Leaf effects of wild species ofSolanum and interspecific hybrids on growth and behaviour of the potato tuber moth,Phthorimaea operculella Zeller

Autor:	R. Ciccoli, V. Di Gioia, Silvia Arnone, Sergio Musmeci, Andrea Sonnino
Rok vydání:	1997
Předmět:	Exudate biology fungi Antibiosis food and beverages biology.organism_classification Trichome Phthorimaea operculella Horticulture Botany medicine PEST analysis medicine.symptom Solanum Agronomy and Crop Science Solanaceae Food Science Hybrid
Zdroj:	Potato Research. 40:417-430
ISSN:	1871-4528 0014-3065
DOI:	10.1007/bf02358002
Popis:	Four introductions ofSolanum berthaultii wild species and sevenS. tuberosumxS. berthaultii hybrids were evaluated by antibiosis and antixenosis laboratory tests with potato tuber moth. Some morphological and chemical traits related to the trichomes were analysed. Two clones of the wild speciesS. sparsipilum and five ofS. pinnatisectum, characterised by high tuber resistance, were tested for leaf resistance, both by antibiosis and antixenosis assays. The genotypes with high density of trichomes A and with high exudate PPO activity, showed a moderate negative effect on pupal weight and fecundity in the antibiosis tests. Trichomes B exudate showed a strong repulsive effect on oviposition of adult in the antixenosis tests. TheS. pinnatisectum clones revealed a good leaf resistance level, whereas theS. sparsipilum clones showed lower levels of antibiosis and antixenosis.
Databáze:	OpenAIRE
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