Growth rate inheritance and associations with other traits in backcross populations of Avena sativa x A. sterilis |
| |
| Authors: | K Takeda K J Frey |
| |
| Institution: | (1) Department of Agronomy, Iowa State University, 50011 Ames, Iowa, USA |
| |
| Abstract: | Summary Improved grain yields in lines of oats from matings of Avena sativa x A. sterilis were found to be due to increased plant growth rate. Growth rates of oats were quantitatively inherited, with the minimum number of effective factor pairs segregating in the interspecific matings ranging from 3 to 9. Heritability values for this trait averaged 0.4. Growth rate was highly and positively correlated with bundle weight, straw yield, grain yield, and unit straw weight, but it was uncorrelated with heading date and harvest index. Correlations with plant height were low. Thus, it should be possible for oat breeders to combine the high growth rates from A. sterilis with any combination of agronomic traits.Journal Paper No. J-8608 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa 50011. Project 1752. Supported in part by a grant from the Graduate College.Hirosaki University, Hirosaki, Japan (formerly Visiting Scientist at Iowa State University). |
| |
| Keywords: | Avena sativa oats Avena sterilis interspecific cross growth rate straw yield grain yield heading date harvest index |
| 本文献已被 SpringerLink 等数据库收录！ |
|
