Phenotypic Variation of Local Rice in West Java, Indonesia
Iskandar Ishaq (1*), Rahma Ayu Priani (2), Muhammad Luthfan Haziman (3), Zuraida Yursak (1), Yanto Surdianto (1), I Gusti Komang Dana Arsana (1), Agus Ruswandi (4), Nana Sutrisna (1), Aji Winara (4), Abdul Azis (1) Muhammad Abdillah Hasan Qonit (3)

1 Research Center for Food Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency Republic of Indonesia (BRIN).
*iskandarishaq[at]yahoo.co.id
2 West Java Assessment Institute for Agricultural Technology (BPTP Jawa Barat), Indonesia
3 Department of Food Industrial Technology, Faculty of Agro-Industrial Technology, University of Padjadjaran, Indonesia
4 Research and Development Agency of West Java Province (BP2D), Indonesia.

Abstract

Rice is the leading staple food in Indonesia and one of the largest production centers in West Java Province. Of the wide local varieties of rice in West Java, only a few have been inventoried and characterized for their morphological characteristics. This study aims to determine West Java^s phenotypic diversity of rice plants. Inventory and morphological characterization of local rice plants was carried out from 2018 to 2021 in seven districts in West Java (Sukabumi, Subang, Cianjur, Sumedang, Bogor, Tasikmalaya, and Bandung). A total of 30 accessions of local rice were observed based on Rice Descriptors. Data analysis used Principal Component Analysis (PCA) and Cluster Analysis with Minitab 21. The results showed that the seven main components contributed to the proportion of diversity of 83.7%. The local rice varieties in the five groups had a degree of similarity of 30%. The characters of leaf blade length, ligule length, ligule color, stem diameter, panicle extrusion, and the presence of awn contributed the most to the total diversity.

Keywords: Plant Genetic Resources- Local Rice- Phenotypic- Diversity

Topic: Biodiversity, soil health and agricultural practices