Comparing agronomic performance of breeding populations derived from anther culture and single-seed descent in rice
2003
Moon, H.P. | Kang, K.H. | Choi, I.S. | Jeong, O.Y. | Hong, H.C. | Choi, S.H. | Choi, H.C.
This experiment was conducted to compare the breeding efficiency of anther culture (AC) and single-seed descent (SSD) methods. A total of 380 AC lines and 916 F6 SSD lines derived from Ilpumbyeo/Nonganbyeo were evaluated for field performance of yield-related traits, including grain quality. No significant difference was found in mean comparisons of yield components between the two methods. There was a wide range of trait variation, and high transgressive segregation for each trait was detected among the populations derived from either the AC or SSD method. Regardless of breeding method, a high frequency of the desirable transgressive lines was found for the three traits (panicle length, number of grains per panicle, and fertility), indicating that selecting superior recombinants of these traits could be possible by either the AC or SSD method. The mean performance of agronomic traits in 45 selected elite lines and the five top-ranking lines did not differ significantly between the two breeding methods. Overall, the AC method produced a considerable extent of genetic variation and superior rice genotypes in the cross we used, implying that the AC method can be reliably used for the rice breeding program.
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Эту запись предоставил International Rice Research Institute