С. И. Чебаненко | Библиотека ELiS

Seed quality and growth processes at early stages of winter wheat organogenesis depending on their biological treatment

Submitted by Гость (not verified) on Tue, 07/09/2024 - 16:45

The article presents the results of laboratory studies on the effect of biopreparations Humate 7+, Growth Matrix, Ecorost, Azotovite and Phosphatovite on the sowing qualities and growth parameters of terrestrial and underground plant organs of the winter wheat variety Nemchinovskaya 57. The work revealed the stimulating effect of the studied biological compounds on the initial growth processes of seedlings. A significant growth-stimulating effect on root system development was observed. The excess in the root length compared to the control was 0.7–21.0 mm (102–145%).

Detection of the soybean bacterial blight pathogen Pseudomonas savastanoi pv. Glycinea in seeds by the PCR method

Submitted by Гость (not verified) on Tue, 07/09/2024 - 16:45

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This article describes the application of the classical PCR method for the diagnosis of the soybean bacterial blight pathogen Pseudomonas savastanoi pv. glycinea in seeds. Two methods for pathogen isolation from infected soybean seeds, five methods for DNA extraction and two master mixes for preparation of reaction mixture were investigated. The use of a PCR-based test system with oligonucleotides specific for the coronaphacate ligase (cfl) gene allowed the diagnosis of the soybean bacterial blight pathogen in seeds at a concentration of 2 × 103 CFU/ml.

Development of snow mold of winter wheat in the conditions of the Central Non-Chernozem region with regard to tillage technologies and weather conditions of different years

Submitted by Гость (not verified) on Tue, 07/09/2024 - 16:45

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The paper presents the results of the analysis of diseases of infectious fallout of winter wheat at the Field Experimental Station of the Russian State Agrarian university – Moscow Timiryazev Agricultural Academy from 2013–2015 to 2020–2021, depending on the tillage technology and weather conditions. It was shown that the main disease was pink snow mold (caused by Microdochium nivale). The analysis of the dynamics of the disease over 5 years showed that the prevalence was higher under zero tillage than under moldboard tillage (6.6 and 3.9%, respectively).