Performance of true potato seed families. 2. Comparison of transplants vs. seedling tubers |
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Authors: | Gisela C Shonnard S J Peloquin |
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Institution: | (1) Departments of Horticulture and Genetics, University of Wisconsin, 53706 Madison, WI, USA;(2) Present address: L-452, Lawrence Livermore National Laboratory, 7000 East Ave., 94550 Livermore, CA, USA |
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Abstract: | Summary A potato crop can be grown from true potato seed (TPS) either by transplanting seedlings to the field (seedling transplants)
or by planting tubers derived from seedlings (seedling tubers). The effect of the planting method on performance of TPS families
was evaluated for three types of families, 4x×2x hybrid, open pollinated, and self pollinated. Families from seedling transplants
and seedling tubers and their 4x parental clones were compared for tuber yield and specific gravity. Families from tubers
had substantially higher yields and significantly more uniform specific gravity than families from transplants. Hybrid seedling
tuber families had a higher mean yield than the parental clones and did not differ from them in specific gravity. Selection
in the seedling generation could further improve both OP and hybrid families from transplants and from seedling tubers.
Paper no. 3163 from the Department of Genetics, University of Madison. |
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Keywords: | 4x×2x hybrid open pollination self pollination specific gravity selection |
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