scholarly journals Effects of Relay-Intercropping Sorghum With Winter Wheat, Alfalfa, and Cotton on Lady Beetle (Coleoptera: Coccinellidae) Abundance and Species Composition

2010 ◽  
Vol 39 (3) ◽  
pp. 763-774 ◽  
Author(s):  
Mpho W. Phoofolo ◽  
Kristopher L. Giles ◽  
Norman C. Elliott
2017 ◽  
Vol 38 (SI 2 - 6th Conf EFPP 2002) ◽  
pp. 361-363
Author(s):  
E. Patkowska ◽  
D. Pięta ◽  
A. Pastucha

The purpose of the present studies was to establish the species composition of fungi occurring on the underground parts of winter wheat, Kobra cv. and to determine the quantitative and qualitative composition of microorganisms developing in the rhizosphere of this plant. The mycological analysis of the infected roots and the stem base of winter wheat gave 320 fungi isolates. Fusarium spp. were most frequently isolated, and their proportion was 64.7% of all the fungi. This genus was represented by F. avenaceum, F. culmorum, F. equiseti, F. graminearum, F. oxysporum and F. solani. Among these species the dominating ones were F. avenaceum (19.4%) and F. culmorum (38.7%). The microbiological analysis of winter wheat rhizosphere gave the highest number of total bacteria (6.32 × 106 cfu/g of d.w. of soil). The number of Pseudomonas pp. was 3.56 × 106 cfu/g of d.w. of soil, and the number of Bacillus spp. was 2.42 × 106 cfu/g of d.w. of soil. Fusarium spp. and Rhizoctonia solani dominated within pathogenic fungi isolated from the rhizosphere of winter wheat.


2020 ◽  
Vol 107 (3) ◽  
pp. 96-104
Author(s):  
V. Medvid ◽  

Entomofauna of winter wheat in the Right-bank Forest-Steppe of Ukraine The entomofauna of winter wheat in the Right-Bank Forest-Steppe of Ukraine during the spring-summer vegetation of 2017–2019, which consisted of 46 species from 8 orders of insects, was studied. 32 species from 17 families were identified among the phytophages winter wheat. The greatest diversity of the Coleoptera was shown. The species composition of the entomocomplex of each year is analyzed, the frequency of occurrence of species is determined. It was found that during three years of research in the agrocenosis of wheat most often there were only three species: Haplothrips tritici Kurd., Sitobion avenae F. and Eurygaster integriceps Put. Keywords: entomofauna, species composition, winter wheat, phytophages, entomophages.


2018 ◽  
Vol 0 (2(42)) ◽  
pp. 81-89
Author(s):  
О. А. Грицев ◽  
О. Л. Зозуля ◽  
Н. Г. Воробйова ◽  
Л. М. Сківка

2021 ◽  
pp. 62-64
Author(s):  
Elmurat Sh. Toreniyazov. ◽  
Bakhtiyar U. Bauetdinov

The article presents the results of a study on the study of the peculiarities of wheat cultivation in the extreme conditions of Karakalpakstan. The species composition of harmful insects inhabiting the wheat biocenosis has been studied. features of the use of lacewings multiplied at the biological laboratory against wheat aphids and the conditions of their reproduction in subsequent periods, with an increase in natural populations on wheat crops.


2013 ◽  
Vol 38 (7) ◽  
pp. 1307-1317 ◽  
Author(s):  
Gao-Qiong FAN ◽  
Jin-Gang LI ◽  
Xiu-Fang WANG ◽  
Ting ZHEN ◽  
Xiang GUO ◽  
...  

2020 ◽  
Vol 10 (5) ◽  
pp. 76-80
Author(s):  
O.Yu. Karpenko ◽  
V.M. Rozhko ◽  
A.O. Butenko

The results of studying the influence of different systems of agriculture and measures of basic tillage on the number of microorganisms and its phytotoxicity in the field of winter wheat are presented. It is proved that different systems of agriculture and measures of basic tillage do not equally affect the microbiological activity of the rhizosphere of winter wheat in the number and species composition of microorganisms. As a result, the variants created different conditions for the course of biochemical processes in the soil and the formation of crop yields. Moldboard-boardless tillage and the ecological system of agriculture proved to be more promising.


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