INFLUENCE OF DIFFERENT ORGANIC AMENDMENTS ON THE MORPHOLOGICAL AND GROWTH CHARACTERISTICS OF ANTIRRHINUM MAJUS L

Abstract

This study was conducted to assess the effects of various potting media amendments with differing compositions on the growth and flowering of Antirrhinum majus L. Statistical analysis of physiological data indicated that the different media combinations significantly influenced plant performance compared to the control. Each treatment included 10 plants with three replications, and multiple growth parameters were evaluated under the various potting formulations.

The results showed marked improvements in both vegetative and reproductive growth when a leaf mold–based potting medium was combined with farmyard manure. Among the tested combinations, the medium containing farmyard manure, leaf mold, topsoil, and silt (T₄; 1:0.5:0.5:1) and the higher pH medium with farmyard manure and silt (T₃) were less effective. In contrast, combinations that included silt with topsoil or leaf mold positively influenced plant growth and flowering.

These findings suggest that leaf mold is an effective and reliable potting medium for promoting optimal growth and flowering in Antirrhinum majus L.