Diversity of flax characters associated with fibre formation and environmental influence on their formation

Brutch, N. B.; Sharov, I.Ya.; Павлов, А. В.; Porokhovinova, E. A.

doi:10.1134/s2079059711050042

Cited by 10 publications

(10 citation statements)

References 2 publications

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“…When Brutch et al (2011) compared 13 lines, no correlation was found between the diameter of fibres and the stem height (genotypical variation). Thus, ecological regulation (this study) and genotypic relation showed opposite trends within a line (Marylin, this study).…”

Section: Organization and Morphology Of The Stemsmentioning

confidence: 74%

“…Either, consequently to the plant adaptation to drastic environmental conditions, there was a reduction of the division of fibre cells at the level of the meristem or a lack of cellulose deposition (hence of thickening). Such a relationship also existed in the genetic variability (Brutch et al 2011) (R 2 = 0.74).…”

Section: Organization and Morphology Of The Stemsmentioning

confidence: 86%

“…Eden is a variety registered since 2009 and is known for its lodging resistance, whereas TDL25 isn't registered yet (recently selected) and presents a high lodging sensitivity. Flax stems were grown in France (Saint Pierre le Viger, France) in 2009, 2010, 2011and 2012 or 2013 (Eden and TDL25) with almost same densities (around 1500 plants/m 2 ) which corresponds to the conventional density for flax culture (Bert 2013). An original climatic scenario characterized each year.…”

Section: Methodsmentioning

confidence: 99%

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Influence of Stem Morphology and Fibers Stiffness on the Loading Stability of Flax

et al. 2016

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Flax fibers (Linum usitatissimun L.) with good mechanical properties are required to reinforce polymers. This work provides an original method to determine the stiffness of dried or green fibers contained inside the plant. We studied three recent flax varieties (Marylin, Eden and TDL25) with distinct lodging resistances. After mechanical characterization on elementary fibers and morphological analysis on stems, we showed, by flexural tests on green and dried stems, that it was possible to correlate their stiffness with the Young modulus of the elementary fibers as well as their internal organization. This result confirmed the crucial role of fibers in supporting the plant and in particular in the lodging behaviour.

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Section: Organization and Morphology Of The Stemsmentioning

confidence: 74%

Section: Organization and Morphology Of The Stemsmentioning

confidence: 86%

Section: Methodsmentioning

confidence: 99%

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Influence of Stem Morphology and Fibers Stiffness on the Loading Stability of Flax

et al. 2016

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“…Anyway, the earliness of a variety is one of the most important agronomic characters. This species is characterized by wide ranges of total growth duration and the duration of its main phases: from germination till flowering and from flowering till ripening (Brutch et al, 2011). Being a quantitative charac ter, the duration of flax vegetative period is under polygenic control (Brutch, 2011).…”

Section: Introductionmentioning

confidence: 99%

The WF1 (White Flower 1) gene controlling the white color of petals and flowering time in lines from a mapping population of flax (Linum usitatissimum L.)

et al. 2019

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Flax (Linum usitatissimum L.) is grown in different climatic zones as both a spring and winter crop. Adaptation to different growing conditions produced genotypes with different growth durations and degrees of photosensitivity. It was always of great importance for breeders to create varieties with rapid development, in particular, early-flowering ones. The evaluation of lines from the VIR flax genetic collection revealed a wide intraspecific diversity in the duration of growth phases, the number of leaves on the stem (physiological indicator of early flowering), and the degree of photosensitivity. Line gc-109, early flowering under the long-day conditions, but greatly photosensitive, was found to possess the wf1 (white flowers) gene, associated with early flowering and a small number of leaves. This line was crossed to the late-flowering but low-photosensitive line gc-375, which had reddish purple flowers. The analysis of segregation in F 2 held under the long (19 hours) and short (12 hours, daylength at the equator) day conditions showed that the number of leaves on the plant stem was associated with the flowering time and controlled by close genetic systems only under the long-day conditions. In addition, no relationship between the flowering time and petal color was found under the short-day conditions. Thus, different groups of genes are active in different light schedules. More than 200 lines of the 6th generation of inbreeding were obtained from the plants of the hybrid population. Their field testing under the long-day conditions showed that although the majority of the lines with white petals flowered early and had a small number of leaves, some of them bloomed later and were leafier. On the contrary, the early flowering and less leafy lines appeared among the lines with colored flowers. Therefore, it is reasonable to assume that a crossover between the gene participating in the control of early flowering, which came from the gc-109 line, and its wf1 gene occurred in meiosis of F 1. The linkage between the genes controlling early flowering and white petals suggests that flower color can serve as a marker of early flowering in the selection of early breeding material.

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“…One can better understand the mechanism of development by means of traits correlations analyses. The data presented on this topic in bibliography is also very contradictory, which is explained by the heterogeneity of the used plant material (Brutch 2007;Brutch et al 2011). Evaluating the influence of photoperiod on flax stem characters, we also analysed their correlations (Brutch et al 2015).…”

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confidence: 99%

Photoperiod Influence on the Stem Structure of Fibre Flax

Павлов

Nôžková

Šavrtková

et al. 2018

Agriculture (Pol'nohospodárstvo)

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Plants of 13 fibre flax varieties were tested for their photosensitivity and differences of stems structure while grown in long and short daylight. It was detected that seven varieties did not change time of flowering in short 12 hours daylight in comparison with long 19 hours daylight. The extended diversity of fibre flax reactions on photoperiod changes and its relative independence of photosensitivity degree were found. Also, weak but significant correlation was found between photosensitivity coefficient and the degree of leaves number increase (r = 0.57). At the same time photo insensitive variety Belosnezhka improved leaves number up to 34%. Numbers of fibre bundles, their individual and total area on the stem cross section were not changed or reduced. Width, height, perimeter and shape of fibre bundles on a cross sections changed multidirectional. The areas of stem, its wooden part and cavity on a cross section showed no significant differences between plants grown in long and short day conditions. Evaluated flax characters were not strictly correlated with each other except those indicating the structure of fibre bundles. For breeding it is important that their relationships are not strongly influenced by the environment.

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Diversity of flax characters associated with fibre formation and environmental influence on their formation

Cited by 10 publications

References 2 publications

Influence of Stem Morphology and Fibers Stiffness on the Loading Stability of Flax

Influence of Stem Morphology and Fibers Stiffness on the Loading Stability of Flax

The WF1 (White Flower 1) gene controlling the white color of petals and flowering time in lines from a mapping population of flax (Linum usitatissimum L.)

Photoperiod Influence on the Stem Structure of Fibre Flax

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