Author/Authors :
Embrandiri، Asha نويسنده Environmental Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia , , Rupani، Parveen Fatemeh نويسنده Environmental Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800, Penang, Malaysia , , Ismail، Sultan Ahmed نويسنده Department of Biotechnology, The New College, Chennai 600014, India , , Singh، Rajeev Pratap نويسنده Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi 221005 India , , Ibrahim، M. Hakimi نويسنده School of Industrial Technology, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia , , Abd. Kadir، Mohd. Omar b. نويسنده School of Industrial Technology, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia ,
Abstract :
Purpose Research has shown that oil palm decanter cake
(DC) serves as a potential source of nutrients for plant
growth. This study therefore investigated the applicability
of decanter cake (DC) as an amendment to soil for the
growth of Solanum melongena (brinjal) at three ratios 10,
20, 30 % DC and suitable controls (0 %).
Methods Seeds of brinjal were sown in soils amended
with decanter cake at 10, 20, 30 % w/w and 0 % as control.
Nutrient enrichment factors were calculated from the
concentration of selected metals (Cu, Ca, Fe, Zn and Mg)
in plant parts. The scanning electron micrographs were also
taken to measure the stomatal opening/closing due to the
effect of excess nutrients on the leaf structure.
Results Enrichment factor (EF) values in this study were
all below 3 indicating low enrichment of metal ions from
soil to plants. SEM studies of the leaf epidermis of the test
plants revealed the closure of guard cells with increasing
decanter cake treatments.
Conclusions Decanter cake at 20 % amendments with
soil could serve as a source of soil amendment for cultivation of S. melongena plants
