西瓜花叶病毒由蚜虫传播,可严重降低西瓜单产。为此,美国农业部农业研究署植物遗传资源研究室经过5年的研究,育成并推广了可抗病毒的4个新的西瓜品系。根据田间试验,其抗性最强的品系在有意识的病毒暴露后,只有6%植株染毒,而对照品系植株的感染率则高达95%。这4个品系均来源于尼日利亚和扎伊尔。它们可作为抗病毒授 Watermelon mosaic virus spread by aphids, watermelon can seriously reduce the yield. To this end, the US Department of Agriculture’s Agricultural Research Laboratory of Plant Genetic Resources after 5 years of research, breeding and promotion of four new watermelon strains can be resistant to viruses. According to field trials, only 6% of the plants were exposed to the virus after conscious virus exposure, while the most resistant strains of the control strain were up to 95%. These four strains are derived from Nigeria and Zaire. They serve as antivirals