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The formation and fertility of aneuploids in eutetraploid sugar beet


, : The formation and fertility of aneuploids in eutetraploid sugar beet. Mie Daigaku Nogakubu Gakujutsu Hokoku/Bull. Fac. Agric. Mie Univ, 38, 1-14

Causes of low fertility in autotetraploid sugar beet were investigated in relation to chromosome behaviour during meiosis and the frequency of aneuploid offspring from eutetraploids. Tetra-ploid offspring raised from the polyploid variety Maribo Poly Al were divided into eutetraploids and compensated tetraploids; the relative frequencies of normal tetrads indicated by meiotic indexes were above 50% and below 40% respectively. The mean percentage of seed set among the eutetraploids was 51.2.

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