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1984——1985年在石河子地区采集了蕃茄病毒标样175个,包括不同症状和严重度的病株。通过鉴别寄主反应,蚜传实验,物化属性测定血清学反应及病毒提纯后的电子显微镜形态观察进行了病毒种类的常规鉴定。初步认为,1984年石河子地区蕃茄病毒病的主要病源是TMV—蕃茄株系,占田间流行病源的74.5%,占调查样点的81.8%,其次为TMV—普通株系和CMV分别占30.6%和24%,同时占调查样点的63.6%和72.76%,但未发现CMV单独感染的病株。 在鉴定工作的同时,对蕃茄病毒病的流行与环境因素的关系,品种抗病性,种子带毒情况,种子消毒及蕃茄病毒病的田间防治作了初步探讨,认为对蕃茄病毒病影响较大的主要是温度,连作及田间管理等。远离菜地且有自然屏障的蕃茄病毒病明显减轻。除此,蕃茄品种间有一定的抗病性差异。新鲜种子带毒率高,贮藏数月后带毒率明显降低,用磷酸三钠和次氯酸钠对种子进行消毒,可以降低种子带毒率;磷酸二氢钾在蕃茄病毒病发病初期喷洒有明显的控制作用,且有增产效果。
From 1985 to 1985, 175 tomato virus samples were collected from Shihezi area, including those with different symptoms and severity. The identification of the virus species was carried out through the identification of host reaction, aphid-feeding experiment, physico-chemical properties determination of serological reaction and electron microscopy morphological observation after virus purification. It is preliminarily believed that the main source of tomato virus disease in Shihezi region in 1984 was TMV-tomato, accounting for 74.5% of the epidemic sources in the field, accounting for 81.8% of the surveyed samples, followed by TMV-common strains and CMV respectively accounting for 30.6% and 24%, accounting for 63.6% and 72.76% of the surveyed samples, but no diseased plants infected with CMV were found. At the same time of appraisal, the relationship between the epidemic and environmental factors of tomato virus disease, disease resistance of varieties, seed poisoning, seed disinfection and tomato virus disease were preliminarily discussed in the field. It was considered that tomato virus disease had a great impact The main is the temperature, cropping and field management. Tomato virus disease far from the vegetable and natural barrier significantly reduced. In addition, there are some differences between tomato varieties resistance. Fresh seed with high rate of poisoning, storage rate was significantly reduced after several months of storage, with trisodium phosphate and sodium hypochlorite disinfection of seeds, can reduce the rate of seed poisoning; potassium dihydrogen phosphate spray in the early stages of tomato disease control was significantly Role, and increase yield.