## Mapping, combining abilities, heritabilities and heterosis with 4x x 2x crosses in potato |

### From inside the book

Results 1-3 of 44

Page 70

Mendiburu and Peloquin (1977) noted midparent heterosis only for four

W5295.7(1) and U8-W5337.3(j) , known to produce 2n pollen by a parallel

spindle ...

Mendiburu and Peloquin (1977) noted midparent heterosis only for four

**progenies from 4x**x 2x FDR crosses. They involved two 2n pollen clones US-W5295.7(1) and U8-W5337.3(j) , known to produce 2n pollen by a parallel

spindle ...

Page 71

The 4x

cultivars used as females, for total tuber yield. The mean marketable tuber yield

of these 4x hybrid families was significantly below that of the 4x cultivars.

However, the ...

The 4x

**progenies from 4x**x 2x crosses, yielded as well as, or better than 4xcultivars used as females, for total tuber yield. The mean marketable tuber yield

of these 4x hybrid families was significantly below that of the 4x cultivars.

However, the ...

Page 75

In Trial 1 and Trial 2, 11 genotypes of 20, 4x

were numbered and identified in each plot of the two replications, all genotypes

were harvested separately; ten, 4x

In Trial 1 and Trial 2, 11 genotypes of 20, 4x

**progenies from 4x**x 2x FDR crosseswere numbered and identified in each plot of the two replications, all genotypes

were harvested separately; ten, 4x

**progenies from 4x**x 2x FDR-CO crosses, ...### What people are saying - Write a review

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### Contents

Genetic Mapping of Three Linked Genes | 34 |

Results | 78 |

Comparisons between 2x FDRCO and 2x FDRNCO | 94 |

2 other sections not shown

### Common terms and phrases

2n eggs 2n gamete formation 2x clones 2x crosses 2x FDR-CO 2x genotypes 2x level 2x parents 4x cultivars 4x progeny 4x x 2x centromere chromosome combining abilities coupling phase cytokinesis depending on frequency diploid distal locus division restitution dominance variance double crossovers double exchange tetrads endosperm epistasis epistatic estimates expressed as map FDR and SDR FDR or SDR form 2n gametes form 2n pollen Frequencies of parental frequency of single gametic series produced GCA variance genotypes in coupling haploid heterosis heterozygosity heterozygous heterozygous loci homozygous linked genes map units marketable tuber yield meiocytes mode of 2n periderm Phureja ploidy polyploidization potato progenies from 4x proximal locus random chromatid exchange repulsion phase rH rH S. J. Peloquin SDR mode SET.I single and double single exchange tetrads Solanum Solanum tuberosum specific gravity Table tetrad analysis tetraploid total tuber yield tuber shape types of 2n unpigmented