Abstract
Protoplast-derived rice plants of four Japanese cultivars, Nipponbare, Fujisaka 5, Norin 14 and Iwaimochi were individually cultivated in a submerged paddy field. They exhibited more stems, which resulted in more panicles than respective control plants. Other characteristics of protoplast-derived plants were (compared with controls): a slightly shorter or similar culm length, fewer spikelets per panicle, slightly lower seed fertility and similar or lighter 1,000 kernel weight. Grain yield of protoplast-derived plants was more than that of respective control plants in four cultivars. The cause of the higher yield of protoplast-derived plants seems to be mainly due to increased panicle number. Among 126 protoplast-derived plants, 1 triploid, 10 tetraploids and 1 aneuploid were found. Furthermore, 11 variants with low seed fertility showing no gross chromosomal anomalies and one plant with abnormal panicles were found. In total, about 80% of protoplastderived plants showed normal characters. The present results are encouraging for the possibility of rice breeding using protoplasts.
Original language | English |
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Pages (from-to) | 670-676 |
Number of pages | 7 |
Journal | Theoretical and Applied Genetics |
Volume | 74 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1987 Sep 1 |
Externally published | Yes |
Keywords
- Agronomic characters
- Cytology
- Protoplast-derived plants
- Rice cultivars
- Somaclonal variation
ASJC Scopus subject areas
- Biotechnology
- Agronomy and Crop Science
- Genetics