Variety traits

Cytoplasmic Male Sterility (CMS)

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.

Sources10

Breakdown by crop

Found in these crops

Bigleaf hydrangea 278 Tea-of-heaven 104 Panicled hydrangea 94 Sunflower 77 Maize 74 Rapeseed 69 Sugar beet 64 Hydrangea 38 Rye 26 Rapeseed 22 French lavender 21 Apple 20

Varieties that feature this in their description

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.

H 1116

Active

Lavandula stoechas L. · French lavender

Kwekerij Arends Paterswolde B.V.

1 record

ZL100A

Terminated

Helianthus annuus L. · Sunflower

Shuhurova Nataliia Oleksiivna, Odynets` Serhii Ivanovych, Sereda Valentyna Oleksiivna, Shudria Larysa Ivanivna, Kutischeva Nataliia Mykolaivna,

2 records

ZL70A

Terminated

Helianthus annuus L. · Sunflower

Sereda Valentyna Oleksiivna, Shudria Larysa Ivanivna, Kutischeva Nataliia Mykolaivna,

2 records

ZL96A

Application submitted

Helianthus annuus L. · Sunflower

Sereda, Valentyna Kutishceva, Nataliia Odynets, Serhii Shcudria, Larysa

2 records

ZL22A ZL102B

Terminated

Helianthus annuus L. · Sunflower

Kutischeva Nataliia Mykolaivna, Lytovchenko Borys Kyrylovych, Scherban` Nataliia Fedorovna, Scherban` Serhii Vasyl`ovych, Riabota Oleksandr Mykolaiovych,

2 records

Zluka

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Borysova Tetiana Oleksandvivna, Borysova Larysa Serhiivna, Fedorenko Inha Anatoliivna, Mel`nychuk IUrii Viktorovych, Mel`nyk Nadiia Serhiivna, Malihon Halyna Serhiivna, Zmiievs`kyi Volodymyr Mykolaiovych, Chemerys Lina Mykolaivna, Panov Mykhailo Ivanovych

2 records

X19WT278C

Withdrawn

Brassica napus L. · Rapeseed

Jean-Claude Pruvot

1 record

Zumo

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Bernström, P/Johansson, Evert/Lindqvist, Kjell

2 records

Wirgo

Active

Nicotiana tabacum L. · Tobacco

Instytut Uprawy Nawożenia i Gleboznawstwa Państwowy Instytut Badawczy

1 record

Wilau

Terminated

Allium schoenoprasum L. · Chives

DRESSLER| Dr. Ottfried Dressler

1 record

VTs 380 MV

Terminated

Zea mays L. · Maize

Dziubets`kyi Oleksii Borysovych, Maksymova Lidiia Oleksiivna, Ilchenko Larysa Anatoliivna, Bodenko Natalia Anatoliivna, Halechko Ivan Dmytrovych, Hlushko Vasyl` Vasyl`ovych, Olyz`ko Oleksii Petrovych, Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovy

2 records

Wiślica

Terminated

Nicotiana tabacum L. · Tobacco

Centralne Laboratorium Przemyslu Tytoniowego

1 record

VENTOSE

Terminated

Cupressus L. · Cypress

La Jardinerie Vernet SARL (FR)

1 record

Virjinia PVH 19

Terminated

Nicotiana tabacum L. · Tobacco

Silvio Schaeffer, Santa Kruz Do Sul (BR)

1 record

Victoria KWS

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat AG, DE

1 record

UH6M steryl`na

Active

Zea mays L. · Maize

Osadchyi Serhii Stepanovych, Khromenko Vitalii Oleksandrovych, Kalinchuk Oleh Ivanovych,

2 records

Verum

Terminated

Miscanthus x giganteus J. M. Greef & Deuter ex Hodk. & Renvoize · Giant miscanthus

Drahun Oleksandr Viktorovych

2 records

Venus

Active

Muscari · Grape hyacinth

Ruksans

1 record

TRI X 626

Withdrawn

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

NOVARTIS SEEDS B.V.

1 record

Terravesta Athena

Active

Miscanthus x giganteus J. M. Greef & Deuter ex Hodk. & Renvoize · Giant miscanthus

Terravesta Assured Energy Crops Limited

2 records

TANORI 71

Withdrawn

Triticum aestivum L. · Bread wheat

MAHISSA

1 record

Tardif de mars

Terminated

Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage

Domaine Public (FR)

1 record

Svalia

Terminated

Daucus carota L. · Carrot

Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas

1 record

Sophie

Terminated

Petunia Juss. · Petunia

LIEBIG ALFRED| Alfred Liebig

1 record

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Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.