| 大豆灰斑病抗性鉴定与遗传的初步研究 |
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| 引用本文： | 杨庆凯,齐永安,武天龙,张晓刚.大豆灰斑病抗性鉴定与遗传的初步研究[J].东北农业大学学报,1988(1). |
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| 作者姓名： | 杨庆凯 齐永安 武天龙 张晓刚 |
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| 作者单位： | 东北农学院农学系育种教研室，东北农学院农学系育种教研室，东北农学院农学系育种教研室，东北农学院农学系育种教研室 |
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| 摘 要： | 本文提出以病斑大小和病斑数量的两个指标作为灰斑病抗性鉴定的分级标准。以田间自然发病调查和50份材料用不种单一生理小种分别接种鉴定,其结果表明:灰斑病生理小种既有遗传差异的一面,也有互相影响的一面。抗病品种抗多个生理小种,对某一、二个生理小种即使感病,程度也轻;总之,感病品种往往感染多个小种,对某些小种表现的抗性也是低的。F_1—F_4代杂种后代的遗传分离调查表明,在田间多生理小种存在的情况下,以病情等级作分离情况调查,抗病性呈现数量性状遗传特征。
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| 关 键 词： | 大豆 灰斑病 抗性鉴定 遗传 |
RESISTANT TEST AND A STUDY ON INHERITANCE OF RESISTANCE OF SOYBEAN FROGEYE LEAF SPOT |
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| Yang Qingkai,Qi Yongan,Wu Tianlong and Zhang Xiaogang.RESISTANT TEST AND A STUDY ON INHERITANCE OF RESISTANCE OF SOYBEAN FROGEYE LEAF SPOT[J].Journal of Northeast Agricultural University,1988(1). |
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| Authors: | Yang Qingkai Qi Yongan Wu Tianlong and Zhang Xiaogang |
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| Institution: | Yang Qingkai;Qi Yongan;Wu Tianlong and Zhang Xiaogang |
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| Abstract: | Frogeye leaf spot disease has been an important one in soybean productfor several years in Heilongjiang province.The authors present differentiating criterion for evaluating resistent to thedisease according to area and quality of spot on leaf of soybean.Greater part ofnumber of cultivated varieties in the province weren't resistant to this disease.The 50 varieties were evaluated with 7 physiological races of the disease,theresults showed that resistant variety would be resistant to majority of physi-ological races,though it may be infected by one or two races,but its susce-ptbility would be lower than susceptible varieties.The analysis of crossbreeding population showed the resistance to frogeyeleaf spot was a qualitative character when the evaluating was done in field.It is necessary for developing resistant cultivar to cross among resistantor between resistant and susceptible parents. |
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| Keywords: | soybean frogeye leaf spot disease resistant test inherianc |
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