Effect of Adding Micronutrients and Seaweed Extract on The Shoot, Root and Chemical Growth Characteristics of Petunia hybrida

Abstract

Micronutrient fertilization is important in plant life and its development, as it affects the physiological processes. This study aimed to know the effects of adding micronutrients and seaweed extract on the characteristics of the Petunia hybrida plant. The experiment was conducted in the Department of Horticulture and Landscape Engineering greenhouse at the College of Agriculture, University of Anbar, from November 2023 to April 2024. Two factors adding micronutrient factor 1 (T) at (0, 0.5, 1, and 1.5) ml L-1 concentrations and seaweed extract factor 2 (O) at three concentrations (0, 1, and 2) gm L-1 in two batches within a Randomized Complete Block Design according to the least significant difference test (5%). The results show that T and O significantly affected shoot, root, and chemical growth characteristics at the concentration of T4 and O3. T4 had a clear, important effect on improving the leaves number, as it increased from 134.1 to 186.6 leaf plant-1. T4 had a clear effect on increasing the fresh weight of the shoot systems, as it increased from 36.2 to 57.0 gm fresh weight shoot system. The interaction between T4 and O3, showed a high effect on all these characteristics compared to zero concentrations. O3 alone was significantly superior to all the study characteristics ​​compared to O1, which gave the lowest significant difference. T4O3 was superior to all the study characteristics by providing the highest values. On the contrary, T1 O1 showed the lowest significant difference regarding the studied Petunia hybrida characteristics.

Keywords

• Fertilization
• Greenhouse
• Petunia hybrida
• Plant Growth
• Seaweed Extract