Variety traits
Hydrangea macrophylla (Thunb.) Ser.
In Hydrangea macrophylla, male sterility manifests as pollen degradation resulting from selection for double flowers and ornamental inflorescence traits. This condition is not a commercial metric and represents a side effect of mutations in reproductive organ development.
In the reference 278 varieties crop Bigleaf hydrangea, where this is mentioned in the description.
Male sterility in Hydrangea macrophylla is closely linked to the inflorescence structure of ornamental cultivars. In forms with double flowers, abortion or degradation of pollen is frequently observed, which is considered a consequence of genetic disorders similar to mutations in floral organ development genes.
In breeding programs, male sterility is evaluated experimentally through analysis of pollen grain morphology using scanning electron microscopy, testing of pollen viability, and assessment of seed set during backcrossing. This trait does not have standardized agronomic scales and is not utilized in industrial hybridization.
General information about the subject — on the page Cytoplasmic Male Sterility (CMS).
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.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
No information of breeder available for this variety
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Hirasawa
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Grant
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Iida Takemi & Watanabe Kenji
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
No information of breeder available for this variety
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Dr. Varnier? R. Mallet?
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Wädenswil
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Japan
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Yamamoto Takeomi
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Wädenswill
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Yamamoto Takeomi
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Wädenswil
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Yamamoto Takeomi
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Wädenswil
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Mallet C.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
No information of breeder available for this variety
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Sturdza G.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Wädenswil
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Darthiuzer
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Wädenswil
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Barbier
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Wädenswil
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Darthiuzer
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Wezelenburg K.