scholarly journals Передпосівна обробка насіння як елемент управління продуктивним потенціалом пшениці озимої

Author(s):  
М. М. Маренич

Наведені результати досліджень використання протруйників та гуматів для передпосівної обробки насіння.  Встановлено, що додавання гуматів у суміші з протруйниками закономірно підвищувало показники польової схожості та кількості вузлових коренів порівняно з контролем. Середньорічні показники свідчать про закономірний вплив застосування стимуляторів на скорочення періоду «сівба–сходи», проте за несприятливих умов проростання застосування стимуляторів може відігравати дуже важливу роль для отримання дружних сходів. У випадку застосування гуматів польова схожість насіння зросла на 11–13 %. За несприятливих умов, що склалися на період проростання дія факторів посилювалася і збільшувався вплив таких взаємодій як «попередники–сорт» та «сорт–варіант обробки насіння». Утворення вузлових коренів також істотно залежало від варіанту обробки насіння. Найкращим показником характеризувався варіант досліду, де використовувався «1R Seed treatment», що в подальшому значною мірою вплинуло на формування врожайності. У всіх проведених дослідах відзначали позитивний вплив застосування для обробки насіння стимуляторів «Гуміфілд» та «1R Seed treatment» як у сумішах з протруйниками, так і у варіантах, де вони використовувалися окремо. The results of studies on the use of disinfectants and humates for presowing seed treatment are presented. It was found that the introduction of humates in a mixture with preservatives naturally increased the field germination and the number of nodal roots compared to the control. Average annual indices testify to the natural effect of the use of stimulants on the reduction of the period of «sowing–shoots», but under adverse conditions of germination the use of stimulants can play a very important role in obtaining amicable shoots. In the case of application of humates, the field germination of seeds increased by 11–13 %. Under unfavorable conditions prevailing during the germination period, the effect of the factors increased and the influence of such interactions as «precursors–grade» and «variety–variant of seed treatment» increased. The formation of nodal roots also significantly depended on the variant of seed treatment. The best indicator was a variant of the experiment, where «1R Seed treatment» was used, which subsequently significantly influenced the formation of yields. In all the experiments conducted, the positive effect of the use of stimulants «Humifield» and «1R Seed treatment» for seed treatment, both in mixtures with disinfectants, and in cases where they were used separately, was noted.

Author(s):  
O. V. Chernikova ◽  
L. E. Ampleeva ◽  
Yu. A. Mazhaisky

Peculiarities of yield formation of maize variety Obskiy 140 the cultivation of it with the use of selenium nanoparticles of an optimum concentration. The experiment was carried out in soil culture in 3-fold repetition. Agrochemical parameters of soil: рН 6,2; the КСl humus of 2.6%; P O 204 mg/kg and K O 219 mg/kg soil. Four variants of the experiment were developed: control 1 (dry seeds), 2 5 2 control 2 (soaking seeds in water), NP Se inlay (semi-dry etching) and NP Se soaking (30 minutes before sowing at the rate of 0,1 g/ha of NP selenium). In the experiments, NP Se containing 3,7 mg of nanopreparation Se in 1 liter of water was used. The positive effect of selenium nanoparticles on the growth processes of maize seeds: germination, germination energy, growth force is shown. Se NP seed treatment increases germination energy by 6,90 and 9,13%, laboratory germination by 4,67 and 8,34%, growth strength by 26,32 and 31,05%, respectively, control 2 (soaking in water) and control 1 (dry change). Under adverse conditions, the use of selenium nanoparticles increases the growth of plants in height. Positive effect on the accumulation of starch in corn grains inlay NP Se, and soaking in this drug increases the content of protein fractions. The greatest increase in the yield of dry corn phytomass provides soaking seeds with selenium nanoparticles, which is caused by an increase in the yield of green corn mass.


2019 ◽  
Vol 41 (1) ◽  
pp. 33
Author(s):  
Mounir Louhaichi ◽  
Sawsan Hassan ◽  
Ali Mekki Missaoui ◽  
Serkan Ates ◽  
Steven L. Petersen ◽  
...  

Direct seeding techniques often result in unsatisfactory outcomes in rangeland rehabilitation, primarily because of low seedling emergence and poor establishment. Seed processing techniques aimed at improving seedling emergence have gained interest by pasture managers. The purpose of this study was to investigate the combined effects of bracteole removal and seeding rate on seedling emergence in seven halophytic species: Atriplex halimus, A. canescens, A. leucoclada, A. nummularia, A. lentiformis, Salsola vermiculata and Haloxylon aphyllum under semi-arid conditions in Tel Hadya (Syria). Each of these species was evaluated for seedling emergence under two seed treatments (bracteoles removed and non-removed bracteoles) with three seeding rates (10, 30 and 60 seeds per pot), in a completely randomised block design. The results showed a positive effect of seed treatment on seedling emergence for all studied species. The native A. halimus had the highest emergence percentages whereas the introduced A. mummularia, had the lowest. However, there were no significant effects of seeding rates on seedling emergence. These results showed that bracteole removal could improve germination and seedling emergence, and potentially increase the rate of establishment of the species studied. Therefore, when implementing rangeland rehabilitation projects, bracteole removal needs to be considered. The native S. vermiculata should be recommended for direct seeding in the West Asia and North Africa region given its high seedling emergence, known high palatability, nutritive value, and high auto-regeneration performance.


2017 ◽  
Vol 3 (1) ◽  
pp. 140-144
Author(s):  
A Rokib ◽  
MS Monjil

Effectiveness of six fungicides viz., Provax-200 (Carboxin+Thiram), Bavistin DF (Carbendazim), Dithane M-45 (Mancozeb), Secure (Mancozeb+Fenamidone), Antracol (propineb) and Daconil (Chlorothalonil) were evaluated to improve seed germination and seedling vigour of lentil variety BINA Masur-3. The experiment was conducted in the Green House of Seed Pathology Centre, Bangladesh Agricultural University, Mymensingh. Positive effect of seed treatment with fungicides on seed germination and seedling vigour of lentil was recorded. At 20 DAS, increased seed germination over control was observed in treated seeds with Deconil (10.40%) and Antracol (10.00%) followed by Dithane M-45 (7.20%). Seeds treated with Deconil and Dithane M-45 produced seedlings with higher shoot length, root length and seedling vigour. At 20 DAS, higher percent increased vigour index over control was found in Dithane M-45 (24.64%) and Deconil (22.44%), respectively.Asian J. Med. Biol. Res. March 2017, 3(1): 140-144


10.12737/6537 ◽  
2014 ◽  
Vol 9 (3) ◽  
pp. 107-110
Author(s):  
Гайнанов ◽  
Ilyas Gaynanov ◽  
Сафин ◽  
Radik Safin

The article presents the results of field experience to assess the effectiveness of various formulations for presowing seeds treatment in different varieties of peas. On average for the years of research, the number of nodules on Tan variety (leaflike morphotype) exceeded the index of Varis one (tendriled morphotype). The seed treatment by Rizotorfina had some positive impact on the number of nodules, but the extent of this influence vary greatly, depending on the variety and years of research, and an average increase in the index to the control was 10.7% for Tan variety and 8.7% for the Varis variety. A noticeable effect was to mix Rizotorfina + Albite, a growth of nodules number on leaflike morphotype was 56.2%, and on tendriled one was 56.7%. The positive effect of the mixture Rizotorfina + Planriz was stronger at Varis variety. Cistern-mix with chemical protectants Vial TT reduced the number of nodules on Tang variety, but had a positive impact on this indicator on the Varis one. In 2011 and 2012 Tan variety less amazed by root rot, but in 2013, on the contrary, less disease progression was noted at Varis. The highest productivity of peas over years of research (2.13 t/ha) was provided on Varis variety, at seed treatment by Rizotorfina + Albite mixture. It was found, that the use of cistern-mix of Rizotorfina with Albite drug for presowing seeds treatment can significantly improve the productivity and sustainability of peas to root rot.


2020 ◽  
Vol 222 ◽  
pp. 02008
Author(s):  
Zalina Tarasheva ◽  
Irina Khanieva ◽  
Aliy Boziev ◽  
Takhir Chapaev ◽  
Andemirkan Odizhev

In the foothill zone of the Kabardino-Balkarian Republic in 2013-2015, studies were carried out in order to study the effect of growth regulators and rhizotorfin on the formation of elements of the structure of the chickpea crop. The objects of research were the varieties of chickpeas “Golden Jubilee” and “Privo 1”. The background for testing biological preparations was pre-sowing inoculation of seeds with rhizotorphin based on nitrogen-fixing bacteria and their treatment with microelements (P120K60MoV). The following drugs were used: Albit, Alfastim, Potassium / sodium humate with microelements. The use of growth regulators and rhizotorfin has a positive effect on field germination, the duration of the growing season and the yield of chickpea. The analysis of the data in our studies showed that the cultivation of the chickpea variety “Golden Jubilee” in the foothill zone of the Kabardino-Balkarian Republic is more profitable.


Author(s):  
A. S. Kiselev ◽  
N. A. Popolzukhina ◽  
P. V. Popolzukhin ◽  
Iu. Iu. Parshutkin ◽  
A. A. Gaidar

The paper highlights the effect of inoculation by means of biological specimens on formation of photosynthetic parameters, nodule-forming capacities and yield of pea grain. The authors reveal the varieties which mostly respond to the tillage, effective specimens and methods of their application. The researchers explored two varieties of pea as Omskiy 9 and Omskiy 18 and two biological specimens (risotorphine and ruminatine). The study was conducted in the experimental fields of Omsk agricultural research center in 2016-2017 in the following variants: control (without inoculation), inoculation by means of  risotorphine, inoculation by ruminatine and combined tillage. The researchers observed different meteorological conditions during the research. The experiments and calculations of the experimental data were carried out by means of general methodics. The positive effect of inoculation on increasing of such parameters as leaf surface index and photosynthetic potential is observed. Active symbiotic potential, number and weight of nodules rhizosphere of pea had a maximum value when being treated by biospecimen ruminatine and combined inoculation of seeds by risotorphine and ruminatine. The authors highlight significant positive relationship between photosynthetic and active symbiotic potential. Inoculation influenced the yield of pea varieties in a different way in the years of research. The results of variance analysis showed that conditions of experiment influenced the yield of varieties – 34.4 %, the proportion of inoculation effect was 25.0 % and genotype – 17,3 %. Omsk 18 variety was characterized by the highest rates of photosynthetic and symbiotic activity. Seed treatment with ruminatine and combined inoculation with risotorphine and ruminatine have impact when growing pea in the conditions of southern forest-steppe of Western Siberia.


2020 ◽  
pp. 44-49
Author(s):  
Nikolay Vasilievich Smolin ◽  
Yulia Nikolaevna Nedaiborshch ◽  
Natalya Vasilievna Potapova ◽  
Andrey Sergeevich Saveliev ◽  
Victor Vladimirovich Volgin ◽  
...  

The article discusses the effect of presowing seed treatment by growth regulators and fungicides on the field germination of seeds of two grades of zinnia elegant – Dream and Orange King. Varieties differed in seed germination time. On average, over three years, Zinnia Dream seeds germinated 0.5–1.0 days earlier than Orange King seeds. The treatment of zinnia seeds with an epin-extra growth regulator contributed to the emergence of earlier seedlings. When the seeds were soaked with a solution of this preparation, the plants went through the sprouting phase faster – the period when they are most sensitive to abiotic stresses. Zircon had a weaker effect on the germination rate of zinnia seeds than epin-extra, however, the presence of a prolonged action of this drug in the activation of non-specific resistance of plants to stress factors can also be noted. The one-component disinfectant benorad turned out to be the most passive and did not significantly affect the germination of zinnia. There were no visible signs of manifestation of pathogens in the juvenile period of plants, and its active substance (benomyl) could hardly affect the rate of emergence of seedlings. In contrast to benorad, the two-component protectant vial TrasT had a weak positive effect on the rate of emergence of seedlings, since it included specially introduced anti-stress components.


Biology ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 185
Author(s):  
Gagandip K. Sidhu ◽  
Pham Anh Tuan ◽  
Sylvie Renault ◽  
Fouad Daayf ◽  
Belay T. Ayele

This study examined the expression patterns of antioxidative genes and the activity of the corresponding enzymes in the excess moisture-stressed seedlings of soybean in response to seed treatment with polyamines, spermine (Spm) and spermidine (Spd). At the 4 day after planting (DAP) stage, the excess moisture impaired the embryo axis growth, and this effect is associated with the downregulation of superoxide dismutase (GmSOD1) expression and SOD activity in the cotyledon. Seed treatment with Spm reversed the effects of excess moisture on embryo axis growth partly through enhancing glutathione reductase (GR) activity, in both the cotyledon and embryo axis, although no effect on the GmGR expression level was evident. Excess moisture inhibited the shoot and root growth in 7 DAP seedlings, and this is associated with decreased activities of GR in the shoot and SOD in the root. The effect of excess moisture on shoot and root growth was reversed by seed treatment with Spd, and this was mediated by the increased activities of ascorbate peroxidase (APX), catalase (CAT) and GR in the shoot, and APX in the root, however, only GR in the shoot appears to be regulated transcriptionally. Root growth was also reversed by seed treatment with Spm with no positive effect on gene expression and enzyme activity.


1968 ◽  
Vol 8 (30) ◽  
pp. 81
Author(s):  
IMW Wood

The effect of seed treatment, seed size, incorporated organic matter, and method of shelling on the establishment of peanuts at Katherine, N.T. was studied during two seasons, 1965-66 and 1966-67. Mechanical damage to the seed during machine shelling was one of the main causes of poor establishment : the larger seed was more vulnerable and the smaller grades of mature, well-filled seed may be preferable. Seed treatments that included 'Ceresan' (phenyl mercury acetate) overcame much of the damage caused by machine shelling. It was concluded that the seed treatments gave protection against fungal infection when the testa had been damaged but could not rectify damage to the radicle. Seasonal conditions after sowing were very important in determining the level of establishment, and the relative efficiency of seed treatment was greater under adverse conditions. Incorporated organic matter had no marked effect on establishment, although peanut residue caused a small but significant reduction.


2019 ◽  
Vol 47 (3) ◽  
pp. 995-1000
Author(s):  
Nikolaos KATSENIOS ◽  
Ioannis E. ROUSSIS ◽  
Aspasia EFTHIMIADOU ◽  
Ioanna KAKABOUKI ◽  
Dimitrios BILALIS

Pre-sowing seed treatment techniques of stratification and scarification were used in order to find the most appropriate method to overcome dormancy of wild asparagus (Asparagus acutifolius L.) seeds. An indoor and an outdoor experiment were carried out at the Agricultural University of Athens. For the indoor experiment, the pre-sowing treatments of stratification (fresh and stratified seeds) and scarification (non-scarified, mechanical scarification and chemical scarification with sulfuric acid) were used as the main treatments, and three different temperatures (15, 20 and 25 °C) as sub-treatments. For the outdoor experiment, there were only the treatments of stratification and scarification. The stratification of asparagus seeds was found to have a positive effect on germination and vigor indices compared to non-stratified (fresh) seeds. The highest germination percentage, vigor index I and II were recorded with the stratified seeds that had been mechanically scarified in both indoor and outdoor conditions. The results indicate that just the scarification cannot improve germination of fresh collected seeds of wild asparagus. Stratification increased the germination percentage from 2.7-6.6% to 45.1-75.3%. The mechanical and the chemical scarification had a positive effect on the root length compared to the non-scarified seeds that have been stratified. These pre-sowing treatments can increase the germination percentage and produce vigorous seedlings that can be used to establish plantations of this potential new crop.


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