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水稻东格鲁病(Rice tungro)是六十年代初在菲律宾国际水稻研究所被首次发现的一种水稻病毒病,我国过去未曾有发生的报道。1979年作者在湘南和闽南的稻田中查到一种黄化型病株,经研究证实,其病状、传播途径、介体种类、传毒特性和病原性状等,均与国外有关东格鲁病的报道基本一致。病害由二点黑尾叶蝉、黑尾叶蝉和电光叶蝉以短暂性或半持久性的方式传播;病毒在介体昆虫内,没有明确的循回期;病害在稻株中的潜育期为11—45天,一般多在20天左右。病原病毒为球状质粒,直径30—35nm。所有这些与国内曾经流行的水稻黄叶病(黄矮病)完全不同。
Rice tungro is a rice virus disease that was first discovered at the International Rice Research Institute of the Philippines in the early 1960s, and has not been reported in our country in the past. In 1979, the author found a yellow type diseased rice plant in paddy fields in southern Hunan and southern Fujian. It was confirmed by the study that the pathogenicity, route of transmission, type of mediator, transmission characteristics and pathogeny were all related to foreign tungguru disease The reports are basically the same. The disease was transmitted in a transient or semi-permanent manner by two-point leafhopper, leafhopper and leafhopper; the virus did not have a clear pass-back period within the mediator insect; and the disease potential in the rice plant Period of 11-45 days, usually more than 20 days. Pathogenic virus is a spherical plasmid, diameter 30-35nm. All of these are completely different from the popular yellow leaf disease (yellow dwarf disease) in China.