Temat: laboratory germination

Skocz do pozycji: 1.

Tytuł:: Study of Sowing Quality of Soybean Seeds Depending on Pre-Sowing Treatment of Seed
Autorzy:: Petrychenko, Vasyl
Korniychuk, Oleksandr
Lykhochvor, Volodymyr
Kobak, Svitlana
Pantsyrev, Oleksandr
Tematy:: soybean
climate change
seed moisture
germination energy
laboratory germination
hypocoty; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/59114397.pdf Link otwiera się w nowym oknie
Opis:: Comprehensive assessment of sowing qualities of soybean seeds after pre-sowing treatment of seeds with biological preparations is a scientifically valuable and urgent problem of today, which made it possible to choose the optimal methods of realizing the genetic potential of productivity of modern soybean varieties. In laboratory and vegetation conditions, the sowing properties of soybean seeds were evaluated under pre-sowing seed sterilization. The aim of the research was to establish the sowing qualities of soybean seeds (varieties Slavna, Churaivna, Azymut, Tytan, Triada, Pallada, Samorodok), namely seed moisture, germination energy, f ield germination and linear hypocotyl parameters depending on the varietal composition and pre-sowing seed treatment with a bacterial preparation. Field and laboratory studies were conducted according to the following indicators: seed moisture, germination energy, field germination and linear hypocotyl parameters according to generally accepted methods. Research on the basis of the scientific research field of the Institute of Fodder and Agriculture of the Podillia National Academy of Sciences by the method of split plots in four repetitions according to the methodology of research in agronomy, p. Bohonyky, Vinnytsia region, Ukraine. It was established that the moisture content of the seeds of soybean varieties during 2020–2023 storage in uncontrolled climate conditions was within the normal range and did not exceed 13.4%. It was noted that the use of pre-sowing treatment of seeds with a bacterial preparation based on strains of nodule bacteria had a smaller effect on laboratory germination, and to a greater extent on the germination energy of soybean seeds. The maximum indicator was obtained on the Slavna soybean variety–93.4% for the use of nitrogen-fixing bacteria (Rhizoline+Rhizosave) in the presowing treatment of seeds. Laboratory germination had a significant tendency to increase up to 96.3–98.1% in variants with Svavna and Tytan varieties for the use of nitrogen-fixing bacteria (Rizolain+Rhizosave) in the presowing seed treatment. Based on the obtained results, in order to stimulate the germination of soybean seeds, it is proposed to bacteriize them with complex inoculants, which is a more effective measure than inoculation with a monoculture of rhizobia. In the conditions of the Right Bank Forest-Steppe, in the variants where a bacterial preparation (Rizolain+Rhizosev) was used for pre-sowing seed treatment, the mentioned technological methods of growing can be used to improve the technology of growing soybeans.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Sprouting Activity of Oil Flax Seeds after Treatment with a Preparation Made of Bottom Ash and Technical Carbon
Autorzy:: Khusainov, Abilzhan
Skipin, Leonid
Kyzdarbekova, Gulmira
Khusainova, Razia
Kakabaev, Anuar
Tematy:: oil flax
preparation
bottom ash
technical carbon
laboratory germination
roots
mesocotyl
heavy metals; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/125105.pdf Link otwiera się w nowym oknie
Opis:: The article provides the results of studying the effect of 0.1, 1.0, 2.5, 5.0, 7.5, and 10% aqueous suspensions of bottom ash and technical carbon on the germination vigor of the seeds of oil flax and the environmental safety of its use in terms of the content of heavy metals. Laboratory experiments were performed at the environment lab, field experiments – at the experimental field of the Kokshetau State University n.a. S. Ualikhanov. The laboratory germination vigor of the seeds, the length of seedlings, and the mesocotyl were determined according to the Interstate Standard Agricultural Seeds GOST 12038–844. In the field experiment on studying dosages of introducing the drug, the content of heavy metals was determined by the method of stripping voltammetry. The preparation is a mixture of bottom ash and technical carbon in the ratio of 2:1. It has been found that the use of a 5% aqueous suspension of the preparations contributes to increasing the laboratory germination to 97.0% (88% in the reference), the length of the mesocotyl to 80 mm (55 mm in the reference), the length of roots to 79 mm, and the weight of germinated seeds to 1.6 grams (in the reference, these values were 46 mm and 0.6 g, respectively). After the introduction of the preparation made of bottom ash and technical carbon at the dosages of 100, 200, 300, 400, and 500 kg/ha, the content of heavy metals insignificantly increases, compared to the reference, but does not exceed the permissible levels in the soil, in the stalks, and in the grains of oil flax; that is, the introduction of the preparation into the soil at the dosages of 100 – 500 kg/ha is ecologically safe. The experimental data have shown that the maximum effect is ensured by pre-sowing treatment of oil flax seeds with a 5% solution of aqueous suspension made of bottom ash and technical carbon, where the laboratory germination capacity of the seeds increased by 10.2%.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Agrobiological Assessment of Methods and Regimes of Combine Harvesting of Oil Flax in the Conditions of Southern Steppe of Ukraine
Autorzy:: Zhuykov, Oleksandr
Ivaniv, Mykola
Sydiakina, Olena
Vozniak, Viktor
Tematy:: oil flax
pre-harvest desiccation
combine harvesting method
yield
seed oil content
laboratory similarity
germination Energy; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/59113997.pdf Link otwiera się w nowym oknie
Opis:: The article presents the results of two-year research on the dependence of a complex of quantitative and qualitative indicators of oil flax seed yield of Southern Night and Vodohray varieties, as well as seed sowing conditions on the methods and regimes of combine harvesting of the crop. The direct single-phase method of combine harvesting did not lag behind the control in terms of seed productivity per plant or M1000 indicator. Harvesting according to the two-phase scheme had a significant negative impact on the formation of these indicators: the M1000 indicator decreased by 0.5 g or 7.1% compared to the control, and the seed mass per plant decreased by 0.06 g or 15.4%. Pre-harvest desiccation in the single-phase method also negatively affected the formation of these indicators: when using Reglone Super, the M1000 indicator decreased by 0.7 g, Roundup by 1.0 g compared to the control; seed productivity per plant decreased by 0.07 and 0.1 g, respectively. The oil flax yield with direct single-phase harvesting was lower than the control by 0.03 t/ha or 2.1% (Southern Night variety) and by 0.04 t/ha or 3.0% (Vodohray variety). Additional desiccation of crops significantly reduced seed yield. When using Reglone Super desiccant, this reduction was 0.06–0.09 t/ha (4.5–6.4%), Roundup–0.10–0.13 t/ha (7.5–9.2%). The two-phase harvesting method yielded lower seed yield compared to the control by 0.10 t/ha (7.1%) when growing the Southern Night variety and by 0.08 t/ha (6.0%) when growing the Vodohray variety. The oil content of seeds of both flax varieties did not differ from the control with single-phase harvesting. Desiccation of crops during single-phase harvesting led to a significant decrease in crude fat content in seeds–by 0.7–0.9% (Southern Night variety) and 0.5–0.9% (Vodohray variety). Two-phase harvesting when growing the Southern Night variety contributed to a decrease in seed oil content by 0.5%, while it did not affect this quality indicator when growing the Vodohray variety. Laboratory germination similarity and energy reached maximum values in the control and in variants of direct singlephase harvesting without desiccation of crops–96.2 and 88.5–88.7%, respectively. Other studied methods and regimes of harvesting worsened the sowing conditions of oil flax seeds.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Germination, alpha-, beta-amylase and total dehydrogenase activities of Amaranthus caudatus seeds under water stress in the presence of ethephon or gibberellin A3
Autorzy:: Bialecka, B
Kepczynski, J.
Tematy:: Amaranthus caudatus
seed
germination
alpha-amylase activity
beta-amylase activity
dehydrogenase activity
water stress
ethylene
gibberellin A3
polyethylene glycol
ethephon
water deficit
laboratory condition
plant
environmental stress; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/19888.pdf Link otwiera się w nowym oknie
Opis:: Amaranthus caudatus L. seed germination was studied under different levels of water deficit induced by PEG 6000 in laboratory conditions. PEG at osmotic potentials -0.2 to -0.3 MPa at 24°C in darkness delayed germination and reduced final germination percentage. PEG solutions at osmotic potential lower than -0.3 MPa almost totally blocked seed germination. Ethephon was much more effective than GA3 in reversing PEG-caused inhibition of A. caudatus seed germination. PEG decreased α-amylase activity after 14 h incubation. It decreased β-amylase activity after 14 and 20 h, and caused an increase in total dehydrogenase activity only after 20 h of incubation. Unlike GA3, ethephon increased α-amylase activity in seeds after 12 and 14 h of incubation under water deficit. After 20 h of incubation there was no difference in α-amylase activity in any of the treatments. Neither ethephon nor GA3 affected the activity of β-amylase and dehydrogenase.
Dostawca treści:: Biblioteka Nauki

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