中文摘要:近期籼稻衍生品种在东亚和东南亚的推广增加了白背飞虱和南方水稻黑条矮缩病毒(SRBSDV)爆发的风险。本研究比较了两种粳稻、两种籼稻和一种籼稻衍生品种对白背飞虱的杀卵反应程度及对SRBSDV的易感程度。籼稻衍生品种的杀卵反应显著高于籼稻,但与粳稻杀卵反应等同,这与之前的研究结果一致,即:粳稻杀卵反应高于籼稻,粳稻杀卵反应是一种由几个相关基因控制的数量性状。研究结果表明:籼稻和籼稻衍生种上由白背飞虱和SRBSDV造成的损害可能会同样发生在粳稻上,因此,在粳稻栽培中,白背飞虱高度爆发时应采取措施对其进行防治。
外文摘要:The recent spread of Oryza sativa L. (rice) ssp. indica-derived cultivars in East and Southeast Asia increases the risk of white-backed planthopper, Sogatella furcifera, and Southern rice black-streaked dwarf virus (SRBSDV) outbreaks. We compared the degree of ovicidal response to S. furcifera and susceptibility to SRBSDV among two Oryza sativa ssp. japonica, two Oryza sativa ssp. indica and one Oryza sativa ssp. indica-derived rice cultivars. The ovicidal response of the O. sativa ssp. indica-derived cultivar was significantly higher than that of the tested O. sativa ssp. indica cultivars and was equivalent to that of the O. sativa ssp. japonica cultivars that we used, supporting previous findings that the ovicidal response is higher in O. sativa ssp. japonica cultivars than in O. sativa ssp. indica cultivars and is a quantitative trait controlled by a few relevant genes. Contrary to the varied ovicidal response, the SRBSDV infection rate among the cultivars and the height of SRBSDV-infected plants between most pairs of cultivars did not differ significantly, although twisting of the leaf tips, a typical symptom of SRBSDV, was not observed in the O. sativa ssp. japonica cultivars. These results indicate that damage by S. furcifera and SRBSDV can occur in O. sativa ssp. japonica as well as in O. sativa ssp. indica and O. sativa ssp. indica-derived cultivars; therefore, in the cultivation of O. sativa ssp. japonica, measures should also be taken against white-backed planthopper during high levels of emergence.
外文关键词:Oryza sativa ssp japonica; Oryza sativa ssp indica; Resistant cultivar; Egg mortality; Stunted growth
作者:Towata, Tomomi; Matsukura, Keiichiro; Sanada-Morimura, Sachiyo; 等
作者单位:日本NARO
期刊名称:APPLIED ENTOMOLOGY AND ZOOLOGY
期刊影响因子:0.888
出版年份:2017
出版刊次:11
点击下载:不同水稻品种对白背飞虱杀卵反应和和南方水稻黑条矮缩病毒易感性的差异研究