Research inSolanum spp. of sources of resistance to the potato tuber mothPhthorimaea operculella (Zeller) |
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| Authors: | S Arnone S Musmeci L Bacchetta N Cordischi E Pucci M Cristofaro A Sonnino |
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| Institution: | (1) Dipartimento Innovazione, Divisione Biotecnologie e Agricoltura, CR Casaccia, ENEA, Via Anguillarese 301, 00060 Roma, Italia;(2) Dipartimento Protezione delle Piante, Università della Tuscia, 01100 Viterbo, Italia |
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| Abstract: | Summary The potato tuber moth (PTM) represents a dangerous pest on potato crop in Italy, spreading out from southern areas to central
and northern areas.
Introductions ofSolanum berthaultii, S. commersonii, S. pinnatisectum, S. sparsipilum, S. spegazzini, S. sucurense, S. tarijense wild species andS. tuberosum × S. berthaultii hybrids were evaluated for resistance to a PTM population isolated from a field in central Italy, by means of an antibiosis
test on tubers in the laboratory and of an antixenosis trial in the field. SeveralS. sparsipilum andS. pinnatisectum clones showed an antibiosis effect on larval survival and antixenosis of the aerial and the hypogeal parts of the plant.
In the field, the genotypes with leaf glandular trichomes did not revcal the expected antixenosis effect of the acrial part
of the plant. |
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| Keywords: | glandular trichomes antibiosis antixenosis |
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