scholarly journals Phytohormonal activity of lactone-structure brassinosteroids under chemical stress in plants

2021 ◽  
Vol 66 (2) ◽  
pp. 186-193
Author(s):  
K. R. Kem ◽  
N. A. Laman ◽  
N. A. Kopylova ◽  
V. A. Khripach
Keyword(s):  
Root System ◽  
Linum Usitatissimum ◽  
Aerial Part ◽  
Spring Barley ◽  
Inhibitory Effect ◽  
Growth Responses ◽  
Hordeum Vulgare L ◽  
Fiber Flax ◽  
Linum Usitatissimum L ◽  
Growth Inhibiting

The dependence of the action of lactone-structure brassinosteroids in composition with a growth-inhibiting dose of glyphosate on the root system and the aerial part of fiber flax (Linum usitatissimum L.) and spring barley (Hordeum vulgare L.) seedlings was determined. The species specificity of growth responses to seed incrustation by such mixtures was identified. The concentration ranges of brassinosteroids, in which their interaction with the herbicide is most pronounced, were detected. In this case, there is an increase (on spring barley seedlings) or weakening (on fiber flax seedlings) of the inhibitory effect of glyphosate on the root system.

scholarly journals Effect of epibrassynolide on the flavonoids content in plant sprouts under stress caused by N-phosphonomethylglycine

2021 ◽  
Vol 66 (3) ◽  
pp. 277-281
Author(s):  
K. R. Kem ◽  
N. A. Laman
Keyword(s):  
Hordeum Vulgare ◽  
Linum Usitatissimum ◽  
Aerial Part ◽  
Spring Barley ◽  
Inhibitory Effect ◽  
Species Specificity ◽  
Chemical Stress ◽  
Fiber Flax

The effect of epibrassinolide (EBL) on the content of flavonoids in seedlings of fiber flax (Linum usitatissimum L.) and spring barley (Hordeum vulgare L.) under chemical stress caused by N-phosphonomethylglycine (glyphosate) was studied. The species specificity of the response of the seedlings to the introduction of EBL in a mixture with an inhibitory dose of glyphosate was noted. This specificity is expressed in the suppression of the inhibitory effect of glyphosate on the flavonoids' content in the tissues of fiber flax and the absence of changes in the level of the content of flavonoids in the roots and aerial part of spring barley seedlings.

MAGNETISM AND PLANT GROWTH: I. EFFECT ON GERMINATION AND EARLY GROWTH OF CEREAL SEEDS

1963 ◽  
Vol 43 (4) ◽  
pp. 513-518 ◽  
Author(s):  
U. J. Pittman
Keyword(s):  
Magnetic Field ◽  
Avena Sativa ◽  
Linum Usitatissimum ◽  
Triticum Aestivum L ◽  
Early Growth ◽  
Growth Responses ◽  
Hordeum Vulgare L ◽  
Linum Usitatissimum L ◽  
Secale Cereale L ◽  
Lines Of Force

Seeds of Chinook wheat (Triticum aestivum L.), Compana barley (Hordeum vulgare L.), Victory oats (Avena sativa L.), common fall rye (Secale cereale L.), and Redwood flax (Linum usitatissimum L.) germinated faster and grew more in 48 hours when they were oriented longitudinally parallel to the lines of force in a magnetic field than when orientated horizontally at right angles to those lines of force. Growth responses of approximately the same nature and magnitude were obtained when the orientation treatment during germination was relative to the direction of the lines of force of either the geomagnetic or an introduced magnetic field.

scholarly journals Fiber cell development and fiber yield of flax (Linum usitatissimum L.) affected by the seasonal temperature pattern

2015 ◽  
Vol 95 (6) ◽  
pp. 1215-1220 ◽  
Author(s):  
Guang-Hui Du ◽  
Fei-Hu Liu ◽  
Gordon Rowland
Keyword(s):  
Linum Usitatissimum ◽  
Cell Development ◽  
Fiber Cell ◽  
Temperature Pattern ◽  
Seasonal Temperature ◽  
Fiber Flax ◽  
Fiber Cells ◽  
Linum Usitatissimum L ◽  
Fiber Yield ◽  
Favorable Temperature

Du, G.-H., Liu, F.-H. and Rowland, G. 2015. Fiber cell development and fiber yield of flax (Linum usitatissimum L.) affected by the seasonal temperature pattern. Can. J. Plant Sci. 95: 1215–1220. Three fiber flax cultivars ‘Ariane’, ‘Argos’ and ‘Viking’ were cultured in growth chambers under three seasonal temperature patterns (STPs) [parabolic (P), anti-parabolic (AP) and quasi-horizontal (QH) configurations]. The effect of STP was studied on fiber cell development and on fiber yield. The results indicated that, compared with the quasi-horizontal seasonal temperature pattern (QH-STP), the size of fiber cell cavity (SFCC) and fiber content (FC) decreased under parabolic seasonal temperature pattern (P-STP). However, the size of fiber cell (SFC) and SFCC decreased, but the number of fiber cells per bundle (NFCB) increased under anti-parabolic seasonal temperature pattern (AP-STP). Moreover, there was a significant positive correlation between fiber weight (FW) and width of fiber bundle (WFB), also between FC and NFCB. Considering the response of fiber flax cultivars to the different STPs, ‘Ariane’ had smaller SFC and SFCC, thinner thickness of fiber cell wall (TFCW) under AP-STP, and smaller SFCC and thicker TFCW under P-STP than under QH-STP, while ‘Argos’ had smaller SFC and SFCC, and higher NFCB under AP-STP, and smaller SFC under P-STP than under QH-STP. However, STPs had little effect on the fiber cell development of ‘Viking’. All three cultivars had high FC under AP-STP than under P-STP. These observations indicate that the fiber cell development and fiber yield of flax were related to the STP and suggest that AP-STP are the most favorable temperature conditions for fiber flax growth.

scholarly journals Plot size related to numbers of treatments, repetitions, and the experimental precision in flax

2019 ◽  
Vol 9 (4) ◽  
pp. 629-636 ◽  
Author(s):  
Alberto Cargnelutti Filho ◽  
Ismael Mario Márcio Neu ◽  
Gustavo Oliveira dos Santos ◽  
Giovani Facco ◽  
Cleiton Antonio Wartha ◽  
...  
Keyword(s):  
Linum Usitatissimum ◽  
Aerial Part ◽  
Block Design ◽  
Soil Heterogeneity ◽  
Fresh Matter ◽  
Heterogeneity Index ◽  
Plot Size ◽  
Linum Usitatissimum L ◽  
Randomized Block Design ◽  
M 12

The aim of this study was determining the optimum plot size to evaluate the fresh matter of aerial part in flax (Linum usitatissimum L.), in scenarios formed by combinations of numbers of treatments, number of repetitions, and precision levels. The fresh matter of aerial part was weighed on 144 basic experimental units of 1.00 m × 1.00 m in uniformity trial with size of 12 m × 12 m (144 m2). It was estimated the soil heterogeneity index of Smith (1938). Also, the optimum plot size was determined by the Hatheway’s method (1961) in scenarios formed by combinations of i treatments (i = 5, 10, 15, and 20), r repetitions (r = 3, 4, 5, 6, 7 8, 9, and 10), and d precision levels (d = 10%, 12%, 14%, 16%, 18%, 20%, 22%, 24%, 26%, 28%, 30%, 32%, 34%, 36%, 38%, and 40%). In experiments planned on randomized block design, with 5 to 20 treatments and four repetitions, plots with 7 m2 are sufficient to identify significant differences between treatments regarding fresh matter of aerial part in flax, at 5% probability, of 34% of the experiment overall mean.

scholarly journals CREATION OF LINUM USITATISSIMUM INITIAL MATERIAL WITH MARKER SIGN – YELLOW-COLORED SEEDS

2021 ◽  
Vol 3 (27) ◽  
pp. 135-143
Author(s):  
V.P. Ponazhev ◽  
Keyword(s):  
Seed Yield ◽  
Linum Usitatissimum ◽  
Seed Weight ◽  
Seed Mass ◽  
Point Of View ◽  
Breeding Value ◽  
Initial Material ◽  
Standard Variety ◽  
Fiber Flax ◽  
Linum Usitatissimum L

Creation of the initial material of fiber flax (Linum usitatissimum L.) with marker signs is a promising direction of breeding, which determines the efficiency of breeding varieties with improved properties. The purpose of the research was to create initial flax material for obtaining seeds with a marker sign (yellow color) and increased weight. The studies were carried out at the Federal Research Center for Bast Fiber Crops in 2015–2018. In our work, we used flax varieties ‘Smolich’, ‘Antey’, ‘C-108’, as well as forms obtained from these varieties. These varieties were used as control. Nurseries were laid under conditions of a leveled agricultural background. Seeds were sown in a square way (2.5×2.5 cm). The experiments were conducted according to the current methods, including phytopathological testing. Soil – sod-podzolic, medium loamy, cultivated. Selyaninov Hydrothermal Coefficient (HTC) in 2015 was 1.3; in 2016 – 2.2; in 2017 – 1.8; in 2018 – 1.3. During the flax plants selection, we obtained three forms with yellow-colored seeds. Yellow-seeded form No. 1 was valuable from the breeding point of view. It exceeded standard variety ‘Smolich’ in seed weight by 0.8 mg (16.0%), in seed yield – by 0.06 t/ha (9.8%). Form No. 1 belongs to the improved fiber flax line. Form No. 3 had a higher seed mass (5.6 mg) compared to standard variety ‘C-108’. In terms of seed yield and 1000-seed weight, this form exceeded the standard by 0.08 t/ha or 14.8% and 0.49 g or 10.6%, respectively. Form No. 3 is a breeding material for creating varieties of bilateral use. Form No. 2 had signs of the oil flax line. It exceeded standard variety ‘Antey’ in seed yield by 0.18 t/ha (40%); 1000-seed weight – by 0.53 g (11.2%). The created material has a breeding value. It was transferred to the bioresource collection of flax for its replenishment, to the bank of the characteristic collection and was additionally included in the breeding process.

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