Post-harvest characterization of strawberry hybrids obtained from the crossing between commercial cultivars

Abstract The lack of programs to improve the strawberry crop in Brazil has led to a growing increase in the use of seedlings imported from Chile, which leads to a certain dependence of imported material on the part of the producers and increases the production even more, since the producers have. This proves even more the need for the development of cultivars adapted to the local conditions of cultivation. In this sense, the aim was to evaluate the post-harvest of fruits of 15 hybrids of strawberry obtained from the cross between commercial cultivars, in order to select the materials with chemical quality superior to the cultivars most planted in Brazil. The contents of soluble solids, titratable acidity, ratio, vitamin C, anthocyanins and phenol were evaluated. The characterization of strawberry hybrids indicated that the RVFS 13-07, RVFS 13-24, RVCS 13-07, RVCS 13-10 and RVCA 13-08 materials stood out in post-harvest evaluations, with higher levels of functional compounds (vitamin C, anthocyanins and phenolics) and higher values of quality parameters (soluble solids, titratable acidity and ratio), important characteristics for the in natura consumption or for use by the industry. These hybrids were shown to be promising to continue the crop breeding program by demonstrating that they carried characteristics of interest for intraspecific crosses. The values obtained for the analyzed characteristics were higher than the values found in the literature for the cultivars most planted and consumed in Brazil and in the World, which demonstrates the efficiency in the selection process.

摘要
巴西缺乏草莓品种改良相关项目，导致智利进口草莓种苗的使用量持续攀升，这使得种植户对进口种苗产生一定程度的依赖，且由于种植者[原文此处疑似存在内容遗漏]，进一步提升了生产规模。这愈发凸显了研发适配当地栽培条件的品种的必要性。
本研究旨在对15个由商业品种间杂交获得的草莓杂交株系的果实采后（post-harvest）性状进行评价，以期筛选出化学品质优于巴西主栽品种的试验材料。本研究测定了可溶性固形物（soluble solids）、可滴定酸度（titratable acidity）、糖酸比（ratio）、维生素C（vitamin C）、花青素（anthocyanins）及总酚（phenol）的含量。
对草莓杂交株系的表征分析显示，RVFS 13-07、RVFS 13-24、RVCS 13-07、RVCS 13-10及RVCA 13-08这5个株系在采后评价中表现优异，其功能成分（维生素C、花青素及酚类物质）含量与品质参数（可溶性固形物、可滴定酸度及糖酸比）均处于较高水平，具备鲜食或工业加工所需的优良性状。这些杂交株系携带适合种内杂交（intraspecific crosses）的目标性状，表明其在后续草莓育种项目中具有良好的应用前景。
本研究测定的各性状指标值均高于巴西及全球主栽消费品种的文献报道值，证实了本次筛选流程的有效性。