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首页> 外文期刊>Journal of Plant Studies >Morphological Diversity of Farmers’ and Improved Potato (Solanum tuberosum) Cultivars Growing in Eritrea
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Morphological Diversity of Farmers’ and Improved Potato (Solanum tuberosum) Cultivars Growing in Eritrea

机译：厄立特里亚农民和改良马铃薯（Solanum tuberosum）品种的形态多样性

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Farmers’ and improved potato (Solanum tuberosum L.) cultivars growing in Eritrea are main sources of food and income to many growers. The current study was proposed to characterize 17 farmers’ and 4 imported cultivars of potato using 33 morphological descriptors. Planting was done in two geographically distinct locations, HAC and Asmara, Eritrea. The experiment was laid out in a randomized complete block design with three replications having 18 plants per plot. Plants grown at HAC emerged early (24.52 days) and reach maturity (94.84 days) while at Asmara it took 43.77 and 123.59 days, respectively. However, yield was higher in Asmara (0.49 kg/plant) compared to HAC (0.37 kg/plant). An accession having many and longer stems was associated with more tuber production, but inversely related to yield. Similarly, accessions with higher stem thickness and tuber size were associated with high yields. The PCA analysis indicated that the first four components explained about 85% of the total variability among the studied materials. The PCA clustered the materials in to four main groups (GI, GII, GIII, GIV) mainly explained by flowering patterns and yield related descriptors. The work has provided useful information on morphological characteristics of the farmer’s potato to avoid duplication of resources and identify promising materials for future breeding program.
机译：在厄立特里亚种植的农民和改良马铃薯（Solanum tuberosum L.）品种是许多种植者的主要食物来源和收入来源。提出了当前的研究，以利用33种形态学特征来表征17个农民和4个进口马铃薯品种。种植在两个地理上不同的地点进行，HAC和厄立特里亚阿斯马拉。实验以随机完整区组设计进行，每个小区有18个植物，进行了3​​次重复。在HAC上生长的植物出现得早（24.52天）并达到成熟（94.84天），而在Asmara上分别需要43.77天和123.59天。然而，与HAC（0.37公斤/植物）相比，阿斯马拉（0.49公斤/植物）的产量更高。具有许多茎和更长茎的种质与更高的块茎产量有关，但与产量成反比。同样，具有较高茎粗和块茎大小的种质与高产有关。 PCA分析表明，前四个成分解释了所研究材料中总变异性的约85％。 PCA将材料分为四个主要组（GI，GII，GIII，GIV），主要通过开花模式和与产量相关的描述符进行解释。这项工作提供了有关农民马铃薯形态特征的有用信息，以避免资源重复，并为将来的育种计划确定有希望的材料。

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