Abstract
The study aimed to select high-yielding, farmers-preferred quality sweet potato varieties that are suitable to grow in various environmental conditions in Bangladesh. In this context, four popular sweet potato varieties (viz., ‘BARI Mistialu-8′, ‘BARI Mistialu-12′, ‘BARI Mistialu-14′, and ‘BARI Mistialu-15′) were used in the study. These varieties were released by Bangladesh Agricultural Research Institute (BARI). In the first season (2018–2019), these varieties were evaluated at nine locations, and in the second season (2019–2020), the same varieties were tested further, but only in three locations. The trial was set up in a randomized complete block design and repeated three times. After two years of observation, it was found that the fresh root yield was varied significantly due to the environment (E), genotypes (G), and their (G × E) interaction (p ≤ 0.01) by using genotype and genotype x environment (GGE) biplot analysis. The E and G × E interaction effects were found to the greater than the genotypes effect solely. In the first year, three varieties, namely ‘BARI Mistialu-8′, ‘BARI Mistialu-12′ and ‘BARI Mistialu-14′, were identified as balanced and comparatively higher in yield in nine locations. These three varieties also showed a similar trend with respect to root yield in tested three locations in the second year. Among the four varieties, ‘BARI Mistialu-12′ was found to be the highest root yielder, followed by ‘BARI Mistialu-8′ and ‘BARI Mistialu-14′. Across the locations, these varieties showed 57.89%, 61.50% and 44.30% higher yield than the local check cultivar. Therefore, these three varieties may be recommended as the best varieties of sweet potato throughout the country.
Highlights
IntroductionSweet potato (Ipomoea batatas L.) is rich in many vitamins, minerals, and beneficial fibers [1]
Introduction conditions of the Creative CommonsSweet potato (Ipomoea batatas L.) is rich in many vitamins, minerals, and beneficial fibers [1]
The very much significant G × E impacts suggest that genotypes may turn out to be cautiously chosen for an adjustment to specific environments, which is in accord with the results of Aina et al [30] and Xu et al [31] in G × E interaction effects of Cassava genotypes, Gurmu [29] in sweet potato genotypes
Summary
Sweet potato (Ipomoea batatas L.) is rich in many vitamins, minerals, and beneficial fibers [1]. The unpretentious sweet potato’s antioxidant, vitamin, and mineral values make it a “superfood”. Calorie-wise, sweet potato is an ideal food [2]. Sustainability 2021, 13, 3730 medium potato has only 105 calories with four grams of fiber and, unless it is served with butter, zero fat [3,4]. It supplies 438% of the daily value of vitamin A and 37%
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