TY - JOUR A2 - Clay, David AU - Birhanu Abegaz, Silamlak AU - Hailu tesema, Faris PY - 2021 DA - 2011/03/15 TI -农民对高粱使用的感知(高粱二色的(l)SP - 3601897 VL - 2021 AB -遗传侵蚀可导致高粱地方品种遗传多样性的丧失。在研究区，虽然普遍认为发生了遗传侵蚀，但没有关于其数量和程度的数据。因此，本研究旨在评估农户对高粱地方品种的使用及其遗传侵蚀的认知，并找出替代高粱地方品种的建议原因。为此，在2006 - 2015/2016年主要种植季节，对三个地区(Tenta、Mekdela和Delanta)随机抽取的1200名农民进行了实地调查。采用结构式问卷调查、集中小组讨论、关键信息提供者访谈和现场观察等方法收集数据。此外，1980年收集的样本数据来自埃塞俄比亚生物多样性研究所(EBI)。高粱地方品种历史剖面分析表明，在过去的30多年里，当地农民对高粱地方品种的利用具有深刻的认识。然而，由于农民描述的选择标准不同，有减少的趋势。“Kokita”、“Merar”、“Marchuke”、“Tinkish”(“Necho-Tinkish”和“Jofa-Tinkish”除外)和“Fesho”被当地农民完全排除在外(丢失)。 The interviewed farmers indicated that genetic erosion had occurred. Genetic erosion of 100% was observed in white sorghum in Mekdela and 66.7% in Delanta and Tenta districts. Likewise, genetic erosion of red sorghum, 25%, 20%, and 75%, respectively, was detected in Tenta, Mekdela, and Delanta. For yellow sorghum grains, genetic erosion was 33.4% in Tenta and 66.7% in Mekdela and Delanta. Genetic erosion for “Tinkish” was found to be 66.7% in Tenta and 50% in Mekdela and Delanta. Based on farmer responses, genetic erosion was attributed to reduced benefits from landraces, drought, climate change, market price and demand, and reduction in land size. The actions of both natural and conscious selection on farm were also discussed in detail as genetic erosion scenarios. Therefore, attention should be given to conservation of farmers’ varieties in which involving farmers’ participation is very important in order to use their indigenous knowledge for conservation of FVs and on-farm conservation strategies should be practiced for FV sustainable use. Thus, genetic resource conservation is attained. SN - 1687-8159 UR - https://doi.org/10.1155/2021/3601897 DO - 10.1155/2021/3601897 JF - International Journal of Agronomy PB - Hindawi KW - ER -