Abstract
Rhizobium is a widely acknowledged bacterium due to its symbiotic relationship, particularly with leguminous forages. It forms nodules, a specialized structure, in approximately 90% of the Fabaceae family and exhibits various methods to enhance soil fertility. Rhizobium can form a symbiotic relationship with non-leguminous plants due to its exceptional colonization abilities, which can contribute to enhanced crop growth. Physiological precursors are utilized in conjunction with rhizobium due to their superior water solubility, consistent hormone supply, and cost-effectiveness. The aim of this investigation was to assess the impact of precursor, both with and without Tryptamine, on the growth parameters of maize. A total of six treatments consisting of tryptamine dilutions were planned for the experiment. The findings indicate that Tryptamine @ 10-4 (T5) resulted in the greatest shoot length (43.6 cm), fresh weight (11.78 g) and dry weight (1.67 g), root length (36 cm), fresh weight (4.91 g) and dry weight (1.99 g), as well as chlorophyll (a) and (b) levels (1.05 and 0.77 mg g-1). The efficacy of precursor application has been determined and warrants further examination in diverse ecologies.
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