Ferreira, C.A., Ferreira, R.L.C., dos Santos, D.C., Ferreira dos Santos, M.V., Aleixo da Silva, J.A., Lira, M. de A., & Molica, S.G. 2003 Utilização de técnicas multivariadas na avaliação da divergência genética entre clones de palma forrageira (Opuntia ficus-indica Mill.. Revista Brasileira de Zoologia 32(6): 1560-1568.

Notes: Title in English: [Use of multivariate techniques in genetic divergence evaluation among cactus forage (Opuntia ficus-indica Mill.) clones.] The phenetic divergence among 19 clones of cactus forage was evaluated in Caruaru, Pernambuco, Brazil using multivariate techniques. The infestation percentage by cochineal was considered a characteristic of susceptible plants.