scholarly journals Biological Features Of Glycyrriza Glabra L. Growing In The Vicinity Of Termez

2020 ◽  
Vol 02 (11) ◽  
pp. 59-63
Author(s):  
Dzhumaev Khudayberdi Kurbandurdiyevich ◽  
◽  
Fozilov Shershod Musurmonovich ◽  
Keyword(s):  
Seed Germination ◽  
Germination Rate ◽  
Main Root ◽  
Biological Features ◽  
Germination Energy ◽  
The Republic

The article provides data on the aboveground and underground parts of Glycyrrhizaglabra L. Licorice, which grows on the floodplains of the Surkhandarya River (south of the Republic of Uzbekistan). The length of the main root of the plant reaches 104 cm, the diameter is 6.6 cm. The horizontal roots reach up to 103 cm. The seed germination rate is low - 45.7%, the germination energy on the 6th day is 16.7%. The best way to reproduce is vegetative.

scholarly journals Biological features of the Himalayan lilac (Syringa emodi Wall. Ex Royle) during introduction in the Bashkir Cis-Urals

2021 ◽  
pp. 25-30
Author(s):  
N. V. Polyakova
Keyword(s):  
Seed Germination ◽  
Pollen Viability ◽  
Botanical Garden ◽  
Winter Hardiness ◽  
The South ◽  
Biological Features ◽  
Republic Of Bashkortostan ◽  
Beginning Of Flowering ◽  
The Republic

The article presents the results of a long-term (2005-2017) introduction study of Syringa emodi Wall. ex Royle, cultivated in the South Ural Botanical Garden Institute of the UFIC RAS. As a result of phenological observations, it was revealed that S. emodi belongs to the flowering ones in terms of medium flowering - the beginning of flowering is observed on average on the end of May. The duration of flowering is 18-22 days. Pollen viability is lower than that of other types of lilacs in the collection and is 13%. Fruiting annually, the level is slightly lower compared to other species. Seed germination is 82-86%. Winter hardiness is relatively high, only in very severe winters is freezing of annual shoots observed. The total score in the evaluation of decorative characters of S. emodi was 76 points out of 100 possible. For a number of signs, introduction stability was determined by 87 points. The conclusion is made about the successful introduction of S. emodi in the Republic of Bashkortostan and the possibility of widespread use of this species in landscaping settlements in the region.

Moisture level effect on seed longevity of wheat species representatives

2019 ◽  
pp. 121-128
Author(s):  
M.Yu. Skorokhodov ◽  
R.L. Boguslavskyi ◽  
V.S. Lyutenko
Keyword(s):  
Seed Germination ◽  
Moisture Content ◽  
Germination Rate ◽  
Accelerated Aging ◽  
Seed Longevity ◽  
High Plasticity ◽  
Wheat Species ◽  
Seed Moisture Content ◽  
Germination Energy ◽  
Seed Moisture

Аim. To determine the optimum moisture content and comparative longevity of seeds of wheat species accessions for long-term storage according to the results of the “accelerated seed aging” experiment. Results and Discussion. There was estimated seed longevity of the representatives of wheat species Triticum aestivum L., T. spelta L., T. durum Desf., T. dicoccum (Schrank) Schuebl., T. monococcum L., T. sinskajae A. Filat. et Kurk. of three reproduction years – 2014, 2016 and 2017, at three moisture levels – 5 %, 6 % and 7 % in the experiment with accelerated aging. Germination energy and germination rate depended on the year conditions, seed moisture, the interactions year – genotype, year – seed moisture and all three factors: year conditions, seed moisture, genotype (influence power from 16.1 to 20.1). Accelerated aging caused decrease in seed germination energy and germination rate in almost all samples at all three moisture levels. Under the accelerated aging, with an increase in seed moisture content from 5 % to 7 %, on average by the accessions, the seed germination energy (from 83 % to 63 %) and germination rate (from 90 % to 68 %) decreased on samples. At all three moisture levels, relatively high germination energy and germination rate after accelerated aging had T.monococcum (86-95 % and 88-97 %) and Polba 3 (74-96 % and 85-98 %). A low germination energy (66-69 % и 68-77 %) and germination rate showed T.sinskajae UA0300224 (66-69 %) and T.durum Spadschyna (56-75 % и 61-92 %). At all three seed moisture levels, the high plasticity of germination energy had T.sinskajae UA0300224 and T.durum Spadschina, germination rate – T.sinskajae. With all three seed moisture levels, T.sinskajae UA0300224 and T.aestivum Harkivska 26 were characterized by stable germination rate. Conclusions. The highest seed longevity of the studied accessions is provided by moisture of 5%, less but close longevity – the moisture of 6%. The least longevity in three test options had seeds with 7 % moisture content. Among studied accessions of wheat species most longevous seeds had T.monococcum UA0300439 and Polba 3. The seeds of T.sinskajae UA0300224 and T.astivum PI619379 were less longevous.

scholarly journals Seed Germination of Some Flower Species Under Influence of Different Light Conditions

2017 ◽  
Vol 17 (2) ◽  
pp. 183
Author(s):  
Monika Tkalec ◽  
Тijana Mirković ◽  
Mario Mitrović ◽  
Nada Parađiković ◽  
Jasna Kraljičak ◽  
...  
Keyword(s):  
Seed Germination ◽  
Blue Light ◽  
White Light ◽  
Germination Rate ◽  
Dianthus Caryophyllus ◽  
Light Conditions ◽  
Germination Energy ◽  
Significant Difference ◽  
Set Up ◽  
Local Store

The aim of this study was to examine germination energy and seed germination rate of some flower species under influence of different light conditions. Seeds of Zinnia elegans Jacq., Dianthus caryophyllus L. and Callistephus chinensis (L.) Nees that were used in the research were purchased in local store. Experiment was set up in three replicates for each light treatment and each flower species. Petri dishes with seeds were placed in growth chamber under artificial white and blue light under 12hL/12hD photoperiod. Results showed no significant difference in germination energy and total germination of investigated flower species in respect of light. Zinnia seedlings were significantly longer on white light, while Dianthus seedlings were longer on blue light. Both, length and fresh weight of Callistephus seedlings were greater on white light. The absence of significant differences between measured parameters under examined light regimes suggests that germination of Zinnia, Dianthus and Callistephus is not photosensitive.

scholarly journals Some biological features of erva wooly seeds

2020 ◽  
pp. 48-55
Author(s):  
A. A. Korostylev ◽  
L. A. Logvinenko
Keyword(s):  
Seed Germination ◽  
Plant Density ◽  
Germination Rate ◽  
Biological Features ◽  
Germination Period ◽  
The Crimea ◽  
Dry Heating ◽  
Germinated Seeds

Some morphological features and quality of Erva woolly seeds were revealed. The sizes of the seeds of the NBG’s reproduction in 2018 varied within 0.6-0.8 mm, with a mass of 1000 seeds being 0.083-0.086 g. Seeds obtained under the conditions of the Southern Coast of the Crimea are characterized by a long germination period of 22-29 days. Laboratory germination at variable temperatures amounted to 64.3%, field under the condition of surface seeding with rolling 46.7%. Seeds are half-burned according to the I.V. Borisova classification of types of seed germination belong to the second type, a subtype with slow germination and a maximum of germinated seeds in the middle of the germination period. It was established that for the germination of Erva woolly seeds, an air temperature above 20°C is necessary. The lowest seed germination rate was obtained when they were germinated at a constant temperature of 20°C. Dry heating of seeds during the day before sowing had no effect. Seeding of seeds cleared of pericarp to a depth of not more than 1.0 cm results in sparse seedlings in comparison with surface sowing. Sowing seeds with pericarp can provide optimal plant density, both in the conditions of surface sowing and with the incorporation of seeds into the soil.

scholarly journals Investigation effect of the throughput combine on the quality of grain separated by a preliminary threshing device

2019 ◽  
pp. 72-80
Author(s):  
Sheychenko , V. ◽  
Kuzmich, A. ◽  
Dudnikov, I. ◽  
Shevchuk, M.
Keyword(s):  
Seed Germination ◽  
Least Squares Method ◽  
Germination Rate ◽  
Germination Energy ◽  
High Germination ◽  
Combine Harvester ◽  
High Level ◽  
Level Loading ◽  
Experimental Researches ◽  
The Mathematical Model

Purpose. Improving the efficiency of the combine harvester by establishing the effect its throughput (thresher loading) on the quality indicators of the grain separated by a preliminary threshing device. Methods. Experimental researches were carried out using the method planning and conducting single-factor experiments. The processing of experimental results was carried out taking into account the methods by regression analysis. The approximation of the experimental dependencies by the mathematical model was performed using the least squares method using the statistical software package STATISTIKA-6.5. Results. A combined technological process transportation and threshing of grain-straw mass (GSM) was developed, which is based on a preliminary threshing device and takes into account the differences in the interaction of GSM with the device drum bars. The identity the processes change in the energy of germination and seed germination culture germination depending on the level loading for all the considered device options is noted. For each device option, a rational value throughput is established, which corresponds to a high level of germination energy. Conclusions. The highest germination energy level harvested grain is 99% set for a header, the drum of which contains four strips, when the combine thresher is loaded at 7.5 kg/s. For a serial header, a high germination rate of 92% is set when the thresher is loaded at 8.5–9.5 kg/s; for a header with a preliminary threshing device with a whip under the drum at 97% when loading 6–7 kg/s; for a header with a smooth drum 94.0–94.5% with a threshing load of 8–9 kg/s; for the reaper, the drum of which contains two strips about 95% when loading the thresher 3–4 kg/s, respectively. Comparing with the serial, for a header with the four slats drum, a higher 7% level of seed germination has been noted with a slight (1.0–1.5 kg/s) reduction in the capacity of the combine. Keywords: combine harvester, header, device for preliminary threshing of grain, grain-straw mass, germination energy, seed germination.

scholarly journals TEMPERATURE - GERMINATION RESPONSES OF SUNFLOWER (Helianthus annuus L.) GENOTYPES / GERMINACION COMO REACCION A LA TEMPERATURA EN LOS GENOTIPOS DEL GIRASOL (Helianthus annuus L.) / GERMINATION - RÉACTION À LA TEMPÉRATURE DANS LES GÉNOTYPES DE TOURNESOL (Helianthus annuus L.)

Helia ◽  
2000 ◽  
Vol 23 (33) ◽  
pp. 97-104
Author(s):  
F.M. Khalifa ◽  
A.A. Schneiter ◽  
E.I. El Tayeb
Keyword(s):  
Seed Germination ◽  
Helianthus Annuus ◽  
Maximum Rate ◽  
Germination Rate ◽  
Thermal Time ◽  
Large Temperature ◽  
Climatic Zones ◽  
Helianthus Annuus L ◽  
Wide Range ◽  
Cardinal Temperature

SUMMARY Seed germination of six sunflower (Helianthus annuus L.) hybrids was investigated across a range of eleven constant temperatures between 5°C and 45°C. Large temperature differences in germination rate 1/t (d-1), cardinal temperature (°C) and thermal time θ (°cd) were observed among hybrids. Base temperatures (Tb) varied between 3.3°C and 6.7°C whereas maximum germination temperatures (Tm) varied between 41.7°C and 48.9°C. Final germination fraction was attained at 15°C - 25°C whereas the maximum rate of germination was attained at 30.4°C - 35.6°C. The maximum germination rate of hybrid USDA 894, the cultivar with the slowest germination rate, was only 50% of that of hybrid EX 47. The low Tb and high Tm of sunflower appear to be one of the factors which explain the successful adaptation of sunflower to a wide range of temperature. These findings are discussed in relation to the origin of the crop and its wide adaptations in diverse habitats and climatic zones.

scholarly journals Effect of Oak Tree Sawdust Fermentation Period on Peanut Seed Germination, Seedling Biomass, and Morphology

Horticulturae ◽  
2021 ◽  
Vol 7 (7) ◽  
pp. 182
Author(s):  
Junsik Ahn ◽  
Soyeon Oh ◽  
Yang Joo Kang ◽  
KiBum Kim ◽  
Sung-Kwon Moon ◽  
...  
Keyword(s):  
Microbial Community ◽  
Seed Germination ◽  
Germination Rate ◽  
Peanut Seed ◽  
Arachis Hypogaea L ◽  
Vigor Index ◽  
Seedling Biomass ◽  
Oak Tree ◽  
Fermentation Period ◽  
Seedling Characteristics

Peanut (Arachis hypogaea L.) seeds were germinated to investigate the effect of the fermentation period of oak tree sawdust on germination viability and seedling characteristics. Its germination rate, seedling weight, length, and total vigor index were assessed. The seeds were sown in oak tree sawdust fermented for 0, 30, 45, and 60 days. The germination rates of the seeds in fermented sawdust were significantly different. The seeds in the 45-day fermented sawdust produced the heaviest biomass weight (4.6 g) with the longest true leaf (1.7 cm) and hypocotyl (3.4 cm) resulting in the highest total vigor index (925.8). In contrast, seeds in 0-day fermented sawdust had the lowest total vigor index (18.3). Microbiome analysis showed that the microbial community in the sawdust changed as the fermentation progressed, indicating that the microbial community seems to affect seed germination physiology. Taken together, 45-day fermented sawdust is recommended for optimal peanut seed germination and seedling growth.

scholarly journals Raw and Fermented Alfalfa Brown Juice Induces Changes in the Germination and Development of French Marigold (Tagetes patula L.) Plants

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1076
Author(s):  
Döme Barna ◽  
Szilvia Kisvarga ◽  
Szilvia Kovács ◽  
Gábor Csatári ◽  
Ibolya O. Tóth ◽  
...  
Keyword(s):  
Seed Germination ◽  
Tap Water ◽  
Germination Rate ◽  
Ornamental Plants ◽  
Dry Mass ◽  
Water Soluble ◽  
Tagetes Patula ◽  
Root And Shoot Length ◽  
Horticultural Practice ◽  
Brown Juice

Organic and ecological farming programs require new and efficient biostimulants with beneficial properties for the sustainable and safe production of seedlings and ornamental plants. We examined the effect of non-fermented and lacto-fermented alfalfa brown juice (BJ) on seed germination and the vegetative, physiological, and anatomical properties of French marigold (Tagetes patula L. ‘Csemő’) plants which were treated with 0.5–10% fermented and non-fermented BJ, with tap water applied as a control. Applying 0.5% fermented BJ significantly improved seed germination compared with non-fermented BJ, resulting in an increase of 9.6, 11.2, 10.9, and 41.7% in the final germination percent, germination rate index, germination index, and vigor index, respectively. In addition, it increased the root and shoot length by 7.9 and 16.1%, respectively, root and shoot dry mass by 20 and 47.6%, respectively, and the number of leaves by 28.8% compared to the control. Furthermore, an increase in contents of water-soluble phenol, chlorophyll a and b, and carotenoid was reported upon the application of 0.5% fermented BJ, while peroxidase activity decreased. Our results prove that alfalfa BJ can be enrolled as a biostimulant as part of the circular farming approach which supports the sustainable horticultural practice.

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