玉蜀黍におけるCombining abilityのS_0における検定と合成品種について

概要

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. The experiment on the synthetic variety by short time inbreeding suggsted by JENKlNS M. T. was conducted. 2. Com,biuing ability was tested in So generation by topl and, sib-crosse(combination with original variety). 3. So Plants were divided into four groups : A, B, C, D, throuh the performances of topand sib-crosses. The performances were as follows ; Top-cross Sib-cross A high high B high low C low fow D low high 4. So Plants were selfpollinated and in S0 generation they were crossed within groups, and designated as synthetic varieties A. B, C, and D. respectively. 5. Synthetic variety A, B, C, D and original variety were compared on the yielding ability.In 1949, synthetic D. and in 1950, aynthetic A had significantly high yield, but in 1949, it was dry, and therefore, synthetic D with lesser titllers had high yield. 6. On the basis of performance in 1950, if the two tester"varieties were used, testing the combining ability in So generation was efiicient. but otherwise, Iines with lower combining ability were contained in high class. 7. This phenemenon may be recognized as the action of specific combining ability.
日本育種学会の論文
1951-08-15