ISSN:
1432-2242
Keywords:
Barley genetics
;
Quantitative gene expression
;
Ideotype
;
Mutants
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary Three mutants induced in the two-rowed barley variety Beka and their three binary recombinants have been used in an attempt to define an ideotype suitable for Mediterranean agroclimatic conditions. Physiological methods (classical plant growth analysis) together with the study of genotype x environment interaction for grain yield were used to characterize the genotypes. That characterization brought out the huge phenotypical variation produced by only three mutant genes, suggesting that single Mendelian genes may alone explain the quantitative variation, including grain yield, without the necessity of using the polygenic concept. The genotype best adapted to the environments studied is later in heading and has shorter straw and denser spikes than Beka; it also has higher inverse of leaf area rate and grain: leaf area ratio, a lower rate of leaf senescence, and a shorter grain filling period than the original variety.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00224189
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