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1973年在辽宁、江苏两处共收集到小麦秆锈菌夏胞子堆标样1,144份,经繁殖存活和鉴定的标样共402份,分离出21、21C_1、21C_2、21C_3、34、34C_1和34C_2 7个小种区系。在7个区系中,它们的出现率:21C_3占75.8%,21C_2占15.7%,21占32%,34占25%,34C_1占1.7%,21C_1和34C_2各占0.5%。21C_3是当前小麦秆锈菌优势区系。根据标样上秆锈菌小种区系的鉴定结果,近年来生产上所用的品种大多是不抗当前流行的21C_3和21C_2两个区系的,为使小麦生产获得相对稳定性起见,加强这些品种的抗秆锈病的性能是必要的。
A total of 1,144 samples of summer straw seed cells were collected from Liaoning and Jiangsu provinces in 1973. A total of 402 samples were obtained from 402 surviving and identified breeds and 21, 21C_1, 21C_2, 21C_3, 34, 34C_1 and 34C_2 Seven races. Among the seven forages, their occurrence rates are 75.8% for 21C_3, 15.7% for 21C_2, 32% for 21, 25% for 34, 34% for 34C_1, and 0.5% for 21C_1 and 34C_2, respectively. 21C_3 is the current wheat stripe rust dominant zone. According to the identification results of the races of the stalk rust genim on the standard samples, most of the cultivars used in the production in recent years are not resistant to the current prevailing 21C_3 and 21C_2 strains. To strengthen the relative stability of wheat production, Variety of anti-stem rust performance is necessary.