Cattley guava seedlings were produced through seeds obtained from collected fruits in the sandbank region of Sao Joao da Barra--RJ and, also, fruits collected from urban trees at the Campos dos Goytacazes city--RJ.
In general, flower buds' tumescence occurred before on the guava cultivars and the AS and AU cattley guava (Table 1).
On the May 2012 pruning, full flowering occurred at the same period for the guava genotypes and the AR and AU cattley guava genotypes, next to the 84 days after pruning.
After the March 2013 pruning, there was a tendency for the cattley guava trees to be even with the guava regarding the number of buds sprouted, although the AU cattley guava was the only with larger number of buds sprouted, when compared to the guava.
cattleianum fruits occurred between October and February, and the March pruning was right after this harvest, what might have influenced the pruning response for most of the evaluated genotypes, both for guavas and cattley guava.
Among the genotypes was observed that, in average, Cortibel 4 and Cortibel 6 guavas had the least number of buds when compared to the AU cattley guava, that, even not differing from the other genotypes concerning this characteristic, considering the average of two pruning seasons.
The cattley guava pruning stimulated fructification of all three evaluated genotypes after the May pruning and two genotypes for the March pruning.
Grafting guava on cattley guava resistant to Meloidogyne enterolobii.
4 months after sowing, for the guava grafted on guava and for accessions 117 and 115 on cattley guava plants, respectively.
The lowest vigor in height was observed for the guava grafted on accessions 117 and subsequently for 115 cattley guava rootstocks.
It was observed that using cattley guava plants as rootstocks led to smaller canopy volume, contrasted with the treatments used as controls, and this corroborates the initial incompatibility observed (Figure 4).
In the field, symptoms of nutrient deficiencies were observed in plants grafted on cattley guava plants, including falling leaves and cracks in the bark of the rootstock, while the controls did not present such symptoms.
Sabine' plants, low sapling vigor in the field and symptoms of incompatibility demonstrate unviability for the use of cattley guava accessions as rootstock for 'Paluma' guava.