“…Many studies, performed on different plants, suggest various hypotheses for low fruiting. Among them are: a shortage or lack of pollinators (Manente-Balestieri and Machado, 1999;Paiva et al, 1999;Kiill and Drumond, 2001;Tavares et al, 2002;Nogueira and Arruda, 2006;Petri et al, 2008), unavailability of nutrients in the soil (Ferreira et al, 2003), herbivory and predation affecting the production and flower or fruit viability (ManenteBalestieri and Machado, 1999;Vieira and Grabalos, 2003;Nogueira and Arruda, 2006;Carvalho et al, 2007;Aguiar and Gaglianone, 2008), lack of resources available on the plant (Manente-Balestieri and Machado, 1999;Vieira and Grabalos, 2003;Nogueira and Arruda, 2006;Carvalho et al, 2007;Aguiar and Gaglianone, 2008), selfpollination, since the species are normally cross-pollinated (Nogueira and Arruda, 2006) and abiotic factors such as temperature, humidity and precipitation (Ferreira et al, 2003;Nogueira and Arruda, 2006;Pereira and Mayer, 2008). Soil characteristics such as pH, aeration, temperature and nutrient availability may also directly affect the plants reproductive success by influencing the production and viability of the fruits (Ferreira et al, 2003).…”