Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 560969
Title Contribution and Stability of Yield Components of Diploid Hybrid Potato
Author(s) Stockem, Julia; Vries, Michiel de; Nieuwenhuizen, Edwin van; Lindhout, Pim; Struik, Paul C.
Source Potato Research (2020). - ISSN 0014-3065 - 22 p.
DOI https://doi.org/10.1007/s11540-019-09444-x
Department(s) PE&RC
Crop Physiology
Publication type Refereed Article in a scientific journal
Publication year 2020
Keyword(s) GxE interaction - Hybrid breeding - Solanum tuberosum - True seed
Abstract

Recently, a hybrid breeding system was developed for diploid potato. We compared performance of diploid hybrids with commercially available tetraploid cultivars. Therefore, seedling tubers were produced from true hybrid seeds in field conditions. In the subsequent year, diploid hybrids grown from seedling tubers showed a yield potential comparable with commercial tetraploid cultivars: the highest yielding diploid hybrids showed a yield comparable with the lower yielding tetraploid cultivars. Yields of hybrids and commercial tetraploid cultivars were broken down into different yield components and the interactions with growing conditions were quantified. The stability of yield and other relevant traits in different growing conditions was similar between hybrids and commercial cultivars. The contribution of the different yield components to total yield over different environments was compared between diploid hybrids and tetraploid cultivars. In diploid hybrids as well as tetraploid cultivars, more tubers per stem resulted in the highest yield gain, while an increase in tuber size resulted in a relatively smaller increase of total yield.

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