scholarly journals The efficiency of application of biological preparations with a fungicidal effect against the sunflower diseases in the central zone of the Krasnodar region

2021 ◽  
Vol 650 (1) ◽  
pp. 012041
Author(s):  
A S Bushnev ◽  
S B Babenko ◽  
N A Bushneva
Keyword(s):  
Central Zone ◽  
Fungicidal Effect ◽  
Krasnodar Region

scholarly journals The breeding of spring rapeseed and brown mustard for resistance to Fusarium blight

2021 ◽  
Vol 845 (1) ◽  
pp. 012027
Author(s):  
O A Serdyuk ◽  
V S Trubina ◽  
L A Gorlova
Keyword(s):  
Oil Content ◽  
Central Zone ◽  
Cost Effective ◽  
Blight Resistance ◽  
Growth Season ◽  
Breeding Material ◽  
Breeding Work ◽  
Environmentally Safe ◽  
New Varieties ◽  
Krasnodar Region

Abstract During the growth season, the plants of rapeseed (Brassica napus L.) and brown mustard (Brassica juncea L.) are affected by various diseases: Fusarium blight, Verticillium blight, Alternaria blight, and others. The cultivation of rapeseed and mustard varieties resistant to diseases is a cost-effective and environmentally safe way to protect plants from diseases. The aim of the work was to evaluate the new breeding material of spring rapeseed and brown mustard for resistance to Fusarium blight in the form of tracheomycotic wilting of plants to continue breeding work to develop varieties of these crops. In 2017-2020, we carried out a phytopathological evaluation of new breeding samples of rapeseed and brown mustard for resistance to Fusarium blight. As a result, we selected a valuable breeding material of spring rapeseed and brown mustard resistant to Fusarium blight infection, which also exceeds the standard by economic characters. The productivity of the best selected samples is higher than the varieties Tavrion and Nika by 0.13-0.59 and 0.18-0.28 t/ha, respectively, the oil content of seeds – by 0.2-2.0 and 1.2-2.1 %, respectively. These samples will be used as donors of Fusarium blight resistance in breeding work during development of new varieties of spring rapeseed and brown mustard in the central zone of Krasnodar region.

scholarly journals Species of herbivorous bugs in sunflower crops in the central agro-climatic zone of the Krasnodar region

2021 ◽  
Vol 188 (4) ◽  
pp. 82-86
Author(s):  
N.A. Bushneva ◽  
◽  
V.V. Dolgov ◽  
Keyword(s):  
Growth And Development ◽  
Central Zone ◽  
Sunflower Seeds ◽  
Protection Measures ◽  
Tarnished Plant Bug ◽  
Vegetative Period ◽  
Lygus Rugulipennis ◽  
Cultivation Technology ◽  
Krasnodar Region ◽  
Further Development

One of the factors limiting high and qualitative yields of sunflower seeds is pests. Phytophages injure plants of the crop during the whole vegetative period causing growth and development disorders, and sometimes plants depth. Together, insects play the important role in distribution of pathogens, especially fungi from genera Alternaria, Fusarium, Rhizopus, and Puccinia, as well as bacteria. Among phytophages on sunflower, the most harmful are herbivorous bugs (class Hemiptera) of fleahopper (Miridae) and stinkbug (Pentatomidae) families. Bugs feeds on plants sap, they suck it out of the different plant organs. The basic oil crop in the Krasnodar region is sunflower. In 2021 its sowing area accounted to 442 thousand ha. Breaks of scientifically substituted cultivation technology lead to deterioration of phytosanitary state of sunflower crops by means of concentration of pathogens, including herbivorous bugs. The purpose of the research was to determine species and prevalence of bugs and their dominating species in sunflower crops in the Krasnodar region for the further development of protection measures. The result showed in the central zone of the Krasnodar region the sunflower crops are inhabited with 12 species of bugs from the families: Miridae, Pentatomidae, Alydidae and Coreidae. Prevalence of tarnished plant bug (Lygus pratensis (Linnaeus, 1758) and bishop bug (Lygus rugulipennis (Popp., 1911) was high (60 and 80%, respectively), and sloe bug (Dolycoris baccarum (Linnaeus, 1758) was maximal – 100%. A sloe bug prevailed in sunflower crops – 36.1%.

scholarly journals EFFECT OF HETEROSIS AND PHENOTYPIC DOMINANCE I INTERLINE HYBRIDS OF WINTER RAPESEED

2021 ◽  
Author(s):  
Е.А. Strelnikov ◽  
Keyword(s):  
Brassica Napus ◽  
Oil Content ◽  
Central Zone ◽  
Preliminary Test ◽  
Brassica Napus L ◽  
Hybrid Combination ◽  
Heterosis Effect ◽  
Economically Valuable Traits ◽  
Winter Rapeseed ◽  
Krasnodar Region

There are presented data on heterosis displaying at the experimental hybrids F1 of winter rapeseed (Brassica napus L.) by the basic economically valuable traits. The research was conducted in the central zone of the Krasnodar region. We determined a level of phenotypic dominance and heterosis effect in some winter rapeseed hybrids. In preliminary test, a hybrid combination 39712 × ОRK 9 demonstrated authentically high true and competitive heterosis and overdominance by all the studied traits. The best hybrid combinations by yield and oil content in seeds appeared to be 1746 × ОRK 14, 40059 × ОRK 17 and 40059 × ОRK 21, which showed authentically high competitive heterosis and overdominance.

scholarly journals Analysis of diseases affecting winter and spring forms of Brassica napus L. and Brassica juncea L. in the central zone of the Krasnodar region

2021 ◽  
Vol 937 (3) ◽  
pp. 032114
Author(s):  
O A Serdyuk ◽  
V S Trubina ◽  
L A Gorlova
Keyword(s):  
Brassica Napus ◽  
Brassica Juncea ◽  
High Frequency ◽  
Bacterial Blight ◽  
Low Frequency ◽  
Central Zone ◽  
Occurrence Frequency ◽  
Brassica Napus L ◽  
White Rust ◽  
Krasnodar Region

Abstract The purpose of the research was a comparative evaluation of the disease affection of spring and winter forms of Brassica napus and Brassica juncea on the central zone of the Krasnodar region. Phytosanitary monitoring of diseases was carried out from the seedling stage. In 2011-2020, there were identified the diseases affecting winter and spring crops Brassica napus and Brassica juncea to the same extent: the occurrence frequency of downy mildew and powdery mildew was high, of Alternaria blight – from medium to high, of phytoplasma and bacterial blight – low. Differences are established for Sclerotinia disease, Phoma rot, Fusarium blight, white rust, gray rot. The occurrence frequency of Sclerotinia disease on winter form of Brassica napus and Brassica juncea varied in research years from low to medium, of Phoma rot – from medium to high; on spring forms, these diseases were noted in certain years with the low frequency. Fusarium blight affected only sowings of spring forms of Brassica napus and Brassica juncea with medium and high frequency, except for 2018-2019, when it was low. White rust affected only spring from of Brassica napus, gray rot – only winter forms of Brassica napus and Brassica juncea in certain years with the low frequency.

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