Genetic potential for breeding for low tare
2001
Olsen, J.K. | Gram, N.H. | Joergensen, A.B. (Danisco Seed (Denmark))
Over the past decade a renewed focus has been set to soil tare. This has also been the case within Danisco. Different approaches to reduce the soil tare have been investigated. The main target is to leave the soil in the field. In this way costs for transport can be reduced, less water is needed for washing, the needs for soil depot will be reduced, etc. The shape of the beet was one of the objects in focus. Does the beet necessarily need to look like it does? From nature, Beta vulgaris has many forms ranging from table beet over fodder beet to sugar beet. New and improved lines have been selected based on sugar fodder beet crosses and subsequent backcrosses. The selection criteria have been low soil tare and smooth shape as first priority, but at the same time maintaining the high sugar content and good juice purity. Examples of clean sugar beet types are given in the poster. It is possible to select for low soil tare lines with high sugar contents and with good juice purity. The sugar yield per hectare from the first hybrids can match existing commercial varieties. The most promising material is giving a reduction in soil tare up to 50 percent compared to the varieties grown today.
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