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BRF-1和BRF-2是中国科学院东北地理与农业生态农田分子生态学科组从大豆根际土壤筛选得到的2株革兰氏阳性生防细菌,为了检测它们对田间大豆根腐病的防治效果,2010年在沈阳军区龙镇农副业基地对BRF-1和BRF-2进行田间试验。结果表明:2株生防细菌均有效地抑制了大豆根腐病的发生,发病程度分别降低44.4%和8.8%,BRF-1菌株效果较好,在降低大豆根腐病病情指数的同时,能增加大豆植株花期、始粒期地上部和地下部干物重,提高大豆产量5.9%,是一株很有潜力的生防菌。
BRF-1 and BRF-2 were selected from the Rhizosphere soils of Chinese Academy of Sciences Northeast Geography and Agroecology Farmland Molecular Ecology Group 2 Gram-positive biocontrol bacteria, in order to test their control of soybean root rot in the field In 2010, a field experiment was conducted on BRF-1 and BRF-2 in Longzhen Agriculture and Sideline Substitute Base of Shenyang Military Region. The results showed that the two biocontrol bacteria effectively inhibited the occurrence of soybean root rot, the incidence of which was reduced by 44.4% and 8.8% respectively. The BRF-1 strain had a better effect. While reducing the disease index of soybean root rot, Increasing the flowering period of soybean plants, the initial grain-growing period and the ground floor dry matter weight, increase soybean yield 5.9%, is a potential biocontrol bacteria.