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首页> 外文期刊>Genetic Resources and Crop Evolution >Diversity of cassava (Manihot esculenta Crantz) cultivars and its management in the department of Bouenza in the Republic of Congo
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Diversity of cassava (Manihot esculenta Crantz) cultivars and its management in the department of Bouenza in the Republic of Congo

机译：刚果共和国布恩扎省木薯（Manihot esculenta Crantz）品种的多样性及其管理

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Cassava (Manihot esculenta Crantz) is one of the most produced and consumed food crops in the Republic of Congo. To assess the diversity and understand the traditional management of its cultivars in the department of Bouenza, twenty-one villages randomly selected from nine ethnic zones were surveyed using participatory rural appraisal. Altogether, 86 land races cultivars were recorded and further grouped into 36 types based on their agronomic and culinary characteristics. The number of cultivars accessed varied from 6 to 21 per village (13 on average) and from 1 to 11 (4 on average) per household. Their distribution and extent analysis revealed some worrying rates of cultivar loss in the range of 7.41–66.67% (32.06% on average) per village. The reasons of cultivars abandonment, the folk nomenclature and the traditional cutting supply system and planting techniques were documented and their importance in terms of genetic resources conservation and utilisation are discussed. Twenty farmers’ cultivar preference criteria were identified and prioritised. Their relative importances were examined across ethnic groups. Among them, the most important were yield, taste, cossette quality and root size which account for 72.39% of the total responses. The study revealed that most of the farmers did not consider the importance of the sexual reproduction in the cultivar diversification and the impact of cassava mosaic disease on the productivity of the infested plants. Awareness efforts and extension of the study to other cassava production zones were recommended for food security needs in Congo. To clarify synonym, morphological classification and molecular analysis were also suggested.
机译：木薯（Manihot esculenta Crantz）是刚果共和国生产和消费最多的粮食作物之一。为了评估多样性并了解布恩扎省其栽培品种的传统管理方式，使用参与式农村评估方法对来自9个民族地区的21个村庄进行了调查。总共记录了86个陆地种族的品种，并根据其农艺和烹饪特性将其进一步分为36种。每个村庄获得的品种数量从每个村庄6到21个（平均13个）和每个家庭从1到11个（平均4个）不等。他们的分布和程度分析显示，每个村庄的品种损失率令人担忧，范围为7.41-66.67％（平均32.06％）。记录了品种放弃的原因，民间术语以及传统的cutting割供应系统和种植技术，并讨论了它们在遗传资源保存和利用方面的重要性。确定并确定了20个农民的品种喜好标准并确定了优先顺序。他们的相对重要性在各族裔中得到了检验。其中，最重要的是产量，口味，切丝质量和根大小，占总响应的72.39％。研究表明，大多数农民没有考虑到有性繁殖在品种多样化中的重要性以及木薯花叶病对被侵染植物生产力的影响。为了提高刚果的粮食安全需求，建议开展宣传工作并将研究扩大到其他木薯生产区。为了阐明同义词，还提出了形态分类和分子分析。

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