Civac 19
ActiveHybrids between Citrus x aurantium L. x Citrus trifoliata L.
Jesús Asensi Benlloch^^^Juan Bautista Forner Valero^^^María Ángeles Forner Giner
Diseases
Root rots are a complex of soil-borne fungal diseases affecting the underground part and the basal zone of plants. The infection manifests latently and leads to a 15–40% reduction in crop productivity.
Mentioned in descriptions 5 232 varieties reference book.
Root rots represent a group of pathologies affecting roots, tillering nodes, and underground internodes. The disease manifests as stand thinning, necrosis and browning of the root system, as well as the appearance of brown spots, streaks, and coatings on the basal part of the stem. External signs are often hidden and masked as nutrient deficiencies or winterkill, which is expressed in plant stunting, stem breakage, empty ears, and shriveled grain.
Disease development depends on a combination of abiotic factors and agronomic conditions. The infection actively progresses under excessive soil moisture, crop rotation violations, monoculture cropping, and the use of infected seed material. Mineral nutrient imbalance, especially potassium and phosphorus deficiency combined with nitrogen excess, reduces the natural immunity of plants, creating favorable conditions for pathogen activity across a wide temperature range.
In breeding practice, resistance to rots is often defined as tolerance—the ability of a plant to maintain productivity when infected. Variety evaluation is conducted on artificial and natural infection nurseries using quantitative disease scales from 1 to 9. Biophysical and conductometric methods are used for rapid analysis of the degree of tissue damage by pathogenic toxins.
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.
Hybrids between Citrus x aurantium L. x Citrus trifoliata L.
Jesús Asensi Benlloch^^^Juan Bautista Forner Valero^^^María Ángeles Forner Giner
Rhipsalis ewaldiana Barthlott & N. P. Taylor
PASSIE PLANT KWEKERIJ V.O.F.
Echeveria agavoides Lem. · Molded wax agave
Euro Cactus Holland B.V.
Hybrids between Echinacea purpurea (L.) Moench and Echinacea paradoxa (Norton) Britton
HARINI KORLIPARA
Chrysanthemum L. · Chrysanthemum
Fides B.V.
Campanula L. · Bellflower
Sakata Seed Corporation (SCC)
Ipomoea batatas (L.) Lam. · Sweet potato
Don R. LaBonte^^^Christopher A. Clark^^^Arthur Q. Villordon^^^Tara Smith
Digitalis x fulva Lindl.
Paul Gehrke
Begonia-Rex-Hybridae · King begonia
BOOMAN JAMES LAWRENCE
Scabiosa columbaria L. · Small scabious
Kieft Bloemzaden B.V.
Petunia Juss. · Petunia
GAIL SHAFER
Choisya x dewitteana Geerinck
Alan Postill
Triticum aestivum L. · Bread wheat
Chaika Anatolii Mykolaiovych, Dubova Oksana Anatoliivna, Burdeniuk-Tarasevych Larysa Antonivna,
Triticum aestivum L. · Bread wheat
Shcypak, Hennadii Matviiets, Volodymyr Maliienko, Mykola Shcypak, Vasyl Vasylovych Shcypak, Vasyl Hennadiiovych
Pisum sativum L. · Pea
ROMAN TYLLER
Triticum aestivum L. · Bread wheat
Oks`om Volodymyr Polikarpovych, Morhun Volodymyr Vasyl`ovych, Morhun Volodymyr Vasyl`ovych,
Pisum sativum L. · Pea
Shtelma Andrii Mykhailovych, Shevchenko Larysa Mykolaivna, Hliantsev Andrii Vasylovych, Vasylenko Antonina Oleksandrivna, Bezuhlyi Ihor Mykolaiovych,
Triticum aestivum L. · Bread wheat
ARTIUSHENKO NATALIIA, ARTIUSHENKO PETRO, ARTIUSHENKO ARTEM, ARTIUSHENKO IULIIA
Hordeum vulgare L. · Barley
RAGT 2n, FR
Triticum aestivum L. · Bread wheat
Zalohina-Kyrkelan Mariia Anatoliivna, Ternovyi Kyrylo Petrovych, Traskovetska Vita Anatoliivna, Babaiants Lazar Tihranovych, Babaiants Olha Vadymivna,
Triticum aestivum L. · Bread wheat
Kharchenko Mykhailo Volodymyrovych, Suddenko Vladyslav IUriiovych, Murashko Liudmyla Anatoliivna, Vlasenko Volodymyr Anatoliiovych, Fedorenko Iryna Viktorivna, Solona Valentyna Iosypivna, Khomenko Svitlana Olehivna, Demydov Oleksandr Anatoliiovych,
Triticum aestivum L. · Bread wheat
Humeniuk Oleksandr Volodymyrovych, Holyk Liubov Mykolaivna, Koliuchyi Vasyl` Trokhymovych, Kovalyshyna Hanna Mykolaivna, Basanets` Hanna Stepanivna, Kavunets` Valerii Petrovych, Derhachov Oleksandr Leonidovych, Kyrylenko Vira Viktorivna, Kochmarskyi Valen
Triticum aestivum L. · Bread wheat
Zhelevs`ka Lidiia Volodymyrivna, Chaika Anatolii Mykolaiovych, Dubova Oksana Anatoliivna, Burdeniuk-Tarasevych Larysa Antonivna,
Triticum durum Desf. · Durum wheat
Kharchenko Mykhailo Volodymyrovych, Kovalyshyna Hanna Mykolaivna, Hudzenko Volodymyr Mykolaiovych, Kochmarskyi Valentyn Serhiiovych, Fedorenko Maryna Viktorivna, Solona Valentyna Iosypivna, Khomenko Svitlana Olehivna, Demydov Oleksandr Anatoliiovych,