Print version ISSN 0103-9016On-line version ISSN 1678-992X
CASTRO, P.R.C.; PACHECO, A.C. and MEDINA, C.L.. EFEITOS DE STIMULATE E DE MICRO-CITROS NO DESENVOLVIMENTO VEGETATIVO E NA PRODUTIVIDADE DA LARANJEIRA `PÊRA' (Citrus sinensis L. Osbeck) . Sci. agric. [online]. 1998, vol.55, n.2, pp.338-341. ISSN 0103-9016. http://dx.doi.org/10.1590/S0103-90161998000200026.
The effects of the plant growth regulator Stimulate and of fertilizer Microcitros applications were evaluated on sprout number, stem length and fruit set of Citrus sinensis L. Osbeck cv. `Pera' sweet orange trees, grafted on `Rangpur' lime, in a Typic Haplorthox soil, in Holambra, São Paulo State, Brazil. On February 13, April 22 and June 17, six year old `Pera' trees were sprayed with Stimulate (1,2 and 4L. ha-1), Stimulate 2L. ha-1 + Micro-Citrus, Micro-Citrus and control treatment. A completely randomized design was used with 10 replications and one tree per plot. Four ramifications were marked in each tree for the biometrical determinations (April 22 and September 23/96). Stimulate (1L.ha-1) increased shoot number 69 days after the 1st. application and increased the mean weight of fruits per tree.
Keywords : plant stimulant; nutrition; citrus .