ISSN:
1573-5060
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Ten interspecific crosses of Avena sativa L. x A. sterilis L. were used to study inheritance of protein content in oat straw and its associations with selected seed and agronomic traits. Each cross was grown in a replicated experiment, and the materials for each cross consisted of parents and F2-derived lines in the F4 generation. Straw-protein percentages were transformed to square roots to normalize the data before statistical analyses were carried out. Frequency distributions were reasonably symmetrical for square roots of straw-protein percentages (√SP%) in eight crosses, suggesting that additive gene action conditioned this trait. There was a preponderance of low √SP% lines in the remaining two crosses. √SP% was not consistently correlated with plant height, 10-groat weight, or groat-protein percentage. √SP% was positively and significantly correlated with heading date in all crosses, so the √SP% variances were adjusted for heading date by covariance analyses. Whereas all crosses had significant variability among F2-derived lines for √SP% before covariance analysis, only two showed significant variability after adjustment for heading date. Mean per-plot and per-experiment heritabilities for √SP% before adjustment for heading date were 56 and 69%, respectively, whereas after adjustment for heading date, they were 22 and 32%, respectively. Although the inheritance of √SP% appears relatively simple, this trait is greatly influenced by date of maturity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00035880
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