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本研究是1960年在望亭苏州专区农科所进行的。该年是水稻白叶枯病发生的轻病年。从5月30日起,分期在双季早稻(有芒早沙粳)、中稻(黄谷早)和晚稻(853)的试验小区,移栽人工接种的病秧共52个点,观察在不同栽培条件下发病中心的形成情况。在水稻生长前期,田间植株分布稀疏,发病条件较差,连续的高温干旱造成病秧早期枯死,使它失去传病作用。病秧移栽到本田以后,最初病害并不向外发展,并且有部分病叶枯死;5月30日和7月10日两期移栽的,由于遇到天旱,病叶枯死尤多。在所有的小区中,病秧附近开始找到新病株
This study was carried out in 1960 in the Agricultural Science Institute of Suzhou. This year is the light year of rice bacterial blight. From May 30, a total of 52 points of transplanted artificial seedlings were staged in the pilot quarters of double-seasons early rice (with Composita sativa), middle rice (yellow valley early) and late rice (853) The formation of disease centers under cultivation conditions. In the early stage of rice growth, the plants in the field were sparsely distributed and the disease conditions were poor. Continuous high temperature and drought caused the seedlings to die early and made them lose their pathogenic role. Sicklings transplanted to Honda, the initial disease does not go out, and some sick leaves dead; May 30 and July 10 two transplanted, due to drought, sick leaves withered more. In all the communities, the new disease strains were found near the seedlings