Hybrid production in Lolium perenne based on incompatibility |
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| Authors: | Ulrich K. Posselt |
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| Affiliation: | (1) Landessaatzuchtanstalt, Universität Hohenheim, D-70 593 Stuttgart, Germany |
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| Abstract: | Summary SI-hybrids were produced by crossing 30 partially inbred lines in 3 sets of 5×5 factorial crosses. Annual dry matter yields from 3 successive years and 2 locations were on average 9.5 T/ha for the hybrids compared to 8.9 T/ha for their parental lines, with the best hybrid yielding 10.3 T/ha. Heterosis was up to 20%. Problems and prospects of SI-hybrid production in grasses are discussed.This paper is dedicated to Prof. Dr. F.W. Schnell on the occasion of his 80th birthday. |
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| Keywords: | Lolium perenne perennial ryegrass incompatibility SI-hybrids heterosis |
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