Studies on The Essential Trace Elements on The Growth and Yield of Two Solanaceous Plants

The effect of essential trace elements on the growth of leaves, flowers and fruits yield components of Solanum melongena L. (egg plant) and Capsicum annum L. (Chili Pepper) by foliar application were studied.
Foliar micronutrients were prepared in the laboratories and compared with a standard sample. The trials were conducted in the experimental farm of PCSIR Laboratories Complex, Karachi in April, 1993. The crop was harvested four months later in August. One set of experiment was kept as controls and were sprayed with equivalent quantity of water.
In the treated plants the flowering and fruiting took place twenty days earlier as compared to the controls. The treated plants bore more fruits and their sizes were also bigger than those of the control series.
The analysis of variance means reveals that in treated sets the growth factors had significant difference at both levels (p<0.05 and p<0.01) as compared with the control. The role of trace elements on the growth of plants by foliar application has been discussed.