Genetic variation of grain sorghum germplasm for resistance to Pseudomonas andropogonis

被引：3
|
作者：
Muriithi, LM [1 ]
Claflin, LE [1 ]
机构：
[1] Kansas State Univ, Dept Plant Pathol, Manhattan, KS 66506 USA
来源：
EUPHYTICA | 1997年 / 98卷 / 1-2期
关键词：
Sorghum bicolor; grain sorghum; Pseudomonas andropogonis; bacterial leaf strip; bacterial diseases; host resistance;
D O I：
10.1023/A:1003025624950
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Pseudomonas andropogonis is the causal agent of bacterial leaf stripe of sorghum (Sorghum bicolor (L.) Moench). Fifty grain sorghum accessions were evaluated for genetic variation to P. andropogonis over a 2-year period. Plants were inoculated at the 7 to 8 leaf stage of juvenile growth with an Idico filler-plug gun calibrated to deliver one mi of inoculum. Disease severity ratings were noted 2 weeks after inoculation on a 0 to 5 scale. For 1993 and 1994, disease severity ratings were significantly different (P < 0.01) among accessions and groups of resistant, intermediate, and susceptible germplasm. Significant differences (P < 0.05) were also observed between years. Resistant accessions included SC326-6, SC414-12E, BTX378, B35-6, and TX2862. Susceptible entries included TX2767, TX430, TAM428, BTx623, R9117, and 90B2662.
引用
收藏
页码：129 / 132
页数：4
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