Effect of D‐Genome Chromosome Substitutions on Hybrid Seed Development and Viability in T. turgidum var. durum X S. cereale Crosses
Identifieur interne : 001A54 ( Main/Exploration ); précédent : 001A53; suivant : 001A55Effect of D‐Genome Chromosome Substitutions on Hybrid Seed Development and Viability in T. turgidum var. durum X S. cereale Crosses
Auteurs : R. De V. Pienaar ; G. F. Marais [Afrique du Sud]Source :
- Plant Breeding [ 0179-9541 ] ; 1986-08.
English descriptors
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Abstract
Triticum turgidum var. durum cv. ‘Langdon’ and the set of D‐genome disomicsubstitutions in ‘Langdon’, produced at Fargo, U.S.A., were grown in a temperature controlled greenhouse and crossed with diploid spring rye (Secale cereals), to determine the effect of each substitution on 1. the crossability with rye, and 2, the viability of the resulting hybrids kernels. None of the disomicsubstitutions lines, with the possible exception of the 5D (5Bj line, gave an appreciable improvement in hybrid kernel set, ‐development, and ‐viability over the control, ‘Langdon’ The post‐zygotic barrier to endosperm and embryo development, which operates in crosses between durum wheat and rye, could therefore not be suppressed by any specific chromosome of the D‐genome.
Url:
DOI: 10.1111/j.1439-0523.1986.tb01042.x
Affiliations:
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