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An analysis of heterotic potential for agronomically important traits in sunflower (Helianthus annuus L.) by Skoric Dragan; Jocic S.; Hladni Nada; Vannozzi G.P. is a Agricultural and Biological Sciences article available to read on EtoBox.

What is An analysis of heterotic potential for agronomically important traits in sunflower (Helianthus annuus L.) about?

Study of inbreeding and heterosis in sunflower has been taking place for over 80 years now. Practical application of the phenomenon of heterosis in this species began after the discovery of a suitable source of cytoplasmic male sterility in 1969 and that of restorer genes. Many authors have reported significant manifestation of heterosis for seed yield and yield components as well. Also, the mode of inheritance of agronomically important traits in the F 1 and F 2 generations has been thoroughly examined. Positive correlations for yield have been established between parental lines and F 1 hybrids. The GCA and SCA for yield and yield components have been well studied. Solutions have been suggested on how to increase the harvest index and sink capacity as well as the contributions of individual physiological parameters in the process of yield augmentation. In order to increase heterotic effects for seed yield and oil yield and direct and indirect yield components, it is necessary to increase the genetic variability of pre-breeding materials, achieve improved efficacy at the inbreeding stage, and streamline and accelerate the process of GCA and SCA evaluation using molecular markers an

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Author

Skoric Dragan; Jocic S.; Hladni Nada; Vannozzi G.P.

Publisher

National Library of Serbia

Published

2007

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)