scholarly journals GENETIC RESEARCH OF QUANTITATIVE TRAITS OF INBRED LINES OF WINTER RYE (Secale cereale L.) IN DIALLEL CROSSINGS

2015 ◽  
Vol 50 (1) ◽  
pp. 75-84
Author(s):  
A.A. Goncharenko ◽  
◽  
S.V. Krahmalev ◽  
А.V. Мakarov ◽  
S.A. Yermakov ◽  
...  
1979 ◽  
Vol 59 (1) ◽  
pp. 163-169 ◽  
Author(s):  
G. J. SCOLES ◽  
L. E. EVANS

Six inbred lines of spring rye (Secale cereale L.) and an open-pollinated cultivar of spring rye were crossed with a cytoplasmic male-sterile line of winter rye. The open-pollinated cultivar and all except one inbred line exhibited segregation for fertility restoration. Through further inbreeding, sub-lines of certain breeds were obtained which were homozygous for maintenance of sterility or for restoration of fertility. Environmental effects on the expression of fertility restoration were detected.


2015 ◽  
Vol 26 (4) ◽  
pp. 30-34
Author(s):  
Agnieszka Pyza ◽  
Helena Kubicka-Matusiewicz ◽  
Dariusz Gozdowski

Abstract Effective tools for evaluation of diversity in the collected gene resources of a given species are multivariate statistical methods. They provide information on phenotypic and genetic variability of collected material. The subjects of this study were nine inbred lines and three F1 generations of winter rye (Secale cereale L.), growing in experimental plots of the Polish Academy of Sciences Botanical Garden, Centre for Biological Diversity Conservation in Powsin. The evaluation was performed over the period of 3 years. Observations were made of the following traits: length of stem, length of spike, number of nodes in spike rachis, number of kernels per spike, weight of kernels per spike, weight of 1000 kernels, length of flag leaf, length of subflag leaf, length of third leaf, width of flag leaf, width of subflag leaf, width of third leaf, area of leaves per stem, number of stems per plant and area of leaves per plant. On the basis of cluster analysis and principal components analysis, two genetically homogeneous groups were identified. Mean values and standard deviations were calculated for each trait in each group and for all genotypes together. Multivariate distance matrix permitted identification of the most genetically similar and most distant forms.


Euphytica ◽  
2005 ◽  
Vol 146 (1-2) ◽  
pp. 109-116 ◽  
Author(s):  
Hanna Bolibok ◽  
Monika Rakoczy-Trojanowska ◽  
Aneta Hromada ◽  
Robert Pietrzykowski

1979 ◽  
Vol 21 (3) ◽  
pp. 417-422 ◽  
Author(s):  
G. J. Scoles ◽  
L. E. Evans

Three inbred lines of rye (Secale cereale L.) known to be capable of restoring fertility to a cytoplasmic male-sterile line were crossed with the sterile line. The proportions of male fertile, partially male fertile and male sterile plants in F2 and backcross progenies indicated that three dominant restorer genes were present in each line. These were designated Rf1, Rf2 and Rf3, their relative expressivity was Rf1>Rf2>Rf3. Expressivity was dependent upon environment. Partial fertility occurred when certain genotypes carried two of the three alleles as dominant, but was dependent upon genotype and environment.


1982 ◽  
Vol 143 (4) ◽  
pp. 486-490 ◽  
Author(s):  
Marilyn Griffith ◽  
Gregory N. Brown

1998 ◽  
Vol 78 (3) ◽  
pp. 423-427
Author(s):  
Y. T. Gan ◽  
J. G. McLeod ◽  
G. J. Scoles ◽  
G. L. Campbell

Rye (Secale cereale L.) grain with low extract viscosity (EV) and superior kernel characteristics is desired when used in diets of monogastric animals. Knowledge of the relationship between EV and kernel characteristics is needed to develop an efficient selection strategy for breeding cultivars that meet the two criteria. Grains of 11 open-pollinated population varieties/lines grown in 21 environments were studied to determine the relationship between EV and kernel weight (KWT) among genotypes and environmental effects. Grains of eight out of the eleven varieties/lines were screened into five kernel-size categories, <2.0, 2.0–2.4, 2.4–2.8, 2.8–3.2, >3.2 mm in kernel width, to determine the relationship between EV and kernel width within a genotype. EV was a linear function of KWT; high KWT is indicative of low EV. The degree of the relationship was affected by environment. For example, grains grown at Swift Current had a stronger relationship between EV and KWT than those from Lacombe (b = −1.67 vs. −0.31). For the grain from Swift Current, 60% of variability in EV was attributable to KWT, while for the grain from Lacombe only ≈ 20% of variability in EV was explainable by KWT. Among the various kernel-width categories within a genotype, 60 to 98% of variability in EV was attributable to kernel width, with some genotypes responding to a greater degree than others. In development of winter rye cultivars low in extract viscosity, breeders could combine kernel weight/width into the selection strategy to enhance the selection progress or use kernel weight/width as a reference in selection of extract viscosity trait. Key words: Pentosans, arabinoxylans, kernel weight, Secale cereale


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