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Breeding Potential Of Durum Wheat Landraces From Jordan Iv. High Molecular Weight Glutenin Subunit Variation., A. A. Jaradat, M. M. Ajlouni
Breeding Potential Of Durum Wheat Landraces From Jordan Iv. High Molecular Weight Glutenin Subunit Variation., A. A. Jaradat, M. M. Ajlouni
Herbarium Publications
Variation in high molecular weight glutenin subunit composition among 177 durum wheat genotypes, derived from a collection of durum wheat landraces from Jordan, was investigated using one-dimensional sqdium dodecyl sulphate polyacrylamide gel electrophoresis. A total of 22 alleles, in addition to the null allele, Glu-A I c, were identified; three and seven novel variants were identified at the Glu-A I and Glu-B I loci, respectively. The null allele, Glu-A I c, had the highest (7 6. I%) frequency, followed by Glu-B I b (34. 7% ). Two loci at the Glu-B I locus were lacking, these were Glu-B I c …
Breeding Potential Of Durum Wheat Landraces From Jordan Ill. Rate And Duration Of Grain Fill, A. A. Jaradat, M. M. Ajlouni
Breeding Potential Of Durum Wheat Landraces From Jordan Ill. Rate And Duration Of Grain Fill, A. A. Jaradat, M. M. Ajlouni
Herbarium Publications
Grain fill of durum wheat coincides with terminal drought and high temperature stress in the Mediterranean region. Genotypic variation for rate and duration of grain fill was studies in 250 landrace durum wheat genotypes collected in Jordan. A quadratic polynomial was used to describe the relationship between kernel weight and accumulated growing-degree-days from anthesis to maturity. Fitted curves were employed to estimate rate and duration of grain fill. Genotypic differences were found for both traits. Genotypes with high grain filling rate and high kernel weight were identified. Based on grain yield per spike, spikelet fertility, 1000-kernel weight, rate and duration …
Breeding Potential Of Exotic Barley Germplasm, Merja Veteläinen
Breeding Potential Of Exotic Barley Germplasm, Merja Veteläinen
Herbarium Publications
Utilization of exotic germplasm offers an approach to broaden genetic variability in breeding populations. This study was conducted in order to 1) compare germplasm of exotic origin with adapted Swedish barleys with respect to genetic differences and 2) to evaluate first cycles of pre-breeding i.e. agronomic traits in complex exotic x adapted crosses. Allozyme studies showed the following Nei's gene diversities among parents: 0.13 (adapted parents), 0.16 (landraces) and 0.25 (H. spontaneum). Cluster analysis based both on allozyme and agronomic data indicated that parental groups were genetically divergent. Earliness, straw length, number of ears per plant and thousand …