ISSN:
1573-5060
Keywords:
Oryza sativa
;
rice
;
photosynthesis
;
grain yield
;
genotype
;
isozyme
;
esterase
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Four Indica and one Japonica (Tainung 67) of rice (Oryza sativa L.) varieties had an esterase band (tentatively designated as E1), and also had higher photosynthetic ability than other five Japonica varieties without E1 band. The F1 plants of Tainung 67 × Mineyutaka (low photosynthetic ability, no E1 band) showed E1 band and a low photosynthetic ability. Of 34 F2 plants, 28 had E1 band, but 6 had no E1 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 E1 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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00034463
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