GENOTYPIC DIFFERENCES IN THE RESISTANCE OF MAIZE SILK TO FUSARIUM-GRAMINEARUM

被引:53
作者
REID, LM
MATHER, DE
HAMILTON, RI
BOLTON, AT
机构
[1] McGill University, Macdonald Campus, 21111 Lakeshore, Ste-Anne-de-Bellevue, QC
[2] Plant Research Centre, Agriculture Canada, Ottawa, ON
来源
CANADIAN JOURNAL OF PLANT PATHOLOGY-REVUE CANADIENNE DE PHYTOPATHOLOGIE | 1992年 / 14卷 / 03期
关键词
D O I
10.1080/07060669209500877
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Samples of detached maize silk tissue were sprayed with a spore suspension of Fusarium graminearum and incubated for up to 168 hours. There was more fungal degradation of silk tissue taken from the silk channel than of silk tissue sampled from outside the husk. Greenhouse-grown tissue was more readily degraded than field-grown tissue. The severity of ear rot symptoms after silk channel inoculation differed significantly among inbreds and was correlated with the amount of degradation of both field-produced and greenhouse-produced silk tissue. These results suggest that resistance mechanisms for resistance to F. graminearunm exist in the silk of some maize genotypes.
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页码:211 / 214
页数:4
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