「田間抗蟲型」稻種對褐飛蝨抵抗性檢定方法之研究

Abstract

「田間抗蟲型」稻種對褐飛蝨之抵抗性，可由田間栽植之成長稻株對褐飛蝨之危害反應加以鑑別，但很難使用慣行之怏苗接蟲法檢定。為尋求一種便於判別田間抗蟲型稻種的方法，以供抗蟲育種雜交後代之檢定，本項研究就多種可能供給檢定此類抗蟲品種之方法，進行比較試驗。結果顯示褐飛蝨在某些田間抗蟲型稻品種取食之蜜露分泌量，存活率及棲群成長等雖較在感蟲品種上取食者為少，但依品種而有變異。 The field-resistance in rice varieties to the brown planthopper is easy to be identified with adult plants grown in the field, but they are difficult to be differentiated from susceptible varieties with conventional seedling bulk test method. In order to find a reliable way for screening this type of resistant varieties, some measures which might be used to differentiate the field-resistant varieties from susceptible ones were tested comparatively in this study.