1Department of Biology, Faculty of Mathematics and Natural Sciences University of Sam Ratulangi, North SulawesiIndonesia.
2Department of Chemistry, Faculty of Mathematics and Natural Sciences University of Manado State, North SulawesiIndonesia.
3Department of Physics, Faculty of Mathematics and Natural Sciences University of Manado State, North SulawesiIndonesia.
4Department of Agricultural Cultivation, Faculty of Agriculture University of Sam Ratulangi, North SulawesiIndonesia.
*Corresponding Author: Henny Lieke Rampe, Department of Biology, Faculty of Mathematics and Natural Sciences University of Sam Ratulangi, North SulawesiIndonesia. Email: hennyrampe@unsrat.ac.id
Genetic diversity also determines a population’s success in adapting to changing environments. Genetic diversity and kinship relationships can be analysed through morphological character markers, which help avoid duplication and germplasm collection. To optimise the genetic expression of a plant, including morphological characters, methyl jasmonate and salicylic acid elicitors can be used to induce the process.
The objectives of this research are 1) to describe the morphological characteristics of sweet potato varieties cultivated by farmers in Tomohon City, 2) to analyse the genetic diversity and kinship relationships of sweet potato plants based on morphological characters after induction of the elicitors methyl jasmonate and salicylic acid. Research stages: 1) Sweet potato collection, 2) Planting sweet potato tubers and cuttings, 3) Making beds and fertilising Petroganik, 4) Application of elicitor methyl jasmonate 60 ppm and salicylic acid 0.45 g/L carried out at 15 days after planting (DAP) and 30 DAP and observed morphological characters at 50 DAP. Qualitative and quantitative morphological data were analysed for kinship relationships using SPSS version 25. The stages of cluster analysis are: 1) Scoring qualitative morphological data, 2) Determining the minimum and maximum number of clusters, 3) Cluster analysis using the intergroup relationship method produces a dendogram, 4) Interpreting the analysis results.
The results of research in Tomohon City obtained seven varieties of sweet potato, namely the Local purple variety (UJ1), Local white variety (UJ2), Cilembu variety (UJ3), Antin 1 variety (UJ4), Sarwentar variety (UJ5), Dungkul variety (UJ6) and Sari variety (UJ7). The results of kinship analysis based on qualitative morphological characters in the form of a dendrogram formed two main groups. Two clusters were formed, namely cluster 1 consisting of UJ1, UJ2 and UJ3 and cluster 2 consisting of UJ4, UJ5, UJ6 and UJ7. Two clusters of quantitative morphological characters were formed: cluster 1, comprising UJ1, UJ2, UJ3, UJ4 and UJ6 and cluster 2 comprising UJ5 and UJ7.
Elicitors, Ipomoea batatas, Morphological characters
