Abstract:
:Fourteen genotypes (varieties) of soybean (Glycine max) were screened for levels of induced resistance to Mexican bean beetle (Epilachna varivestis) damage, and a subset of 6 of those varieties was screened for levels of constitutive resistance to Mexican bean beetles. Experiments were carried out in the greenhouse, with damage imposed by Mexican bean beetle larvae, and levels of resistance measured by a choice test bioassay with adult beetles. We found significant variation among soybean genotypes in levels of both induced and constitutive resistance. We found no significant correlation between levels of induced and constitutive resistance measured in the same genotypes. We compare these results to past work on resistance in the soybean-Mexican bean beetle system, consider the implications of variation in both types of resistance for plant-herbivore interactions in agricultural and natural systems, and discuss the relationship between induced and constitutive resistance.
journal_name
Oecologiajournal_title
Oecologiaauthors
Underwood N,Morris W,Gross K,Lockwood Iii JRdoi
10.1007/PL00008839subject
Has Abstractpub_date
2000-01-01 00:00:00pages
83-89issue
1eissn
0029-8549issn
1432-1939pii
10.1007/PL00008839journal_volume
122pub_type
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