Document Type : Original Article
Authors
Department of Field Crops and Medicinal Plants, College of Agricultural Engineering Sciences, Salahaddin University , Erbil-Iraq
Abstract
The purpose of this study was to measure the concentrations of leaf pigment and assess the light absorbance of fenugreek (Trigonella foenum-graecum L.) plants cultivated in two different ecologically locations while being influenced by two agronomic factors. The Grdarasha and Ankawa locations, which have different soil types and microclimates, were used for the experiment. Using a factorial design, the two components under investigation were factor A [40 , 60 and 80 kg seeds ha-1] and factor B [ 0,100,200 and 300 ppm Nano-Zn fertilizer ]. In order to ascertain absorbance at particular wavelengths (665 nm, 649 nm, and 740 nm), which correspond to chlorophyll a, chlorophyll b, and background correction, respectively, leaf samples were taken during the vegetative stage and subjected to spectrophotometric analysis. Pigment concentrations were calculated using standard equations. Results revealed significant variations in chlorophyll a, chlorophyll b, and total chlorophyll contents depending on the treatment combinations and site conditions. In general, [Factor A] enhanced chlorophyll accumulation more effectively at [Ankawa], while [Factor B] showed synergistic effects in c Standard equations were used to compute pigment concentrations. The findings showed that the amounts of chlorophyll a, chlorophyll b, and total chlorophyll varied significantly based on the site circumstances and treatment combinations. While [Factor B] had synergistic effects when combined with [Factor A] under [Ankawa Site ] conditions, [Factor A] generally improved chlorophyll accumulation more efficiently at [Grdarasha]. These results provide insights for maximizing growth and production in various agro-ecological zones by highlighting the significance of environmental context and agronomic interventions in regulating photosynthetic pigment composition in fenugreek.in conjunction with [Factor A] in the circumstances of [Sites]. These results provide insights for maximizing growth and production in various agro-ecological zones by highlighting the significance of environmental context and agronomic interventions in regulating photosynthetic pigment composition in fenugreek.
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