Coconut Water and Rice Wash Water as Natural Priming Agents for Enhancing Mung Bean (Vigna radiata L.) Germination
DOI:
https://doi.org/10.21831/ijobi.v4i1.2775Keywords:
Coconut water, Rice washing water, Soaking duration, Germination, Mung bean (Vigna radiata L.)Abstract
Seed germination is a critical early stage that determines the success of subsequent plant growth. However, seed germination quality is often influenced by suboptimal pre-treatment conditions, including the composition of the soaking solution and soaking duration. This study aimed to determine the effects of different coconut water and rice washing water concentrations and soaking duration on the growth of mung bean (Vigna radiata L.) seedlings, as indicated by radicle length. A factorial experimental design was employed with two factors: coconut water and rice washing water concentrations (10%:90%, 20%:80%, 50%:50%, 80%:20%, 90%:10%, and 100% coconut water) and soaking duration (2, 4, and 6 h). Data were analyzed using analysis of variance (ANOVA), followed by Tukey's HSD test at a 5% significance level. The results showed that soaking solution concentration significantly affected radicle length (p < 0.001), whereas soaking duration had no significant effect (p = 0.285). However, a significant interaction between the two factors was observed (p = 0.049). The treatment with 100% coconut water and a soaking duration of 4 h produced the greatest radicle length (4.71 cm), whereas the treatment with 90% coconut water and 10% rice washing water produced the lowest radicle length. These findings indicate that selecting an appropriate soaking solution composition, particularly the use of coconut water, may provide a natural alternative for enhancing the early growth of mung bean seedlings.
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