+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Genetic analysis of variation for grain yield and protein concentration in two wheat crosses

Genetic analysis of variation for grain yield and protein concentration in two wheat crosses

Australian Journal of Agricultural Research 48(5): 605-614

Grain yield and protein concentration are two of the more important criteria for wheat breeding in Queensland. Three aspects of the inheritance of both of these traits can have an impact on achieving genetic progress: (i) the magnitude and form of the genetic correlation between the traits, (ii) the magnitude of genetic variation and genotype times environment interactions, and (iii) the importance of epistasis in genetic variation. These 3 factors were examined for 2 crosses in a multienvironment trial conducted in Queensland in 1989. Negative genetic correlations were found between grain yield and protein concentration in both crosses. Genetic variation and genotype times environment interactions were found to be important for both traits. There was little evidence for the existence of significant additive times additive epistasis for either trait and the genotype times environment interactions were predominantly additive times environment in nature. From both crosses, progeny combining the high yield and high protein levels of the parents were identified. This suggests that there was a degree of independent segregation of the genes controlling grain yield and protein concentration in both crosses. Therefore, simultaneous genetic progress for yield and protein concentration is possible in Queensland environments.

(PDF emailed within 1 workday: $29.90)

Accession: 003150075

Download citation: RISBibTeXText

Related references

Genetic analysis for test weight, protein content and grain yield in six crosses of bread wheat (Triticum aestivum L.). 2008

Site-specific variation in wheat grain protein concentration and wheat grain yield measured on an Australian farm using harvester-mounted on-the-go sensors. Crop and Pasture Science 60(9): 808-817, 2009

Genetic analysis of grain yield in crosses of wheat genotypes with different Rht genes. Rostlinna Vyroba 47(4): 149-153, 2001

Genetic response to index selection for grain yield, kernel weight and per cent protein in four wheat crosses. Plant Breeding 115(6): 459-464, 1996

Optimal numbers of environments to assess slopes of joint regression for grain yield, grain protein yield and grain protein concentration under nitrogen constraint in winter wheat. Field Crops Research 113(3): 187-196, 2009

Genetic analysis of grain yield per spike and some agronomic traits in diallel crosses of bread wheat (Triticum aestivum L.). Turkish Journal of Agriculture and Forestry 32(4): 249-258, 2008

Inheritance of grain number, grain size, protein content and grain yield in two spring X winter wheat crosses. SABRAO Journal 11(1): 1-7, 1979

Genetic analysis of grain protein-content, grain yield and thousand-kernel weight in bread wheat. Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 106(6): 1032-1040, 2003

Grain yield, its components and grain protein content relationships in bread wheat crosses. Genetika i Selektsiya 27(5-6): 203-209, 1994-, 1995

Nitrogen Nutrition on Leaf Chlorophyll, Canopy Reflectance, Grain PROTEIN AND GRAIN YIELD OF WHEAT VARIETIES WITH CONTRASTING GRAIN PROTEIN CONCENTRATION. Journal of Plant Nutrition 33(11): 1681-1695, 2010

Genotypic Variationin Dry Weight and Nitrogen Concentration of Wheat Plant Parts; Relations to Grain Yield and Grain Protein Concentration. 2012

Genetic analysis of protein concentration in the grain of hybrids of spring wheat. Tsitologiia i Genetika 10(5): 450-454, 1976

Estimation of genetic parameters for wheat grain yield and its components using diallel crosses. Journal of Science and Technology of Agriculture and Natural Resources 11(40(A)): 157-165, 2007

A simple method to evaluate genetic variation in grain zinc concentration by correcting for differences in grain yield. Plant and Soil 306(1-2): 49-55, 2008

Genetic association and variability for grain yield and other quantitative characters in F2 population of wheat crosses. Advances in Plant Sciences 12(1): 237-239, 1999