ISSN:
1573-5060
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Oxidative phosphorylation of sugarbeet root mitochondria isolated from 11 hybrids and their parental inbreds, and of mixtures of mitochondria from the parental inbreds, were measured at four different sampling stages, (Aug. 1–7, Sept. 1–7, roots stored at 5°C, and regrowth of stored roots). Mitochondrial complementation (the increased efficiency or ADP:0 ratio of mixtures of inbred mitochondria) was calculated for each hybrid at each stage. When beets were growing rapidly (Aug. 1–7) it was small but at the other stages it was absent. Only at the Aug. 1–7 sampling stage was there a significant correlation (0.75) between mitochondrial complementation and root weight heterosis. The small complementation effects made it difficult to detect differences in complementation, and thus difficult to predict root yield heterosis. Thus, this technique is not recommended as a tool in sugarbeet breeding.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00028205
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