Laboratory of Biotechnology, Genetic Resources and Plant and Animal Breeding (BIORAVE), National High School of Applied Biosciences and Biotechnologies (ENSBBA/UNSTIM), Dassa-Zoumé, Benin.
Laboratory of Applied Entomology (LEnA), National High School of Applied Biosciences and Biotechnologies (ENSBBA), National University of Sciences, Technologies, Engineering and Mathematics, Dassa, Benin.
PLoS One. 2022 Aug 17;17(8):e0273043. doi: 10.1371/journal.pone.0273043. eCollection 2022.
To meet the high demand for white Guinea yam, there is a need to develop and release improved varieties to farmers. Unfortunately, low rate of adoption of most of the improved yam varieties by both producers and consumers was observed. Information regarding agronomic characteristics and food qualities of popular white Guinea yam landraces with high market value are not available to establish minimum standards to be considered by breeding programs. To fill this gap, surveys using rural appraisal tools were carried out in 20 villages and 16 markets throughout Benin. Data on the agronomic performance suggested that for an improved variety to be adopted by Beninese farmers it should have a minimum yield of 4.16 ± 0.15 kg per mound, and average number of marketable tubers of 1.23 ± 0.05, a mean tuber length of 36.41 ± 1.22 cm, and a minimum diameter of 25.44 ± 1.16 cm. The sensorial attributes for boiled and pounded tubers of this improved variety should have minimum score of 3.16 for texture, 0.75 for softness, 3.75 for elasticity, and 1.34 for colour during the sensory evaluation. The improved variety must also have a minimum average severity score of 1.1 for yam mosaic virus disease, 1.33 for anthracnose and 1 for nematodes. Landraces Amoula, Laboko, and Djilaadja should be considered as the standard for yield, sensory attributes, and tolerance to pest and diseases while landraces Danwari, Kodjewe, Mondji, and Gnidou should be characterized as possessing good flowering and fruit setting capacities for breeding programs.
为了满足对白果芋的高需求，有必要向农民开发和推出改良品种。然而，大多数改良芋品种的生产者和消费者的采用率都很低。由于缺乏关于具有高市场价值的受欢迎的白果芋地方品种的农艺特性和食品质量信息，无法为育种计划制定被认为是最低标准的依据。为了填补这一空白，在贝宁的 20 个村庄和 16 个市场使用农村评估工具进行了调查。农艺表现数据表明，为了使贝宁农民采用改良品种，它的产量应至少为每墩 4.16±0.15 公斤，平均可销售块茎数为 1.23±0.05，平均块茎长度为 36.41±1.22 厘米，最小直径为 25.44±1.16 厘米。这种改良品种的煮熟和捣碎块茎的感官属性的最低得分应为：质地 3.16、柔软度 0.75、弹性 3.75 和颜色 1.34。在感官评价期间，改良品种也必须具有最低平均严重程度得分为 1.1 的芋花叶病毒病、1.33 的炭疽病和 1 的线虫病。Amoula、Laboko 和 Djilaadja 地方品种应被视为产量、感官属性和对病虫害的耐受性的标准，而 Danwari、Kodjewe、Mondji 和 Gnidou 地方品种应具有良好的开花和结实能力，用于育种计划。
