Studying the action of plant growth under varying nutrient supplies to comprehend their survival tactics is enlightening. The purpose of the experiment by Xie et al. was to examine the influence of slowly increasing quantities of nutrients on the growth, nutrient acquirement, and resource apportionment of water hyacinth in aquaria under the provision of one gradually rising and two steady amounts of nutrients (257-265). The experimental (quantitative) method was used in the study where data was analyzed using the analysis of variance, one-way ANOVA, and with the help of the SPSS software version 11.0. The application of the least significant difference enabled the undertaking of numerous evaluations at the 0.05 significance level. After eight weeks, the results were that ramet number, the quantity of plant P and N, and plant biomass were roughly equal after growth on the media where the amounts of nutrients were gradually increased and where they were constantly high. There was a continued decline in the fraction of the below and above-ground biomass in the course of the experiment after nutrient levels were frequently raised, apart from the two stable nutrient supplies. The comparative apportionments of nitrogen (N) and biomass to the leaves, leaf stalks, and roots were not influenced by the nutrient supply although the phosphorus (P) proportion varied considerably between nutrient supplies. The conclusions drawn from the experiment were that plant growth is inducible, and water hyacinth can control biomass allotment to maximize resource supply in a habitat with rising nutrient levels.
Xie, Yonghong, Mingzhang Wen, Dan Yu, and Yongke Li. “Growth and resource allocation of water hyacinth as affected by gradually increasing nutrient concentrations.” Aquatic Botany 79.3 (2004): 257-266.