scholarly journals Research of the spectral characteristics of healthy and fusarium-infected wheat seeds variety Moskovskaya 56 by hyperspectral spectroscopy

2021 ◽  
Vol 285 ◽  
pp. 02016
Author(s):  
Maksim Moskovskiy ◽  
Maksim Litvinov ◽  
Andrey Boiko ◽  
Sergey Maklakov

In this paper, a spectroscopic identification method is considered for determining the maxima and minima of spectral lines to identify pathogenic microflora in grain seeds. The paper presents the justification for the application of the method of hyperspectral imaging, in order to identify the disease fusarium in the seeds of soft winter wheat. Based on the graphs, it can see the general picture of the influence of the disease fusarium on wheat grains. There is a general decrease in the reflectivity of the grain surface. The strongest deviation of spectral lines is observed in the limit from 660 nm to 900 nm.

Author(s):  
S.V. Belik ◽  

The effect of alternariosis of soft winter wheat seeds on sowing qualities is considered: germination energy, laboratory germination and growth strength.


2020 ◽  
Vol 107 (3) ◽  
pp. 79-86
Author(s):  
Z. Bilousova ◽  
◽  
V. Keneva ◽  
Yu. Klipakova ◽  

Sowing quality of winter wheat seeds depending on the component composition of protectants The influence of multicomponent protectants on the sowing quality of winter wheat seeds was studied. It was found that the presowing treatment reduces laboratory germination of seeds. With the statistical analysis the significant negative correlation effect (r = -0.63) of the amount of active ingredients in the protectant composition on the length of the seedling was found. The radicle length (r=-0,17) was weakly dependent on the component composition of protectants. Kantaris had the greatest depressant effect on seed sowing qualities. Keywords: soft winter wheat, multicomponent protectants, presowing treatment, germination, seedlings, radicles.


2008 ◽  
Vol 0 (1(7)) ◽  
pp. 100-105
Author(s):  
О. О. Шовгун ◽  
В. В. Шелепов ◽  
В. М. Лисікова ◽  
С. О. Ляшенко ◽  
С. Л. Чухлєб ◽  
...  

Author(s):  
М. М. Герман ◽  
О. В. Міщенко

Наведено результати досліджень, встановленонайкращу фазу стиглості зерна пшениці м'якої ози-мої для отримання високоякісного насіння. Визначе-но, що основна кількість білка і клейковини в зернісинтезуються до середини молочного стану, у на-ступні фази стиглості зерна продовжується їхнєнакопичення в достатньо зволожені роки до настан-ня повної стиглості, в посушливі – до середини воско-вої стиглості зерна незалежно від попередника, фонуудобрення і норм висіву насіння пшениці м'якої ози-мої. Встановлено, що за сухої теплої погоди та від-сутності опадів під час формування й достиганнязерна добовий приріст маси 1000 зерен значно біль-ший, ніж у роки зі значною кількістю опадів. The results of the studies found the best stage of ripeness soft winter wheat to produce high-quality seed. Determined that the principal amount of protein and gluten in grains synthesized by the middle of the milk, the next phase of ripening grain continues their accumulation in sufficiently moist years before full maturity, in the dry - the middle of ripeness of grain, regardless of its predecessor, background fertilizer and seed rates soft winter wheat seeds. Found that in dry warm weather and lack of rain during the development and ripening of grain daily gain mass of 1000 grains is much larger than in years with high rainfall.


2021 ◽  
Vol 285 ◽  
pp. 02015
Author(s):  
Maksim Moskovskiy ◽  
Stanislav Gerasimenko ◽  
Andrey Boiko ◽  
Sergey Vorobev

The paper presents the research of the spectral lines of healthy and fusarium-infected oat seeds using a hyperspectral imaging system. Hyperspectral images of healthy and diseased kernels were studied using the Specim IQ hyperspectral camera and Albedo 4.0.23 program (for subsequent processing). The spectral diagrams of the horizon (800 nm - 1000 nm) have been determined. They can identify the oat seeds of the ZALP variety which infected with pathogenic microflora by fungi of the genus Fusarium. Variety harvested in the central zone of the Russian Federation.


2021 ◽  
pp. 13-17
Author(s):  
L. Holosna

Goal. To study infection of seeds of winter wheat varieties by «black point» and to establish the phytopathogenic composition of pathogens in the Right Bank Forest-Steppe of Ukraine. Methods. Laboratory — macroscopic analysis was performed according to DSTU 4138-2002, phytopathogenic composition was identified using nutrient medium, statistical analysis of the obtained data — calculation of the degree of pathogen severity, LSD. Results. A collection of 27 varieties of soft winter wheat was studied to determine the degree of seed infection. The highest percentage of infection was found in varieties Vodogray Bilotserkivsky (Ukraine), Adele (Russia), Balitus (Austria), Viglanka (Slovakia), Sefeg-2 (Azerbaijan). The least susceptible to the disease are varieties Daria (Croatia), Bodycek (France), Gratsia Bilotserkivska (Ukraine, Bila Tserkva DSS), Azano (Sweden), Gospodarka (Ukraine), Kozyr (Ukraine), Morozko (Russia), the number of grains with signs of darkening in the embryonic zone for these varieties did not exceed 1%. The sowing qualities of the diseased seeds were determined. The species composition of phytopathogens that cause the disease has been established. The phytopathogenic complex of seeds with the «black point» included fungi of the genera Alternaria, Fusarium, Curvularia, Bipolaris, Aspergillus, Acremoniella, Stemphillium, Sordaria and Epicoccum. Most often, the seeds were colonized by fungi of the genus Alternaria Nees. Their share in the years of research was 76.6—83.1%. Conclusions. The infection of seeds of winter wheat varieties by black point under conditions of the Right-Bank Forest-Steppe of Ukraine in 2018—2019 ranged from 0 to 19.8% depending on the variety and year of research. The phytopathogenic complex included 13 species of fungi from 9 genera: Alternaria, Fusarium, Curvularia, Bipolaris, Aspergillus, Acremoniella, Stemphillium, Sordaria, Epicoccum. The part of Alternaria spp. in the years of research was over 75%, the most common species were A. tenuissima and A. infectoria. The percentage of species from other genera was insignificant and did not exceed 4.6%.


Author(s):  
М. М. Герман ◽  
О. В. Міщенко

За результатами наукових досліджень, встанов-лено що застосування передпосівної обробки на-сіння пшениці м’якої озимої бактеріальними речо-винами «Поліміксобактерин» (150 мл/т) та «Діа-зофіт» (150 мл/т), а також сумісної обробки ре-гуляторами росту «Вимпел» (120 мл/т) і «Аґат-25К» (60 г/т), на фоні удобрення N25P25K25, N50P50K50, N75P75K75 підвищує енерґію проростання, лабораторну і польову схожість. За даними науко-вих досліджень встановлено, що використання допосівної обробки насіння регуляторами росту «Вимпел» (120 мл/т) і «Аґат-25К» (60 г/т) за вне-сення добрив N75P75K75 енерґія проростання насіння зросла на 2,7 %, схожість насіння на 1,7 %, вижи-ваність рослин пшениці м'якої озимої збільшується на 10,2 %, бактеріальними препаратами: «Полімі-ксобактерин» (150 мл/т) – на 9,4 %, «Діазофіт» (150 мл/т) – на 9,3 %, що, відповідно, перевищує контроль. According to scientific research, it was found that the use of pre-treatment of wheat seeds of soft winter by bacterial substances polimiksobakteryn (150 ml/t) and diazofit (150 ml/t) and joint processing of growth regulators pennant (120 ml / t) and agate – 25K (60 g/t), against fertilizing N25P25K25, N50P50K50, N75P75K75 provides higher vigor, laboratory and field germination. According to scientific studies it was found that the use of presowing seed by treatment growth regulators Vympel (120 ml/t) and Аgate-25K (60 g/t) by fertilizing N75P75K75 vigor seeds 2.7%, 1.7% seed germination, survival soft winter wheat plants increased by 10.2%; by bacterial drugs: polimiksobakteryn (150 ml/t) –9.4%, diazofit (150 ml/t)  by 9.3% , that exceeds control.       


2012 ◽  
Vol 62 (2) ◽  
pp. 77-82 ◽  
Author(s):  
Sharif Md. HOSSEN ◽  
Megumi YOSHIDA ◽  
Hiroyuki NAKAGAWA ◽  
Hitoshi NAGASHIMA ◽  
Hiroshi OKADOME ◽  
...  

2011 ◽  
Vol 20 (4) ◽  
pp. 315-326 ◽  
Author(s):  
S. SUPRONIENE ◽  
A. MANKEVICIENE ◽  
G. KADZIENE

A two-factor field experiment was carried out at the Lithuanian Institute of Agriculture during the period 2005-2008. The influence of different tillage and fertilization practices on wheat grain fungal contamination was evaluated. Grain surface contamination and internal grain infection with fungi were quantified using agar tests. Purified colonies were identified using different manuals. A total of 16 fungal genera were identified in spring and winter wheat grains. Alternaria infected 46.3% - 99.9%, Cladosporium 26.9% - 77.8%, Fusarium 0.9% - 37.1%, Penicillium 1.3% - 2.5% of grains tested. Winter wheat grain surface contamination by fungi ranged from 7.2 × 103 to 24.8 × 103 of colony forming units per g of grain (cfu g-1), spring wheat from 14.8 × 103 to 80.3 × 103 cfu g-1. No-tillage increased winter wheat grain infection by Alternaria, Aspergillus and Cladosporium species and total count of cfu g-1 on spring wheat grain surface. High fertilizer rates resulted in an increase in spring wheat grain infection by Fusarium and Penicillium species and total count of cfu g-1 on both spring and winter wheat grain surface.;


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