General (GCA) and specific (SCA) combining abilities in sunflower
Конференцијски прилог (Објављена верзија)
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Used in this study were 20 new Rf-lines, five A-tester lines and their 100 hybrid combinations. A large number of agronomically important traits of these genotypes have been studied. The present paper reports the results for plant height, seed yield (kg/ha), seed oil content (%), oil yield (kg/ha), and resistance to Sclerotinia head rot.
In most of the hybrid combinations significant heterosis of various intensity levels was found for all the above traits.
Analysis of the combining abilities for the traits concerned has shown that there are significant differences among the Rf-lines and A-tester lines regarding the values of the general combining ability (GCA). In some of the lines highly significant positive and negative GCA effects were observed. Analysis of the components of genetic variance has shown both additive and nonadditive gene action to be responsible for the inheritance of the traits. Still, the contribution of the nonadditive component was more significant. This is supp...orted by the GCA/SCA ratio values, which were lower than 1 and as such indicative of the higher importance of nonadditive genes in the expression of the traits.
The largest contribution to the traits’ expression was that of the A-testers. The contributions of the Rf-lines and tester/line interactions were smaller.
Based on the study’s results, it can be concluded that the following lines have the largest practical value in breeding terms: PR-ST-3A, Ha-26A, RHA-N-92, and RUS-RF-100.
Кључне речи:
Combining abilities — GCA and SCA / plant height / seed and oil yields / Sclerotinia head rotИзвор:
Proceedings, 15th International Sunflower Conference, 12-15 June 2000, Toulouse, France, 2000, 2, E23-E29Издавач:
- Paris : International Sunflower Association
Колекције
Институција/група
FiVeRTY - CONF AU - Škorić, Dragan AU - Jocić, Siniša AU - Molnar, Igor PY - 2000 UR - http://fiver.ifvcns.rs/handle/123456789/3148 AB - Used in this study were 20 new Rf-lines, five A-tester lines and their 100 hybrid combinations. A large number of agronomically important traits of these genotypes have been studied. The present paper reports the results for plant height, seed yield (kg/ha), seed oil content (%), oil yield (kg/ha), and resistance to Sclerotinia head rot. In most of the hybrid combinations significant heterosis of various intensity levels was found for all the above traits. Analysis of the combining abilities for the traits concerned has shown that there are significant differences among the Rf-lines and A-tester lines regarding the values of the general combining ability (GCA). In some of the lines highly significant positive and negative GCA effects were observed. Analysis of the components of genetic variance has shown both additive and nonadditive gene action to be responsible for the inheritance of the traits. Still, the contribution of the nonadditive component was more significant. This is supported by the GCA/SCA ratio values, which were lower than 1 and as such indicative of the higher importance of nonadditive genes in the expression of the traits. The largest contribution to the traits’ expression was that of the A-testers. The contributions of the Rf-lines and tester/line interactions were smaller. Based on the study’s results, it can be concluded that the following lines have the largest practical value in breeding terms: PR-ST-3A, Ha-26A, RHA-N-92, and RUS-RF-100. PB - Paris : International Sunflower Association C3 - Proceedings, 15th International Sunflower Conference, 12-15 June 2000, Toulouse, France T1 - General (GCA) and specific (SCA) combining abilities in sunflower EP - E29 SP - E23 VL - 2 UR - https://hdl.handle.net/21.15107/rcub_fiver_3148 ER -
@conference{ author = "Škorić, Dragan and Jocić, Siniša and Molnar, Igor", year = "2000", abstract = "Used in this study were 20 new Rf-lines, five A-tester lines and their 100 hybrid combinations. A large number of agronomically important traits of these genotypes have been studied. The present paper reports the results for plant height, seed yield (kg/ha), seed oil content (%), oil yield (kg/ha), and resistance to Sclerotinia head rot. In most of the hybrid combinations significant heterosis of various intensity levels was found for all the above traits. Analysis of the combining abilities for the traits concerned has shown that there are significant differences among the Rf-lines and A-tester lines regarding the values of the general combining ability (GCA). In some of the lines highly significant positive and negative GCA effects were observed. Analysis of the components of genetic variance has shown both additive and nonadditive gene action to be responsible for the inheritance of the traits. Still, the contribution of the nonadditive component was more significant. This is supported by the GCA/SCA ratio values, which were lower than 1 and as such indicative of the higher importance of nonadditive genes in the expression of the traits. The largest contribution to the traits’ expression was that of the A-testers. The contributions of the Rf-lines and tester/line interactions were smaller. Based on the study’s results, it can be concluded that the following lines have the largest practical value in breeding terms: PR-ST-3A, Ha-26A, RHA-N-92, and RUS-RF-100.", publisher = "Paris : International Sunflower Association", journal = "Proceedings, 15th International Sunflower Conference, 12-15 June 2000, Toulouse, France", title = "General (GCA) and specific (SCA) combining abilities in sunflower", pages = "E29-E23", volume = "2", url = "https://hdl.handle.net/21.15107/rcub_fiver_3148" }
Škorić, D., Jocić, S.,& Molnar, I.. (2000). General (GCA) and specific (SCA) combining abilities in sunflower. in Proceedings, 15th International Sunflower Conference, 12-15 June 2000, Toulouse, France Paris : International Sunflower Association., 2, E23-E29. https://hdl.handle.net/21.15107/rcub_fiver_3148
Škorić D, Jocić S, Molnar I. General (GCA) and specific (SCA) combining abilities in sunflower. in Proceedings, 15th International Sunflower Conference, 12-15 June 2000, Toulouse, France. 2000;2:E23-E29. https://hdl.handle.net/21.15107/rcub_fiver_3148 .
Škorić, Dragan, Jocić, Siniša, Molnar, Igor, "General (GCA) and specific (SCA) combining abilities in sunflower" in Proceedings, 15th International Sunflower Conference, 12-15 June 2000, Toulouse, France, 2 (2000):E23-E29, https://hdl.handle.net/21.15107/rcub_fiver_3148 .