Self-compatibility and heterosis in white clover (Trifolium repens L.) |
| |
| Authors: | TPT Michaelson-Yeates A Marshall MT Abberton I Rhodes |
| |
| Institution: | (1) Legume Breeding Group, Plant Breeding Department, Institute of Grassland and Environmental Research (IGER), Plas Gogerddan, Aberystwyth, Dyfed, SY23 3EB, UK |
| |
| Abstract: | Inbred lines of white clover (Trifolium repens L.) have been produced utilising the rare self-fertility (Sf) allele. Twenty-two
lines of four distinct groups have been maintained through five generations of selfing by single seed descent. Fourteen lines
were used in crosses to produce F1s. Both parents and hybrids were analysed for a range of morphological characters. Positive heterosis for dry matter production
was observed in half the hybrids. No other trait showed significant heterosis. The degree of heterosis appears to be related
to the extent of variation in morphological characters between the parental lines, some combinations of lines yielding heterotic
hybrids in all cases, others in none. The majority of the F1 hybrids are superior in terms of dry matter production to eight control varieties.
This revised version was published online in July 2006 with corrections to the Cover Date. |
| |
| Keywords: | dry matter heterosis self-compatibility Trifolium repens white clover |
| 本文献已被 SpringerLink 等数据库收录！ |
|
