Влияние биопрепаратов на снижение фузариозных гнилей кукурузы
2020
Щербакова, Т. (Academy of Sciences of Moldova. Institute of Genetics, Physiology and Plant Protection, Chisinau (Republic of Moldova) | Пынзару, Б. | Матичук, B. | Леманова, H. | Волощук, Л.
The studies were carried out in laboratory and field conditions. From the infected corn plants, 25 isolates of Fusarium fungi were isolated into a pure culture. By seed bioassay, it was determined that 56% of the isolated Fusarium fungi are pathogenic for maize. We determined the effectiveness of fungal biological products in inhibiting the development of root rot of corn seedlings in conditions of hard infectious background. The effectiveness of the biological product Trichodermin-SC was 40,3% in the suppression of the pathogen F.verticillioides and 56,6% in the suppression of the pathogen F.graminearum. The effectiveness of the biological product Gliocladin-SC was 38,4% and 43,4%, respectively. The effect of presowing treatment of seeds with the biological preparations Trichodermin- SC, Gliocladin-SC and Paurin on the indicators of biological yield components of sugar corn hybrids (Porumbeni-280 and Porumbeni-402) for the production of flour was determined in field experiments. Biological products increased the length of the cobs by 3,8-12,5%, the weight of 1000 seeds – by 3,8- 20,6%, the weight of seeds per cob – by 1,4-16%, the grain yield – by 1,4-14,9%.
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