PERFORMANCE OF PURE AND MIXED STANDS OF FLAX CULTIVARS

1987 ◽  
Vol 67 (3) ◽  
pp. 797-802
Author(s):  
G. H. GUBBELS ◽  
E. O. KENASCHUK
Keyword(s):  
Seed Yield ◽  
Linum Usitatissimum ◽  
Field Experiments ◽  
Mixed Stands ◽  
Linum Usitatissimum L ◽  
Early Maturing

Field experiments were conducted in the 1975 to 1979 seasons to determine the performance of flax (Linum usitatissimum L.) cultivars grown in pure and mixed stands at Morden, Manitoba. The mixtures consisted of tall, late-maturing cultivars blended in various proportions with short, early-maturing cultivars. The blends generally stabilized production by yielding about midway between the yields of the two components grown in pure stands, and thereby resulted in no advantage over growing the components in separate fields. However, when one of the components yielded very poorly in pure stands because of poor emergence, in a blend the stronger component compensated enough to produce an acceptable yield.Key words: Flax, Linum usitatissimum L., blends, seed yield

Combining ability and heterosis studies across environments in linseed (Linum usitatissimum L.)

2011 ◽  
Vol 59 (1) ◽  
pp. 87-102 ◽  
Author(s):  
S. Sood ◽  
N. Kalia ◽  
S. Bhateria
Keyword(s):  
Seed Yield ◽  
Linum Usitatissimum ◽  
Combining Ability ◽  
Yield Components ◽  
Block Design ◽  
Linum Usitatissimum L ◽  
Randomized Block Design ◽  
Component Traits ◽  
Parental Lines ◽  
Fibre Yield

Combining ability and heterosis were calculated for fourteen lines of linseed in a line × tester mating design using twelve lines and two diverse testers in two different environments. The hybrids and parental lines were raised in a completely randomized block design with three replications to investigate seed and fibre yield and their component traits. Genetic variation was significant for most of the traits over environments. Combining ability studies revealed that the lines KL-221 and LCK-9826 were good general combiners for seed yield and most of its components, whereas LMH-62 and LC-2323 were good general combiners for yield components only. Moreover, KL-221 was also a good general combiner for fibre yield. Similarly, B-509 and Ariane were good general combiners for fibre yield and most of its components. Among the specific cross combinations, B-509 × Flak-1 was outstanding for seed yield per plant and B-509 × KL-187 and LC-2323 × LCK-9826 for fibre yield per plant, with high SCA effects. In general, the hybrids excelled their respective parents and the standard checks for most of the characters studied. Based on the comparison of mean performance, SCA effects and the extent of heterosis, the hybrids LC-2323 × LCK-9826 and B-509 × KL-221 appeared to be the most promising for both seed and fibre yield. Other promising combinations were LC-2323 × KL-210 and B-509 × Ariane for seed and fibre yield, respectively. The superiority of LC-2323, LCK-9826, KL-221, B-509 and Ariane as good general combiners was further confirmed by the involvement of these parents in the desirable cross combinations.

Flax (Linum usitatissimum L.) responses to chilling and heat stress on flowering and seed yield

1997 ◽  
Vol 77 (1) ◽  
pp. 97-99 ◽  
Author(s):  
L. V. Gusta ◽  
B. J. O'Connor ◽  
R. S. Bhatty
Keyword(s):  
Heat Stress ◽  
Seed Yield ◽  
Linum Usitatissimum ◽  
Oil Quality ◽  
Oil Composition ◽  
Flowering Stage ◽  
Linum Usitatissimum L ◽  
Flower Yield ◽  
Delayed Flowering ◽  
Chilling Treatment

The effect of a 5 °C chilling treatment at the seedling stage on days to flower, yield and oil quality and quantity was determined for seven cultivars of flax (Linum usitatissimum L.). Three days of chilling delayed flowering in Dufferin, McGregor and NorLin, whereas 5 d of chilling delayed flowering in all cultivars except Andro and Noralta. Seven days of chilling reduced the seed yield of only McGregor, Norlin, NorMan and Vimy. The effect of a 40 °C heat stress at the flowering stage on yield and oil composition was determined for the same seven cultivars. A heat stress of 40 °C for 3 d reduced the seed yield of NorMan, whereas, a 5 d stress reduced the seed yield of all cultivars except McGregor and Noralta. The composition of the oil was not affected by the heat stress. These results suggest genetic variability exists among flax cultivars for tolerance to chilling and heat stresses. Controlled tests can be used to select superior stress tolerant genotypes. Key words: Flax, chilling, heat, flowering, yield

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

AC Watson flax

1998 ◽  
Vol 78 (3) ◽  
pp. 465-466 ◽  
Author(s):  
E. O. Kenaschuk ◽  
K. Y. Rashid
Keyword(s):  
Linum Usitatissimum ◽  
Oil Quality ◽  
Research Centre ◽  
Lodging Resistance ◽  
Linum Usitatissimum L ◽  
Melampsora Lini ◽  
Early Maturing ◽  
Cultivar Description ◽  
Good Yielding ◽  
Moderately Resistant

AC Watson, a medium–early maturing oilseed flax (Linum usitatissimum L.) was released in 1997 by Agriculture and Agri-Food Canada, Research Centre, Morden, Manitoba. The cultivar has high oil quality, medium-large seed size, good lodging resistance, and with good yielding in both early and late seeding in the Black and the Brown Soil zones of the prairies. 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

Prairie Sapphire flax

2013 ◽  
Vol 93 (6) ◽  
pp. 1271-1275 ◽  
Author(s):  
S. D. Duguid ◽  
K. Y. Rashid
Keyword(s):  
Protein Content ◽  
Linum Usitatissimum ◽  
Agronomic Traits ◽  
Research Station ◽  
Linum Usitatissimum L ◽  
Early Maturing ◽  
Meal Protein ◽  
The Cross ◽  
Made In

Duguid, S. D. and Rashid, K. Y. 2013. Prairie Sapphire flax. Can. J. Plant Sci. 93: 1271–1275. Prairie Sapphire, a medium-early maturing oilseed flax (Linum usitatissimum L.), was released in 2009 by Agriculture and Agri-Food Canada, Morden Research Station, Morden, Manitoba. Developed from the cross Macbeth/FP2030 made in 1998, Prairie Sapphire was evaluated in the Flax Cooperative Trials (2005–2007) before being registered in 2009. Prairie Sapphire's desirable combination of agronomic traits with its significantly improved oil and meal protein content should make it a useful cultivar for producers and the flax industry.

DIPLOID, ANEUPLOID AND TRIPLOID PLANTS FROM HAPLOID × DIPLOID CROSSES IN FLAX (LINUM USITATISSIMUM)

1980 ◽  
Vol 22 (4) ◽  
pp. 591-596 ◽  
Author(s):  
Beatrice E. Murray
Keyword(s):  
Seed Yield ◽  
Doubled Haploid ◽  
Linum Usitatissimum ◽  
Low Fertility ◽  
Doubled Haploid Lines ◽  
Linum Usitatissimum L ◽  
Twinning Frequency

Flax (Linum usitatissimum L.) haploids (2n = x = 15), selected from haploid-diploid twin seedlings in the cultivar Rocket 4 and crossed with diploid sibs, differed in boll-set; in frequency of diploid, aneuploid and triploid plants in each F1 family (58, 20 and 22%, respectively); and in frequency of twins in F2 families. The diploid plants of the F1 progeny were fertile and high in seed yield which contrasted with the sterility of the triploids and low fertility, or sterility, of the aneuploids. Twinning frequency and boll-set was stabilized at specific levels in some doubled haploid lines. The advantages of haploid × diploid crosses for genetic experimentation are discussed.

CDC Arras flax

2002 ◽  
Vol 82 (1) ◽  
pp. 99-100 ◽  
Author(s):  
G. G. Rowland ◽  
Y. A. Hormis ◽  
K. Y. Rashid
Keyword(s):  
Linum Usitatissimum ◽  
Oil Quality ◽  
High Yield ◽  
Lodging Resistance ◽  
Linum Usitatissimum L ◽  
Melampsora Lini ◽  
Crop Development ◽  
Early Maturing ◽  
Cultivar Description ◽  
Moderately Resistant

CDC Arras is a medium-early-maturing oilseed flax (Linum usitatissimum L.) developed at the Crop Development Centre, University of Saskatchewan, Saskatoon, Saskatchewan. This cultivar has medium oil content, good oil quality, large seed size, fair lodging resistance and high yield when seeded early in the Black and the Brown Soil zones of the prairies. 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

scholarly journals Studies on Correlation and Path Analysis in Linseed (Linum usitatissimum L.) Over Locations in Mid-hills of North-Western Himalayas

2021 ◽  
Author(s):  
Garima Thakur ◽  
Satish Paul ◽  
Uttam Chandel ◽  
Ronika Thakur
Keyword(s):  
Grain Yield ◽  
Seed Yield ◽  
Linum Usitatissimum ◽  
Seed Weight ◽  
Harvest Index ◽  
Significant Positive Correlation ◽  
Agricultural Research ◽  
Positive Correlation ◽  
Linum Usitatissimum L ◽  
Important Trait

Background: Seed yield is a very important trait for selection but shows low heritability and hence is difficult to improve. Since the productivity of linseed (Linum usitatissimum L.) in India as well as Himachal Pradesh is low in comparison to other major linseed growing countries and states, improvement in cultivars for grain yield is a must. Therefore, the present study was aimed for studying the character associations in linseed genotypes for seed yield over locations. Method: The experiment was conducted during rabi 2019-2020. The experimental material for the present investigation comprised of 52 linseed genotypes grown over three locations in Himachal Pradesh i.e. Linseed Experimental Farm, CSK HPKV, Palampur (1290 m amsl), Shivalik Agricultural Research and Extension Centre, Kangra (700 m amsl) and Hill Agricultural Research and Extension Centre, Dhaulakuan (468 m amsl). Randomized block design with three replications was used. Phenotypic and genotypic correlation coefficients were worked out as per the procedure outlined by Burton and De Vane (1953) and Johnson et al. (1955). Direct and indirect effects of component traits on grain yield were worked out using correlation coefficient of various traits as suggested by Wright (1921) and elaborated by Dewey and Lu (1959). Result: Correlation studies indicated highly significant positive correlation for seed yield with 1000 seed weight (0.965**) followed by harvest index (0.801**), secondary branches (0.585**) and a significant correlation with biological yield (0.269**). Seed yield exhibited a non-significant positive correlation with seeds per capsule. However, a negative significant correlation was observed for seed yield with days to 50 per cent flowering and number of primary branches. The path coefficient analysis indicated that 1000 seed weight exhibited maximum positive direct effect with seed yield (0.741) while others had a low direct effect. The significant positive correlation of number of secondary branches and harvest index with seed yield was mainly due to indirect effect via 1000 seed weight indicating that 1000 seed weight is the most important trait for the improvement of grain yield in linseed as per the present study.

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