Distinctive Features of the New Variety Festulolium Ayvengo

Abstract

Festulolium (× Festulolium F. Aschers. et Graebn.) is a new crop, the varieties of which are created by the method of species hybridization in the Lolium and Festuca genus system. A new amphidiploid cultivar Ayvengo was obtained as a result of intergeneric hybridization of multi-cutting ryegrass and reed fescue (Lolium multiflorum Lam. × Festuca arundinacea Schreb. subsp. arundinacea). Registered in the State Register since 2022. Tetraploid variety of ryegrass morphotype. It is characterized by a combination of fodder advantages of multicut ryegrass with winter hardiness, drought resistance and longevity of cane fescue, high ecological plasticity. According to the type of development, it belongs to winter plants and does not form generative shoots in the year of sowing. Differs in resistance to diseases, competitiveness in grass mixtures, fast and intensive regrowth after grazing or mowing. Distinctive morphological features, features of growth and development of this variety, as well as its fodder qualities, productivity, chemical composition of green mass, its advantages and differences from the standard festulolium variety VIK 90 are given. The seed yield of the Ayvengo variety, on average, for two tabs of the competitive variety trial was: in the first year of use 1.09 t/ha, in the second year — 0.66 t/ha and in the third year — 0.34 t/ha. On average, over the three years of use, the seed yield was 0.70 t/ha, which is 10% more than the standard variety VIK 90. In terms of feed quality and fodder productivity, hay yield, the new variety is 10.7–19.9% higher than standard and analogues of varieties of the original parental forms.