Variety traits
Cucumis sativus L.
Heterosis in cucumber is manifested by the superiority of F1 hybrids over parental lines or standards, which is utilized to increase yield and improve adaptability.
In the reference 4 varieties crop Cucumber, where this is mentioned in the description.
In cucumber breeding, heterosis is evaluated by comparing the economically valuable traits of a hybrid with its parental forms or locally adapted standard varieties. The main indicators used for analysis are early and total yield, number of fruits per plant, photosynthetic intensity, main stem length, and biochemical parameters of the fruit. When calculating the degree of dominance, values greater than one for productivity traits indicate the presence of an overdominance effect.
The positive heterosis effect in cucumber breeding often ranges from 10 to 22% for yield. Negative heterosis values can have breeding value when selecting for earliness, manifested as a reduction in the duration of the interphase period from germination to flowering. Utilizing the heterosis effect allows for the efficient combination of traits such as parthenocarpy, female flowering type, and complex resistance to pathogens in a single hybrid organism.
General information about the subject — on the page Heterosis.
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.
Cucumis sativus L. · Cucumber
D. Kostova, M. Aleksandrova, M. Nikolova