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1976-80五年来从全省各地采集小麦叶锈标样中繁殖得来119菌株,通过在温室中对不同品种的接种鉴定,按其对13个鉴别与辅助品种的侵染力,区别出叶中1号、1a、1b,叶中2号、2a、2b,叶中3号、3a、叶中8号、8a、8b、8c,叶中13号、13a、13b,叶中16号、16a、16b以及叶中4号、5号、6号、7号、9号、11号、12号、14号、15号、16号、17号共29个小种,其中以叶中1号、2号、3号、8号、13号、16号各小种群居优势,分布也相当广泛,其余多零星出现。对上述占优势的6小种群列出了小种的毒力公式,并讨论各个的出现频率。对405小麦品种的成株的致病力测定表明:叶中2号最强,叶中1号次之,叶中3号较弱。
From 1976 to 1980, 119 strains of wheat leaf rust were collected from wheat leaf rust samples from different parts of the province. According to the identification of different varieties in the green house and their infectivity on 13 differential and auxiliary varieties, 1, 1a, 1b, Yezhong 2, 2a, 2b, Yezhong 3, 3a, Yezhong 8, 8a, 8b, 8c, Yezhong 13, 13a, 13b, Yezhong 16, 16a , 16b and Yezhong No. 4, No. 5, No. 6, No. 7, No. 9, No. 11, No. 12, No. 14, No. 15, No. 16 and No. 17. In total, The second, third, eighth, thirteenth and sixteenth small population advantage, the distribution is quite extensive, the remaining more sporadic. Toxicity formulas for races are listed for the predominant 6 small population and the frequency of occurrence is discussed. The pathogenicity of adult plants to 405 wheat cultivars showed that the strongest in the leaves was No. 2, the No. 1 in the leaves and the No. 3 in the leaves were weaker.