Photosynthetic ability, grain yield and an esterase band in rice genotypes

✍ Scribed by Jen-Hsien Weng; Ching-Yih Chen

• Book ID: 104616109
• Publisher: Springer
• Year: 1989
• Tongue: English
• Weight: 290 KB
• Volume: 42
• Category: Article
• ISSN: 0014-2336
• DOI: 10.1007/bf00034463

✦ Synopsis

Four Indica and one Japonica (Tainung 67) of rice (Oryza sativa L.) varieties had an esterase band (tentatively designated as E,), and also had higher photosynthetic ability than other five Japonica varieties without E, band . The F, plants of Tainung 67 x Mineyutaka (low photosynthetic ability, no E, band) showed E, band and a low photosynthetic ability . Of 34 F2 plants, 28 had E, band, but 6 had no E, band of which 5 plants showed a low photosynthetic ability . These results suggest that an esterase gene and one of the photosynthesis gene are linked, and the gene for low photosynthetic ability is dominant .

Among 42 new Japonica strains and 2 control varieties bred in Taiwan, most genotypes with E, band showed higher grain yield potential (grain field/growth days) in local test .

Esterase band may be used as a marker for high photosynthesis and grain yield ability in breeding .