Screening and Evaluation of 100 Upland Rice Accessions for Developing High-Yielding Upland Rice Varieties Tolerant against Acid Soil
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Date
2022-01-19
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Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumber Daya Genetik Pertanian
Abstract
Abstract. Screening and evaluation of 100 upland rice accessions were carried out to investigate the traits that contribute to high yield. This study also aimed to provide information of rice germplasm, especially upland rice, which have high yield and tolerance against acid soils (aluminium toxicity) for further breeding purposed. The research was conducted at the Cikeumeuh Experimental Station, ICABIOGRAD, Bogor, West Java Province and Taman Bogo Experimental Station, Lampung, Lampung Province using a randomized block design with three replications. The results showed that the total spikelet number was among traits indicating high correlation and significant contribution to total sample weight. The accession with the highest total weight was Padi Plastik (21013), while the one with the highest total spikelet was Ketan Hitam (Jatim 6). The evaluation of resistance to acid land obtained five tolerant accessions, namely Rumbu A (20535), Kmadha Kedhi (20747), Segreng (Jateng 13), Local A (Jateng 14), and Marus A (Jateng 18). Clustering of 100 upland rice has grouped the accessions into three clusters where the Ketan Putih rice (Jatim 44) was the accession with the most different characteristics of flowering age and total spikelet than the others. The results of this study might be
used as a reference for developing upland rice varieties with high yield potential and tolerance to acid soil.
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Keywords
Rice, breeding, acid soils