二・六条品種間交雑による大麦育種に関する研究: I.二条および六条遺伝子の農業形質に及ぼす影響

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  • Studies on Barley Breeding with Two-rowed and Six-rowed Varietal Crosses. I. Effects of the genes V and v on Agronomic Characters

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This series of studies aims at finding possibility of breeding high-yielding barleys from two-rowedXSix-rowed varietal crosses. As the first step to approach this problem, effects of the genes for two-rowed and six-rowed characters, V and v, and the chromosome segment around the locus, on 13 irnportant agronomic characters were investigated, using two-rowed and six-rowed isolines, which were developed by backcrossing or selfing methods. The results have indicated that all the characters investigated are affected significantly by the genes, V and v, and their linkage blocks. These characters are classified into three groups, according to the intensity of the gene, action of Vv, the effects of the other loci and the interactions between them.

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