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Evaluation of the morphological and quality characteristics of new papaya hybrid lines in Kenya

机译：肯尼亚新番木瓜杂交品系的形态和品质特性评价

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Papaya (Carica papaya L.) is among the most grown fruit crops worldwide with high economic and nutritional value. In Kenya, the papaya industry relies heavily on imported varieties and farmers’ selected seed whose quality is not known. Therefore, the morphological and quality characteristics of mature fruits of eight newly developed papaya hybrids and their control, Sunrise solo were assessed using papaya descriptors (International Board for Plant Genetic Resources). The results showed significant differences in fruit sizes among the newly developed papaya hybrid lines and the control, Sunrise solo with Line 4 having the longest and heaviest fruits. Fruits from Sunrise solo, lines 2, 3, 7 and 8 ranged from small to medium in size, while those of lines 4 and 6 were large. Line 1 had the shortest shelf life of 4 days while Line 7 had the longest shelf life of 11 days. The total soluble solids (TSS) varied from 7.4 in Line 8 to 12.3% in Lines 5 and 7. Hence, most newly developed papaya hybrids Lines showed traits that were comparable to or exceeded those of Sunrise and could be suitable for both local and export markets. However, there is a need to evaluate and characterize the newly developed papaya hybrid lines in different agro-ecological zones in order to monitor the influences of the environment, pests and diseases.
机译：木瓜（Carica papaya L.）是世界上生长最快的水果作物，具有很高的经济和营养价值。在肯尼亚，木瓜产业严重依赖进口品种和农民挑选的种子，而种子的质量尚不得而知。因此，使用木瓜描述符（国际植物遗传资源委员会）评估了八种新开发的木瓜杂种的成熟果实的形态和品质特征及其对照，Sunrise solo。结果显示，在新开发的木瓜杂交品系和对照中，日出的独奏与4号品系具有最长和最重的果实。日出独奏的水果，第2、3、7和8行的果实大小从小到中等，而第4和6行的果实则大。 1号线的保质期最短为4天，而7号线的保质期最长为11天。总可溶性固形物（TSS）从第8行的7.4％到第5行和第7行的12.3％不等。因此，大多数新开发的木瓜杂交品系的性状可与Sunrise相比，甚至超过，并且适合本地和出口市场。然而，有必要评估和表征不同农业生态区中新开发的木瓜杂交品系，以监测环境，病虫害的影响。

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