Phenotypic Diversity of Released South African Bred Potato Varieties for Tuber Yield and Processing Quality

IF 2.3 3区 农林科学 Q1 AGRONOMY Potato Research Pub Date : 2024-09-07 DOI:10.1007/s11540-024-09790-5
Ntombokulunga W. Mbuma, Philippus J. Steyn, Sunette M. Laurie, Maryke T. Labuschagne, Michael W. Bairu
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Abstract

Potato (Solanum tuberosum L.) is a nutritious starchy tuber crop consumed as a staple food in most potato growing countries. Its productivity and production are limited by climate change; thus, it is of utmost importance to tap into the diversity of germplasm resources, therefore, diversifying the potato varieties available for production. The objectives of this study were to determine the phenotypic diversity among the selected Agricultural Research Council-Vegetable, Industrial and Medicinal Plants (ARC-VIMP) potato varieties for tuber yields and processing quality and to determine the correlation between measured traits. Two imported and 22 local potato varieties were planted in three different environments in South Africa. Significant (P < 0.001) differences in the tested varieties across all environments were observed for all measured traits. High broad-sense heritability (> 0.6) was observed for most of the traits, except for fry colour and the yield of unmarketable tubers. Nine ARC varieties and three standard varieties were associated with high tuber yield and quality traits, indicating their suitability for the fresh market and processing industry. Variety Mondial and five ARC varieties were associated with high tuber yield, indicating their suitability for the fresh market. Varieties released between 2004 and 2021 had high tuber yield, dry matter and specific gravity compared to the standard varieties and varieties released between 1980 and 1999, although there were slight differences in the magnitudes of their traits measured. These varieties could be recommended for commercial production for specific markets and for use as potential parents for further genetic improvement of the potato crop.

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已发布的南非马铃薯品种在块茎产量和加工质量方面的表型多样性
马铃薯(Solanum tuberosum L.)是一种营养丰富的淀粉块茎作物,在大多数马铃薯种植国作为主食食用。马铃薯的生产力和产量受到气候变化的限制;因此,开发种质资源的多样性至关重要,从而使可用于生产的马铃薯品种多样化。本研究的目的是确定选定的农业研究委员会-蔬菜、工业和药用植物(ARC-VIMP)马铃薯品种在块茎产量和加工质量方面的表型多样性,并确定测量性状之间的相关性。在南非的三个不同环境中种植了两个进口马铃薯品种和 22 个本地马铃薯品种。在所有环境中,受试品种的所有测定性状均存在显著差异(P <0.001)。除了薯苗颜色和未上市块茎的产量外,大多数性状的广义遗传率(> 0.6)都很高。9 个 ARC 品种和 3 个标准品种的块茎产量和质量性状较高,表明它们适合新鲜市场和加工业。Mondial 品种和五个 ARC 品种与高块茎产量有关,表明它们适合新鲜市场。与标准品种和 1980 至 1999 年间推出的品种相比,2004 至 2021 年间推出的品种具有较高的块茎产量、干物质和比重,但其所测量的性状大小略有不同。这些品种可推荐用于特定市场的商业生产,并可用作马铃薯作物进一步遗传改良的潜在亲本。
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来源期刊
Potato Research
Potato Research AGRONOMY-
CiteScore
5.50
自引率
6.90%
发文量
66
审稿时长
>12 weeks
期刊介绍: Potato Research, the journal of the European Association for Potato Research (EAPR), promotes the exchange of information on all aspects of this fast-evolving global industry. It offers the latest developments in innovative research to scientists active in potato research. The journal includes authoritative coverage of new scientific developments, publishing original research and review papers on such topics as: Molecular sciences; Breeding; Physiology; Pathology; Nematology; Virology; Agronomy; Engineering and Utilization.
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