风仙等药用植物防治玉米丝黑穗病的试验

9种药用植物对玉米丝轴黑粉病原菌抑制、杀灭作用的试验,结果表明,风仙等4种药用植物药效显著。幼苗期室内观察,应用风仙,可使感病自交系埃及205和黄早4受病原菌侵入的幼芽鞘上活细胞数分别由对照的8.6%及12.4%提高到78.4%及62.7%。田间试验的发病率,分别由对照的22.9%及27.1%减少到4.1%及6.25%。

DESTRAINED SPHACELOTHECA REILIANA(KUHN)CLINT.VAR.ZEAE PASS BY IMPATIENS BALSAMINA ECT.MEDICINAL PLANTS

9 medicinal plants and their restrained and killed for the Sphacelotheca reilina (Kuhn)clint.var.Zeae pass have been tested.Impatiens balsamina L.ect.4 plants were proved that medicinal effect were notabl.In indoor tests,the number of maize live cell dur- ing the seeding stage raised to 78.4% from 8.6% on infection self-bred line Egyptian 205,and raised to 62.7% from 12.4% on infection self-bred line Huang Zao 4.In field ex- periment.the incidence of thod disease reduced to 4.1% from 22.9% on infection self-bred line Egyptian 205,and reduced to 6.25% from 27.1% on infection self-bred line Huang Zao 4.