Incubation period of apple scab and sporulation quantity of Venturia inaequalis were studied during 2002~2004.
2002至2004年间,对苹果黑星病潜育期及其病原菌产孢量研究结果表明,苹果黑星病在嘎啦、富士、秦冠3个品种上的潜育期分别为11。
In order to improve the disease control and resistance breeding, the biological characteristics, infection cycle, incubation period and forecast of this disease were summarized, at the same time, the differen-tiation of the physiological races, the inheritance of resistance to this disease and the application of toxins were also dis-cussed in t.
本文主要从应用的角度论述了大豆灰斑病菌(Cercospora sojina Hara)的生物学特性、侵染循环、潜育期以及病害的预测,同时从病原物与寄主相互作用的角度,对大豆灰斑病生理小种的分化、抗性的遗传及代谢毒素等方面进行了综述,以期为该病害的防治及抗病育种研究提供资料与指导。
3x, is obtained from probing the relation between the incubation period of wheat stripe rust and temperature.
通过对小麦条锈病潜育期与温度关系的研究 ,得出了直线方程 y=4 8。