Variety traits

Cytoplasmic Male Sterility (CMS) in Hibiscus syriacus × Hibiscus paramutabilis hybrids

Hybrids between Hibiscus paramutabilis and Hibiscus syriacus

Interspecific hybrids of Hibiscus syriacus × Hibiscus paramutabilis do not exhibit the phenomenon of cytoplasmic male sterility (CMS). Studies confirm that male fertility is maintained at the level of the parental forms, while significant female sterility is present.

In the reference 6 varieties crop Hybrids between Hibiscus paramutabilis and Hibiscus syriacus, where this is mentioned in the description.

Scientific research into the fertility of Hibiscus syriacus × Hibiscus paramutabilis hybrids, including the varieties Lohengrin and Resi, does not confirm the presence of the cytoplasmic male sterility trait. Analysis using acetocarmine staining and in vivo pollination methods demonstrates that male fertility in these hybrids remains high and is comparable to that of Hibiscus syriacus varieties.

Unlike CMS, these interspecific hybrids exhibit a significant reduction or complete absence of female fertility. This phenomenon is classified as hybrid sterility arising from genetic incompatibility between species and cannot be utilized in breeding programs as a tool for managing male sterility.

General information about the subject — on the page Cytoplasmic Male Sterility (CMS).

Sources5

Varieties of Hybrids between Hibiscus paramutabilis and Hibiscus syriacus mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.