An easy and reliable method for the rejuvenation of self-incompatible tuber-bearing Solanum species
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True seed production was studied of self-incompatible diploid tuber-bearing Solanum species grown in the field under spatial isolation in cereals in 1979 and 1982. In comparison with hand pollinations in the greenhouse, extremely high amounts of seeds were obtained, the potential seed yield of 20 plants in 1979 being 66 000 to 540 000. As no indication of interspecific hybridization was found, the chosen isolation is considered to be adequate. It is concluded that sexual propagation of self-incompatible tuber-bearing Solanum species in the field is highly efficient.
Index wordsSolanum potato wild species genetic resources rejuvenation sexual propagation true seed production incompatibility spatial isolation
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