Coconut coir dust as a waste on growth of Pothos (Scindapsus aureum L.)

Purpose:

 Coir dust was utilized to manufacture soilless mixture for ornamental plant reproduction. Coconut coir provides more air and moisture to the root zone. Growing medium with coir does not shrink from container walls upon drying.

Method:

 This study was performed in a greenhouse, Institute of Agricultural Research, University of Zabol during 2019-2020; the experiment carried out on a completely randomized design with 4 treatments, 8 months of measuring and 3 replications. Treatments had contained equal volume ratio of coco peat+ rice hull; coco peat + spent mushroom compost, cocopeat + leaf mold, coco peat + perlite. Measurable factors like plant height, stem diameter, number of new leaves, fresh and dry weight of leaves and the amount of chlorophyll were assessed for comparison of pothos growth, and finally plants had compared as stated by their general form and morphology too. Characteristics were analyzed with SPSS software and mean comparisons were represented by Duncan test in P≤ 0.05.

Results:

 The findings showed that the variables such as substrate, months of measuring and their interplays had significant effects on all factors (except stem diameter). Mainly, media containing leaf-mold characteristics such as plant height, leaf number and leaf area were better than the others. The results of cocopeat + spent mushroom compost were nearly similar to cocopeat + leaf-mold, but two other media didn’t show good growth after 8 months. On the other hand, growth rate of the plants improved by warming the air from autumn to summer and the most growth rate were related to July.