Application of Bacillus megaterium bm22 and its spore liquid preparation in the control of cyclamen blackroot disease

Abstract

The invention discloses the application of Bacillus megaterium BM22 and its spore liquid preparation in the prevention and treatment of cyclamen blackroot disease. The Bacillus megaterium BM22 has been preserved, and the preservation unit is: China Ordinary Microorganism Culture Preservation Management Center, preservation number It is CGMCC No.15070. The bacillus megaterium BM22 spore liquid preparation is obtained from the bacillus megaterium BM22 as the strain, and the liquid preparation is obtained through seed cultivation and fermentation culture. The bacillus megaterium BM2 of the present invention has spores with strong stress resistance, is suitable for commercial production, and has dual functions of disease prevention and growth promotion.

Description

technical field

[0001] The invention belongs to the technical field of microorganisms, and relates to the application of bacillus megaterium BM22 and its spore liquid preparation in the prevention and treatment of cyclamen blackroot disease. Background technique

[0002] Cyclamen persicum Mill, also known as radish crabapple, rabbit ear flower, rabbit flower, Yipinguan, bonfire flower, and petal lotus, is a perennial herb of Primulaceae and cyclamen. The leaves grow from the top of the tuber, and the heart Shaped, ovate or reniform, the leaves have fine serrations, the leaf surface is green, with white or gray halo spots, the back of the leaves is green or dark red, the petiole is long, reddish brown. Cyclamen likes warmth and is afraid of heat. It grows best in a cool environment and fertile sandy loam rich in humus. It is more cold-resistant and can withstand low temperatures of 0°C without being frozen. Autumn to spring of the second year is its growing season. It is se...

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