Generally, solar radiation intercepted by the crop increases with increasing planting density (Papadopoulos and Ormrod, 1988a).
It is often observed that higher planting density has higher total yield, but many studies also show that flowering number, fruit set per plant and single fruit weight of tomato are lower when planting
density is too high, which in turn results in lower yield of an individualplant (Agele et al., 1999; Amundson et al., 2012; Kirimi et al.,2012).