Some morphological characteristics of F1 hybrids obtained from interamphiploid crosses involving Trititrigia

Abstract

The purpose of the research was the study of the success rate of hybridization in interamphiploid crosses with involving of trititrigia (T. aestivum / Ag. junceum) and some morphological indicators of the obtained first generation hybrids.The research was conducted according to the methodology of field experiments. The hybridization potential of wheat-alien amphiploids involved in this research and some agronomically important morphological traits of the first hybrid generation plants obtained from their hybridization were studied. The results of the study can be informative for the exploitation of wheat-alien amphiploids in various genetic studies and breeding program. Hybridization success was higher when the trititrigia form (T. aestivum / Ag. junceum) involved in interamphiploid crosses is used as a male parent. In the hybridizations conducted using trititrigia (T.aestivum/Ag.junceum), positive heterosis for spike length was observed in all F₁ plants, except for the hybrids obtained from trititrigia × haynatriticum combination.The 4 wheat-alien amphiploids used in the study (trititrigia - T. aestivum / Ag. junceum, haynatriticum - T. turgidum / H. villosa and local forms of triticale - AD908 and AD1164) were involved in interamphiploid hybridization for the first time as well as their derived hybrid generations studied. The local triticale form ABDR (or NA - 75) was involved in interamphiploid hybridization with trititrigia for the first time.