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Journal: Science and world (Vol.2, No. 44)

Publication Date:

Authors : ;

Page : 18-20

Keywords : onions; storage; onions diseases; fungi micromycetes; blossom blight; Fusarium blight; fungicide; consumption rate; development intensity; biological efficiency.;

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In this article the issue of avoiding the pythium rot on onion upon storage is considered. The most widespread and harmful diseases of onions upon storage in Uzbekistan is rottenness, including Fusarium blight, black rot and blossom blight (aspergillosis and penicilliosis), also rottenness, caused by imperfect fungi, are noted, which cause: Botrytis alii, B. cinerea, Aspergillus niger, Penicillium expansum, Trichothecium roseum, Cladosporium herbarum. Fungicide 50% Fundazol wettable powder was applied to avoid the rottenness development. We can recommend the steep of onion harvest into 0,3% Fundazol's solution for 2 min., where biological efficiency of fungicide 50% Fundazol wettable powder against blossom blight in 15 and 30 days after processing has made 83,7 % and 82,4 %, and in 45 days – 64,7 %. The biological efficiency of 50% Fundazol wettable powder against Fusarium blight of onion has made in 15 and 30 days after processing – 92,2 % and 92,1 % respectively, and in 45 days – 69,6 %.

Last modified: 2017-06-01 17:34:02