Variability of anther-derived plants in rice (Oryza sativa L.) -(3)- variability of qualitative characters in anther-derived plants
1988
Yang, S.J. | Oh, B.G. | Chung, G.S. (Rural Development Administration, Milyang (Korea R.). Yeongnam Crop Experiment Station) | Sohn, J.K. (Kyongbuk National Univ., Taegu (Korea R.). Coll. of Agriculture)
The present study was focused on variability of qualitative characters in anther-dervied plants to obtain basic information for rice breeding through anther culture. Variability in the progeny of anther-derived plants, A2 lines, were compared with F2 generation of the same cross combination. The frequency of tall in culm length was 79% in 594 F2 plants, but 56% in 175 A2 lines derived from Milyang 74/Dashukei 2 F1 hybrids. The ratio of tall to short was 3:1 in F2 population, and 1:1 in A2 lines. Short culm of Milyang 74 was controlled by a recessive gene. There were no variants related to glaborous leaf blade of Dashukei 2 and resistant reaction to bacterial leaf blight, pathotype K1, of Milyang 74 in A2 lines. The glaborous leaf blade of Dashukei 2 controlled by a recessive gene and resistant reaction to bacterial leaf blight pathotype K1, of Milyang 74 controlled by a dominant gene were domonstrated in both F2 population and A2 lines derived from Milyang 74/Dashukei 2 F1 hybrids
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