INFLUENCE OF MICROELEMENT MANGANESE ON RESISTANCE OF SOFT WHEAT TO POWDERY MILDEW
https://doi.org/10.36305/0513-1634-2021-138-134-138
Abstract
The effect of microelement manganese top-dressing on resistance of soft wheat to powdery mildew № pathogen was studied. То study the effect of the element manganese on the development of the pathogen, wheat seedlings were fed with а 0,2% solution of КМn04. Infected plants not fed with the test solution served as control.
Observations on the intensity of germination of conidia of the powdery mildew pathogen on wheat leaves showed that the spomlation of conidia in the variant with feeding with 0,2% КМn04 solution was lower than in the control variant. We found that in the control variant without the use of а КМn04 solution, the colonies of powdery mildew fungus were characterized Ьу abundant spomlation, the formation of а halo was observed. In the experimental variant the growth and reproduction of conidia proceeded more slowly and halos were not noticeaЫe. In this study in the control variant ofthe experiment, the predominance of conidial chains in the colonies ofthe powdery mildew pathogen was noted in comparison with the variant with feeding.
Thus, it was found that feed solution of0,2% КМn04 leads to а decrease in the formation of appressoria and the number of visiЫe colonies of the powdery mildew pathogen on wheat leaves. The presented results confIГm that top-dressing with microelement manganese enhances resistance ofwheat against powdery mildew.
About the Authors
G. A. Avetisyan
Федеральное государственное бюджетное учреждение науки Главный ботанический сад им. Н.В. Цицина Российской академии наук
Russian Federation
Russian Federation
T. V. Avetisyan
Федеральное государственное бюджетное учреждение науки Главный ботанический сад им. Н.В. Цицина Российской академии наук
Russian Federation
Russian Federation
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Review
For citations:
Avetisyan G.A., Avetisyan T.V. INFLUENCE OF MICROELEMENT MANGANESE ON RESISTANCE OF SOFT WHEAT TO POWDERY MILDEW. Bulletin of the State Nikitsky Botanical Gardens. 2021;1(138):134-138. (In Russ.) https://doi.org/10.36305/0513-1634-2021-138-134-138
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