Evaluation and character association study for tuber yield, biochemical and antioxidant properties of sweet potato (Ipomoea batatas)

• Published in: The Indian journal of agricultural sciences 2024-11, Vol.94 (11), p.1219-1225
• Main Authors: TALANG, H D, JHA, A K, DEVI, M B, MAWLONG, G T, BIAM, KAMNI P, MAWLEIN, J, RYMBAI, H, VERMA, V K, LYNGDOH, B, HAZARIKA, S
• Format: Article
• Language: English
• Subjects: Accessions, Antioxidant, Biochemical, Sweet potato, Yield
• ISSN: 0019-5022; 2394-3319
• DOI: 10.56093/ijas.v94i11.152271

A study was carried out during 2022 and 2023 at ICAR-Research Complex for North-Eastern Hill Region, Umiam, Meghalaya to evaluate the yield, biochemical and antioxidant properties of 49 accessions of sweet potato [Ipomoea batatas (L.) Lam.] in mid hill condition of north-eastern region. The experiment was laid out in randomized block design (RBD) with 3 replications. Results indicate that Mynthlu Orange exhibited the highest tuber weight, length, diameter and yield. In terms of biochemical parameters, Meghalaya Local recorded the highest dry matter content; Col-6 recorded the highest starch content; and X-24 had the highest total sugar content. Among antioxidants, X-24 showed the highest total phenolic content, highest FRAP assay value and anthocyanin with lowest IC50 value which signified that X-24 had the highest antioxidant activity. Correlation study revealed significant positive correlation of tuber yield with tuber weight, diameter and total anthocyanin. Based on the mean performance, accessions Mynthlu Orange, X-24 and Col-6 were found promising for yield, biochemical and antioxidant parameters.