International Potato Center (CIP-SSA), Kampala, Uganda.
Department of Consumer and Food Sciences, University of Pretoria, Pretoria, South Africa.
J Sci Food Agric. 2024 Jun;104(8):4615-4625. doi: 10.1002/jsfa.12883. Epub 2023 Aug 8.
Previously, a lexicon and protocol for quantitative descriptive analysis (QDA) was established for the Uganda sweetpotato breeding program. The implication of QDA scores for priority sensory attributes on consumer preference should be determined to interpret results efficiently and make decisions effectively. The present study aimed to develop a gender-responsive decision tree to obtain an overall sweetpotato eating quality score to facilitate demand-led targeted breeding selection. It focused on Kamuli and Hoima districts (Uganda) and uses pre-lease advanced clones ('NKB3', 'NKB105', 'NKB135', 'D11' and 'D20'), released varieties ('NASPOT 8' and 'NAROSPOT 1') and landraces ('Muwulu-Aduduma', 'Umbrella').
Including boiled sweetpotato sensory characteristics, namely mealy, sweet taste, sweetpotato smell, firm and not fibrous, in breeding design would benefit end-users, especially women given their role in varietal selection, food preparation and marketing. 'D20', 'NASPOT 8' and 'NAROSPOT 1' were most liked in both districts. 'NKB3' and 'D11' were the least liked in Hoima, whereas 'Muwulu-Aduduma' was the least liked in Kamuli. There was a positive correlation between color and overall liking (r = 0.8) and consumers liked the color (average rating ≥ 6 on a nine-point hedonic scale) of all genotypes. Threshold values (average rating on 11-point scales) for consumer acceptability were identified (sweet taste = 6, sweetpotato aroma and flavor = 6, firmness = 3, and mealiness = 4). A regression decision tree tool was created to calculate an eating quality selection index when screening lines in breeding programs using the values.
Decision trees that include consumer needs and gender considerations would facilitate demand-led breeding and make varietal selection in sweetpotato breeding programs more effective. © 2023 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
此前，乌干达甜薯育种计划建立了一个用于定量描述分析 (QDA) 的词汇和方案。为了有效地解释结果并做出决策，应该确定 QDA 评分对消费者偏好的优先感官属性的含义。本研究旨在开发一个对性别敏感的决策树，以获得整体甜薯食用品质评分，从而促进以需求为导向的有针对性的育种选择。它专注于卡穆利和霍伊马地区（乌干达），并使用预租先进克隆体（“NKB3”、“NKB105”、“NKB135”、“D11”和“D20”）、发布的品种（“NASPOT 8”和“NAROSPOT 1”）和地方品种（“Muwulu-Aduduma”、“Umbrella”）。
在育种设计中包含甜薯感官特征，即粉状、甜味、甜薯气味、结实且不纤维状，将使最终用户受益，特别是在品种选择、食品准备和营销方面发挥作用的女性。在两个地区，“D20”、“NASPOT 8”和“NAROSPOT 1”最受欢迎。在霍伊马，“NKB3”和“D11”最不受欢迎，而在卡穆利，“Muwulu-Aduduma”最不受欢迎。颜色与整体喜好呈正相关（r=0.8），消费者喜欢所有基因型的颜色（九分愉悦量表上的平均评分≥6）。消费者可接受性的阈值值（十一分刻度上的平均评分）已确定（甜味=6、甜薯香气和风味=6、结实度=3、粉状=4）。创建了一个回归决策树工具，用于在使用这些值筛选育种计划中的品系时计算食用品质选择指数。
包含消费者需求和性别考虑的决策树将促进以需求为导向的育种，并使甜薯育种计划中的品种选择更加有效。 © 2023 作者。《食品科学杂志》由 John Wiley & Sons Ltd 代表化学工业协会出版。
