Impact of production practices on fiber yield of oilseed flax under Canadian prairie conditions

Irvine, R. B.; McConnell, J. T.; Lafond, G. P.; May, William E.; Hultgreen, G.; Ulrich, A. Cayossi; Stonehouse, K; Chalmers, S.; Stevenson, F. Craig

doi:10.4141/cjps08233

Cited by 14 publications

(7 citation statements)

References 16 publications

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“…The stem accumulated a large amount of P postanthesis, indicating that the stem has strong P demand (more discussion below). Irvine et al (2010) showed that the stems of oilseed flax contained high fiber content. This supports the results of our study to some extent, which found that stem DM and P accumulation in the stem increased by maturity.…”

Section: P Accumulation and Partitioningmentioning

confidence: 99%

Optimizing Phosphorus Fertilization Promotes Dry Matter Accumulation and P Remobilization in Oilseed Flax

et al. 2014

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Improving nutrient management is critical to increase nutrient use efficiency, promote translocation of photoassimilates to sinks, and increase crop yield. In this study, we determined the effects of phosphorus (P) fertilization on dry matter (DM) and P accumulation, partitioning and remobilization from vegetative tissues to the grains in oilseed flax (Linum usitatissimum L.). We hypothesized that P accumulation and remobilization depended on the level of P supply and varied with vegetative tissues. The cultivar Baxuan 3 was sown under low P (LP, 15 kg P ha−1), moderate P (MP, 30 kg P ha−1), and high P (HP, 45 kg P ha−1) conditions along with a zero P control in a randomized complete block design, with three replicates, in 2011 and 2012. At mid‐anthesis, leaf DM (average 1970 kg ha−1) and stem DM (average 1826 kg ha−1) were more than 20 times that of the nongrain reproductive DM (77 kg ha−1); as plants grew to maturity, the DM in the stem and nongrain reproductive parts increased but leaf DM decreased. Compared with the control, oilseed flax grown under the LP, MP, and HP conditions increased leaf DM by 76%, stem DM by 46%, nongrain reproductive DM by 39%, and improved grain yield by an average of 45%. The fertilized oilseed flax increased the P translocation from vegetative tissues to the grains by 150% in 2011 and 201% in 2012. The P content in leaves reached the peak at anthesis and then decreased rapidly to maturity, whereas P contents in the stem and nongrain reproductive parts increased gradually and reached the peak at maturity, showing that leaves are the major contributor to the grain P, whereas the stem and nongrain reproductive parts are stronger P‐demanding organs in oilseed flax. We suggest that advanced techniques, such as 32P labeling, may be used to further quantify the amount of P remobilized from the stems and nongrain reproductive parts to the grain.

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Section: P Accumulation and Partitioningmentioning

confidence: 99%

Optimizing Phosphorus Fertilization Promotes Dry Matter Accumulation and P Remobilization in Oilseed Flax

et al. 2014

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“…Both types can serve as feedstock for the production of biomass energy in the biofuel industry (Naik et al, 2010 ). Most varieties are either oilseed or fiber types as opposed to dual purpose (Deyholos, 2006 ) but the intermediate type opens the door for development of a true dual purpose flax (Irvine et al, 2010 ) where both stems and seeds have commercial outcomes (You et al, 2016b ).…”

Section: Introductionmentioning

confidence: 99%

Genetic Variability of 27 Traits in a Core Collection of Flax (Linum usitatissimum L.)

et al. 2017

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Assessment of genetic variability of plant core germplasm is needed for efficient germplasm utilization in breeding improvement. A total of 391 accessions of a flax core collection, which preserves the variation present in the world collection of 3,378 accessions maintained by Plant Gene Resources of Canada (PGRC) and represents a broad range of geographical origins, different improvement statuses and two morphotypes, was evaluated in field trials in up to 8 year-location environments for 10 agronomic, eight seed quality, six fiber and three disease resistance traits. The large phenotypic variation in this subset was explained by morphotypes (22%), geographical origins (11%), and other variance components (67%). Both divergence and similarity between two basic morphotypes, namely oil or linseed and fiber types, were observed, whereby linseed accessions had greater thousand seed weight, seeds m−2, oil content, branching capability and resistance to powdery mildew while fiber accessions had greater straw weight, plant height, protein content and resistance to pasmo and fusarium wilt diseases, but they had similar performance in many traits and some of them shared common characteristics of fiber and linseed types. Weak geographical patterns within either fiber or linseed accessions were confirmed, but specific trait performance was identified in East Asia for fiber type, and South Asia and North America for linseed type. Relatively high broad-sense heritability was obtained for seed quality traits, followed by agronomic traits and resistance to powdery mildew and fusarium wilt. Diverse phenotypic and genetic variability in the flax core collection constitutes a useful resource for breeding.

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“…2002; Diederichsen & Ulrich 2009; Irvine et al . 2010). Without needing to satisfy textile quality standards, fibre yield as a by-product could integrate with linseed cultivation income, thus making the crop more attractive to Italian growers.…”

Section: Introductionmentioning

confidence: 99%

Linseed as a dual-purpose crop: evaluation of cultivar suitability and analysis of yield determinants

et al. 2018

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Linseed is enjoying renewed popularity worldwide thanks to emerging market opportunities for raw material derived from seeds and stems. The dual-purpose cultivation is particularly attractive to growers for its capacity to yield both seed/oil and straw/fibre; however, field-based research is necessary to identify suitable cultivars to meet modern production goals. Under these premises, a 3-year experimental campaign was conducted to evaluate 18 linseed cultivars potentially interesting for dual-purpose cultivation in Northern Italy. Cultivar performance was evaluated in terms of seed, straw and fibre yield, oil composition and stem fibre content. Inter-annual weather variability explained the largest portion of the total variance. However, the ‘cultivar × year’ interaction was not significant except for seed oil content and composition. Stability analysis showed that at least half of the cultivars were unstable for oil content and α-linolenic acid fraction. A Structural Equation Model was developed to investigate causal relationships between the productive performance and factors such as environmental variables, phenological traits, plant size and density. Rainfall was beneficial to seed yield, both before and after flowering, whereas higher post-flowering air temperature had a depressive effect. A higher oil content was favoured by pre-flowering rainfall. Plant height was negatively associated with seed yield and oil content, but it was positively associated with straw and fibre yield. Plant density was critical for fibre yield since below 500 plants/m2 the increased plant branching makes it difficult to extract fibre. Together with plant density, plant height could be used to manipulate the seed/straw ratio according to production goals.

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Impact of production practices on fiber yield of oilseed flax under Canadian prairie conditions

Cited by 14 publications

References 16 publications

Optimizing Phosphorus Fertilization Promotes Dry Matter Accumulation and P Remobilization in Oilseed Flax

Optimizing Phosphorus Fertilization Promotes Dry Matter Accumulation and P Remobilization in Oilseed Flax

Genetic Variability of 27 Traits in a Core Collection of Flax (Linum usitatissimum L.)

Linseed as a dual-purpose crop: evaluation of cultivar suitability and analysis of yield determinants

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