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农用抗菌素2608是1974年从江西土壤中分离到的一株放线菌产生的抗菌素。经过两年来的盆栽和田间小区试验,证明它对防治小麦赤霉病有较好的防治效果。而且毒性低(LD50大于1000毫克/公斤),使用安全,便于生产,在我国防治麦类赤霉病药剂品种不多、数量不足的情况下,是应加以研究和发展的一个农用抗菌素品种。现将2608药效试验初步结果简报如下。一、抑菌效果试验采用离体麦穗接种培植法,供试的麦穗品种为扬麦1号。先以农抗2608乳剂稀释200倍液浸渍麦穗,俟干燥后,喷施赤霉病菌分生孢子,然后砂培。保湿4天后,观察麦穗上菌丝的生长情况。
Agricultural antibiotic 2608 is an antibiotic produced by an actinomycete isolated from soil in Jiangxi Province in 1974. After two years of potted and field plot test, it has proved that it has a better control effect on wheat scab. But also has low toxicity (LD50> 1000 mg / kg). It is safe to use and easy to produce. It is an agricultural antibiotic variety that should be researched and developed under the condition that there are not many varieties of wheat scab in our country. Now the preliminary results of the 2608 efficacy test report is as follows. First, the antibacterial effect test In vitro etiolation inoculation cultivation method for the test wheat varieties Yangmai 1. First of all anti-2608 emulsion diluted 200 times the liquid immersion wheat ears, drying, spray conidiophores conidia, and then sand culture. After 4 days of moisturizing, observe the growth of mycelium on the ears.