Resistance of Manihot esculenta and its intraspecific hybrids to the whitefly Aleurothrixus aepim (Hemiptera: Aleyrodidae).

摘要: The objective of this work was to evaluate the resistance Manihot esculenta and its hybrids ( M. x ssp. flabellifolia peruviana ) whitefly Aleurothrixus aepim ). trial carried out in a greenhouse from October December 2015, it based on completely randomized design with eight treatments (eight genotypes). evaluated variables replicates were following: duration developmental phases (nine replicates); nymphal viability egg (five period incubation number eggs (three replicates). Trichome counting replicates) colorimetric analysis also performed. 'Ecuador 72' genotype promoted lowest value for immature development phase (44.89%), showing an antibiosis effect A. . FLA 003 (a wild accession F1 011 PE 001 peruviana) showed by antixenosis less preferred oviposition. 72', 003, 011, genotypes can be used as sources obtain new, resistant cultivars cassava.