[Genetical variability and fertility of hybrids between Italian ryegrass and tall fescue]
2000
Pasakinskiene, I. (Lithuanian Inst. of Agriculture, Dotnuva (Lithuania))
Crosses were made between eleven varieties of Italian ryegrass and a single genotype of tall fescue No. 870 selected from variety 'Barundy'. Fertility character was found to be in relation to the variety of Italian ryegrass and also depending on individual female genotype. That leads to the conclusion that hexaploid hybrids of Italian ryegrass x tall fescue have advantages wich makes them prevalent in the population. Apparently, a high number of new recombinant chromosomes will be produced in meiosis of F 2 3-18, because of the triploid number of ryegrass chromosome content which makes this hybrid a useful component for introgression breeding
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