论文部分内容阅读
用感病番茄品种的子叶进行组织培养，以早疫病菌培养滤液为选择剂进行了抗病突变体筛选。经７次继代筛选，获得５１块抗性愈伤组织，分化出８株再生植株。经人工接种抗病性鉴定表明８株再生植株均为抗病植株，病情指数为６．２５。４９株对照再生植株病情指数为８９．２９，其中有一株也是抗病植株。原品种的病情指数为９３．３３。
Cotyledons of susceptible tomato varieties were used for tissue culture, and the disease-resistant mutants were screened by using the filtrate of A. blight culture as selective agent. After 7 successive subcultures, 51 resistant calli were obtained and 8 regenerated plants were differentiated. The results of artificial inoculation and disease resistance showed that all of the eight regenerated plants were resistant to disease and the disease index was 6.25.49. The disease index of the regenerated plants was 89.29, of which one was also resistant to disease. The original disease index of 93.33.