<![CDATA[This study aimed to compare the growth of green spinach (Amaranthus hybridus L.) cultivated in two different soil types originating from Java and Kalimantan, and to analyze the effect of soil pH on plant height. The research was conducted for 21 days (3–24 November 2025) using a comparative experimental design with a total of eight samples (four plants in each group). The observed parameters included soil pH, plant height, number of leaves, leaf width, and leaf color. Environmental variables such as light intensity, water volume, pot size, and seed quantity were controlled to maintain consistent experimental conditions. Data were analyzed using assumption tests (Shapiro–Wilk normality test and Levene’s homogeneity test), linear regression analysis, and analysis of covariance (ANCOVA). The results showed that the data were normally distributed (p = 0.328) and homogeneous (p = 0.575). Regression analysis indicated that soil pH had a significant effect on plant height (p = 0.026), whereas soil type did not show a significant effect after controlling for soil pH (ANCOVA, p = 0.089). The mean difference in plant height between soils from Java and Kalimantan was 2.90 cm; however, this difference was not statistically significant. These findings suggest that the growth of green spinach, particularly plant height, is more strongly influenced by environmental factors—especially soil pH—than by differences in soil origin.]]>
Copyrights © 2026
