The vegetative development of citrus nursery varieties grafted on three rootstocks at greenhouse conditions under different commercial substrates was evaluated. The experiment, randomized blocks, in a 2x3x3 factorial, was conducted at the research station of the Uiversidade Federal do Rio Grande do Sul, Eldorado do Sul, RS, Brazil, from February to November 2004. The treatments were two citrus varieties ('Valencia' Orange - Citrus sinensis [L.] Osb. and 'Montenegrina' mandarin - Citrus deliciosa Ten.), citrus rootstoocks (Trifoliate orange - C. sinensis (L.) Raf., citrange 'C13' - P. trifoliata x Citrus sinensis (L.) Osb. and 'Rangpur' lemon - C. limonia Osb.) and substrates (Commercial 1, 2, and 3). Plants were grown in containers (4 L) with drip irrigation system. The Commercial 2 substrate showed the best performance in inducing plant growth. The citrange 'C13' may be an alternative to the Brazilian traditional citrus rootstocks.
Citrus sp.; greenhouse; vegetative growth
