Japanese Journal of Breeding
Online ISSN : 2185-291X
Print ISSN : 0536-3683
ISSN-L : 0536-3683
Studies on Variation and Selection in Italian Ryegrass Populations. : III. Response to Selection for Higher Dry Matter Weight
Fumihiro FUJIMOTOShigeru SUZUKI
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1975 Volume 25 Issue 6 Pages 323-333

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Abstract
Within-population selection was carried out for three generations, and Japanese Italian ryegrass populations increased dry matter weight but no plateau in selection was reached. Degree of inbreeding depression in small populations and heterosis in a synthetic population were investigated. Possibility of further improvement in the growth from autumn to early spring in Italian ryegrass was discussed.
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© Japanese Society of Breeding
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