Genetic effects of embryo and endosperm for four malting quality traits ofbarley

Citation
Xf. Yan et al., Genetic effects of embryo and endosperm for four malting quality traits ofbarley, EUPHYTICA, 106(1), 1999, pp. 27-34
Citations number
38
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Plant Sciences
Journal title
EUPHYTICA
ISSN journal
0014-2336 → ACNP
Volume
106
Issue
1
Year of publication
1999
Pages
27 - 34
Database
ISI
SICI code
0014-2336(1999)106:1<27:GEOEAE>2.0.ZU;2-6
Abstract
Seed of seven cultivars of two-rowed barley (Hordeum Vulgare L.) and Fz see d from a half-diallel set of crosses among the cultivars were malted in two years to obtain data on diastatic power (DP), alpha-amylase activity (alph a AA), beta-amylase activity (beta AA) and malt nitrogen (N) content. Embry o and endosperm genetic effects on the traits were studied by using a genet ic model including genotype x environment interaction for malting quality c haracters. Variation of the four malting quality traits was affected by gen tic effects and environmental interaction. Performance of DP and beta AA wa s mainly controlled not only by endosperm dominance effects but also by emb ryo genotype x environment interaction and endosperm dominance x environmen t interaction. Variation of alpha AA and malt N content was controlled by b oth embryo and endosperm genetic effects, but the embryo dominance and endo sperm additive effects contributed a major part to the total genetic effect s. Significant interaction variances (embryo additive x environment and dom inance x environment and endosperm dominance x environment) were also obser ved for alpha AA and malt N content. Diastatic power was related positively to beta AA. Malt N content was associated positively with DP, largely beca use of the relationship between malt N and beta AA. No obvious phenotype as sociation between DP and alpha AA was found. General narrow-sense heritabil ities of alpha AA and malt N content were 26.1% and 27.8%, respectively.