Effect of Seaweed Extract and Fertilization NPK On the Growth of Bougainvillea Dwarf Pink Plant

Abstract

The study aimed to reveal the effect of adding seaweed extract and macronutrients NPK on the growth characteristics of Bougainvillea Dwarf Pink. The experiment was conducted using a Randomized Complete Block Design (RCBD) and least significant difference (LSD) test at 0.05. The experiment was conducted during the 2023 and 2024 seasons in greenhouses at the College of Agriculture, University of Anbar. The seaweed extract was applied at concentrations of (0, 0.5 and 1 g L-1) and NPK at (0, 0.5 and 1 g L-1) and their interaction on seedlings of Bougainvillea Dwarf Pink. The results showed that C2 was significantly regarding the characteristics of leaf fresh and dry weight, chlorophyll pigment content in leaves, total number of bracts, and carotene content in bracts. For plant height, G2 to the highest results, as well as for leaf characteristics (fresh and dry weight, and chlorophyll pigment concentration). As for the interaction, C3G2 gave the highest significant difference in plant height, C1G3 the highest value in stem diameter and leaf area, while C2G2 was superior in leaf fresh weight, bract head numbers, total bract numbers, and concentration of carotene in bracts. Likewise, C2G1 in dry leaf weight and C2G3 chlorophyll pigment concentration in the leaves. Whereas, C1 G1 gave the lowest significant difference in all growth characterize (vegetative, bracts, and chemical).

Keywords

• Bougainvillea
• Fertilization
• NPK
• Macronutrients
• Seaweed Extract