ALLELOPATHIC EFFECT OF PSEUDOMONAS FLUORESCENS (PF 083) ON COTTON WEED SORGHUM HALEPENSE (L.) Pres
ALLELOPATHIC EFFECT OF PSEUDOMONAS FLUORESCENS (PF 083) ON COTTON WEED SORGHUM HALEPENSE (L.) Pres
DOI:
https://doi.org/10.46662/plantarum.v6i2.110Abstract
Cotton (Gossypium hirsutum L.) belongs to the Malvaceae (mellow) family of plants. It is one among Pakistan's main
crops. Cotton can also provide the raw materials for textiles, apparel, vegetable oil, and animal feed. Pakistan is the
third-largest buyer of raw cotton in the world and the fourth-largest producer of cotton worldwide. By releasing
specific chemical components into the environment, one plant can have both direct and indirect, distinct negative and
positive impacts on another plant. This phenomenon is known as alleloopathy. One of the principal weeds with
significant allelopathic power is Johnson grass (Sorghum halepense (L.) Pres). S. halepense, is one of the most
pervasive and upsetting weeds. From low to high concentrations, allelochemicals in S. halepense leaf extract affect
and inhibit cotton seed development rate, fresh and dry biomass and seedling length. Biological method in order to
lessen the cotton allelopathic stress and to promote the growth of cotton seeds, Pseudomonas fluorescene (PF 083)
acts as both a bioherbicide and a Plant Growth Promoting Rhizobacteria (PGPR). Cotton seed germination (70%),
seedling length (20%), fresh seedling biomass (90%), and dried seedling biomass (45%) all increased with the addition
of Pseudomonas PGPR PF083. The current study revealed that Johnson grass strong allelopathic effects significantly
surpassed by Pseudomonas fluorescene (PF083).