Variety traits
CMS is a condition in plants where pollen is either not produced or is non-viable despite the normal development of female organs. It is a fundamental trait in commercial seed production that prevents self-pollination and allows the production of hybrid seeds without manual emasculation.
Mentioned in descriptions 4 451 varieties reference book.
Cytoplasmic male sterility manifests as the absence of fertile pollen, while pistillate organs remain functional. In breeding processes, such plants are used as maternal lines, which are pollinated by paternal forms to ensure 100% hybridity of the offspring. To obtain commercial fertile hybrids, nuclear fertility-restorer genes are introduced into the plant genotype, ensuring normal pollen development in the final product.
The trait is evaluated by determining the degree of pollen sterility, morphological examination of anthers for signs of degeneration and their ability to dehisce, as well as by microscopic analysis of pollen grains. Modern methods include the use of molecular DNA markers to identify sterility genes in mitochondria and restorer genes in the nucleus.
The manifestation of CMS depends on the interaction between the genotype and environmental conditions, including temperature and humidity, which can affect the stability of the trait. Incomplete fertility restoration in commercial crops can lead to seed set issues, so when selecting a hybrid, the originator's guarantee regarding the effective performance of fertility restorers under field conditions is important.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Helianthus annuus L. · Sunflower
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Helianthus annuus L. · Sunflower
Poljoprivredni Institut Osijek, HR
Cichorium intybus L. · Chicory
Hoquet Endives (FR)
Miscanthus x giganteus J. M. Greef & Deuter ex Hodk. & Renvoize · Giant miscanthus
Kvak Volodymyr Mykhailovych, Henzhenko Oleksandr Mykolaiovych, Hontarenko Svitlana Mykolaivna, Humentyk Mykhailo IAroslavovych, Kurylo Vasyl` Leonidovych, Roik Mykola Volodymyrovych,
Solanum tuberosum L. · Potato
Hodowla Roślin Szyldak sp. z o.o.
Hydrangea serrata (Thunb.) Ser. var. serrata · Tea-of-heaven
Information regarding the breeder received in the contribution to CPVO :Inaba Masaru
Hydrangea serrata (Thunb.) Ser. var. serrata · Tea-of-heaven
No information of breeder available for this variety
Hedera helix L. · Common ivy
Benyeine Dr. Himmer Marta
Brassica napus L. · Rapeseed
Dr. Werner Paulmann, Dr. Martin Frauen,
Secale cereale L. · Rye
Peter Skov Kristensen
Cichorium intybus L. · Chicory
Hoquet Endives (FR)
Brassica oleracea L. (White Cabbage Group) · White cabbage
Sjaak van de Ploeg
Zea mays L. · Maize
Gribincea Vladimir Nicolae, Lebediuc Gheorghe Victor, Ciobanu Valentin Gheorghe, Spinu Angela Petru, Partas Eugenia Condrat, Meleka Anatol Constantin, Marangici Gheorghe Constantin, Mistret Silvia Ion, Guzun Lucia Zahar, Vanicovici Nicolai Gheorghe, Matic
x Triticosecale Wittm. ex A. Camus · Triticale
Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy
Zea mays L. · Maize
Melnyk Taras Vitaliiovych, Moskalenko Volodymyr Fedorovych, Melnyk Vitalii IAkovych,
Zea mays L. · Maize
Melnyk Vitalii IAkovych, Moskalenko Volodymyr Fedorovych,
Zea mays L. · Maize
Melnyk Vitalii IAkovych, Moskalenko Volodymyr Fedorovych,
Secale cereale L. · Rye
Dr.Peer Wilde
Secale cereale L. · Rye
KWS Lochow
Cucumis melo L. · Melon
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Secale cereale L. · Rye
Dr.Peer Wilde
Zea mays L. · Maize
Melnyk Vitalii IAkovych, Moskalenko Volodymyr Fedorovych,
Secale cereale L. · Rye
Peer Wilde
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans Georg Lembke KG, Holtsee DE