行政院農業委員會台南區農業改良場  研究彙報第20號

玉米莖腐病綜合防治研究

杜金池 鄭安秀 曹建銘

摘  要

杜金池、鄭安秀、曹建銘.1986.玉米莖腐病綜合防治研究。台南區農業改良場研究彙報20:29~38。

玉米品種間對玉米莖腐病的抗感性十分顯著,飼料玉米品種抗性以台南11號最高,其親本AMEⅢ及LY22-4屬強抗病自交系,可做為育種材料。玉米最易感染莖腐病時期在播種後25∼35天,恰為一般玉米田行培土之期,且其發病以地上部第二節以上發病較高。藥劑防治以施用Ridomil-MZW.P.400倍於莖基部後培土,效果最佳。高溫多濕為發病盛期,玉米田可採行小培土或配合施用藥劑,能抑制本病的發生。

關鍵字:玉米、玉米莖腐病、Pythium aphanidermatum、防治。


Studies on Control of Stalk Rot of Corn

C. C. Tu, A. H. Cheng and G. M. Chen

Summary

       There were variations in susceptibility among the varieties of corn for Pythium stalk rot. Tainan No. 11 hybrid lines AME III and LY-22-4 were the most resistant to this disease. The susceptible stage of the disease was 25~35 days after sowing (the bank stage) of corn. The result showed the % of disease would be low by banking after spraying Ridomil-MZ 400× onto the 30 cm high above ground of stem. So far, that was the way for control this disease by low banking or unbanking when temperature and humidity are abnormally high lasting for a period at the bank stage of corn.



回研究彙報目錄