2017 ◽  
Vol 7 ◽  
pp. 28 ◽  
Author(s):  
Irfan Ahmad Bhat ◽  
Umar Jan Pandit ◽  
Imtiyaz Ahmad Sheikh ◽  
Zia Ul Hassan
Keyword(s):  
Seed Germination ◽  
Gamma Rays ◽  
Linum Usitatissimum ◽  
Dry Weight ◽  
Chemical Mutagenesis ◽  
High Dose ◽  
X Rays ◽  
Linum Usitatissimum L ◽  
Survival And Growth ◽  
Physical And Chemical

The  studies  of  induced  mutation  in  <em>Linum  usitatissimum</em>  L.  were  performed  by  exposing  the  fully  mature  and  healthy  dry  seeds  to  gamma  rays    at  10  and  15  Kr,  X-rays  at  10  and  15  Kr,  hydroxylamine  (HA)  at  0.1%  and  0.2%,  5-amino  acridine  (AA)  at  0.1%  and  0.2%  doses.  The  observations  were  made  for  seed  germination  %,  survival  %  and  growth  characters  such  as  shoot  length,  root  length  and  dry  weight.  Seeds  treated  with  low  dose  of  mutagens  showed  negligible  effect  while  that  with  the  high  dose  exhibit  significant  effects  on  studied  parameters  as  compared  to  control.  Data  obtained  in  this  study  were  statistically  significant  at  5%  level.  The  results  conclude  that  treatments  of  gamma  rays  and  X-rays  were  less  effective  as  compared  to  those  of  HA  and  AA  treatments.

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

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

Desiccant Evaluations: Late-Season Hairy Nightshade (Solanum sarrachoides) Control and Seed Response

2006 ◽  
Vol 20 (1) ◽  
pp. 37-40 ◽  
Author(s):  
Pamela J.S. Hutchinson ◽  
Brent R. Beutler ◽  
Daniel M. Hancock
Keyword(s):  
Sulfuric Acid ◽  
Seed Germination ◽  
Field Studies ◽  
Glufosinate Ammonium ◽  
Late Season ◽  
Hairy Nightshade ◽  
Solanum Sarrachoides

Field studies were conducted from 2000 to 2003 to determine the effectiveness of potato desiccants for late-season hairy nightshade control and also their effect on hairy nightshade seed germination. Commercial sulfuric acid at 280 L/ha controlled 94 to 99% of the hairy nightshade 1 wk after treatment (WAT) in all years. Diquat at 560 g/ha and glufosinate-ammonium at 420 g/ha provided at least 93% control 1 WAT in all years except 2003 when control did not exceed 72%. By 3 WAT, hairy nightshade control ranged from 93 to 100% for all treatments, including carfentrazone-ethyl at 56 g/ha, diquat at 420 g/ha, paraquat at 530 g/ha, and sulfuric acid (proprietary process) at 280 L/ha. Treatment of plants with desiccants did not affect germination of hairy nightshade seed, with the exception of a 7% reduction in germination by the higher rate of diquat in 2001 and 2002.

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