Yield performance and trait correlation of BARI released sweet potato varieties studied under several districts of Bangladesh

Zakaria Alam; Sanjida Akter; Md Anwar Hossain Khan; Md Shamshul Alam; Shamima Sultana; Sohela Akhter; Md Mizanur Rahman; Md Mazadul Islam

doi:10.1016/j.heliyon.2023.e18203

Yield performance and trait correlation of BARI released sweet potato varieties studied under several districts of Bangladesh

Heliyon. 2023 Jul 12;9(7):e18203. doi: 10.1016/j.heliyon.2023.e18203. eCollection 2023 Jul.

Authors

Zakaria Alam¹, Sanjida Akter², Md Anwar Hossain Khan¹, Md Shamshul Alam¹, Shamima Sultana³, Sohela Akhter¹, Md Mizanur Rahman⁴, Md Mazadul Islam¹

Affiliations

¹ Tuber Crops Research Centre, Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh.
² Entomology Division, Bangladesh Rice Research Institute (BRRI), Gazipur, Bangladesh.
³ Regional Agricultural Research Station, BARI, Cumilla, Bangladesh.
⁴ On Farm Research Division, BARI, Sherpur, Bangladesh.

Abstract

A study was carried out in five sweet potato growing regions of Bangladesh, each characterized by suitable agro-ecologies, in order to demonstrate the most favorable varietal performance and trait correlations. A completely randomized block design with three replications was used to compare the varietal performance of BARI (Bangladesh Agricultural Research Institute) released sweet potato varieties (viz. BARI Mistialu-9, BARI Mistialu-10, BARI Mistialu-12, BARI Mistialu-15 and BARI Mistialu-17). During the 2021-22 cropping season, sweet potato varieties were tested in five districts of Bangladesh, namely Gazipur, Bogura, Jamalpur, Jashore, and Chattogram. The findings revealed that the BARI Mistialu-12 variety exhibited remarkable attributes, including a high marketable storage root yield of 39.88 t/ha. Additionally, it demonstrated exceptional performance in various yield components such as vine length, average storage root weight, and dry weight of the root. Furthermore, a positive correlation was observed between several traits and yield, as well as yield-attributing characteristics. This correlation suggests that enhancing these traits could potentially contribute to an overall increase in the storage root yield of sweet potatoes.

Keywords: BARI Mistialu; Correlation; Marketable storage root yield; Sweet potato; Yield.