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Discussion on available value of indica-compatiblejaponica line in inbred rice breeding |
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DOI:10.16768/j.issn.1004-874X.2016.06.006 |
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Abstract: |
Indica-japonica crossing is a powerful approach to broaden genetic basis and develop elite variety,
indica-compatible japonica line is situated a special position in indica-japonica crossing breeding. Indica-compatible
japonica line is japonica line with indical S type,the concept was put forward by Zhang gui-quan in 1994,the line
was developed as A line in indica- japonica hybrid. The relations between indica-compatible japonica line with other
concepts such as wide-compatibility,specific compatibility,indica- japonica hybrid,indica- japonica varity,indica
rice introgressed by japonica rice were distinguished. The reason why indica-compatible japonica line couldn’t be
qualified as a registered variety is the low efficiency of development of indica-compatible japonica line,the difficulty
of application of indica-compatible japonica line in inbred rice breeding is the low efficiency of development of indicacompatible
japonica line and small scale of concerned breeding. The line is actually important in large-scale indicajaponica
crossing breeding. The approach to apply the line was expounded. The efficiency to develop indica rice
introgressed by japonica rice via application of indica-compatible japonica line,the breeding for indica-compatible
japonica line was carried out preliminarily . |
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