稻曲病菌越冬厚垣孢子接种试验续报

1991年,作者利用自然越冬及人工越冬的稻曲病厚垣孢子接种均获得成功,首次证明了在海龙自然条件下,厚垣孢子能越冬作为初侵染源;证明了厚垣孢子不经干燥,直接冷藏可以存活9个月左右,仍能萌发致病。在1990年试验的基础上,1991年试验再次证明了喷雾接种法的可行性,证明了接种适期,为研究品种抗性及药剂防治提供了新的方法与依据。

CONTINUAL STUDIES ON INOCULATION BY THE OVERWINTERED CHLAMYDOSPORE OF USTILAGINOIDAE VIRENS (CKE.) TAKAHASHI

In 1991, we used the chlamydospore of Ustilaginoidae virens(CKe.)Takahashi which past winter under nature condition or kept in a freezing machine to inoculate Successfully paddy rice. It was first demonstrated That the chlamydospore of U. cound be kept under the nature condition of Hai Long and cound become the primary infection agent and that the chlamydospore kept under lower temperature (+4℃)without dryness cound be alive about nine months. Following 1990's experiment, the 91' experiment demonstrated again that inoculation by spraying suspension of spore was possible, and that the period for inoculation adequate was. All of these result provided new method for researching the resistance of paddy rice varieties and reliance for chemical protection.