Influence of Seed Color and Hull Proportion on Quality Properties of Seeds in Brassica napus L.

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Abstract
Percentage of crude fiber, hull proportion, 1000‐seed weight, as well as oil and protein content of seeds were studied for the first time in genotypes of Brassica napus L. differing in seed color. Yellow and brown seeds exhibited a 3 % reduction in fiber and hull contents as compared to the commonly occurring black seeded forms. In addition, an average of 2.6 % higher oil and protein content was determined in brown vs. black seeds indicating that breeding for light seeded cultivars of rapeseed has great impacts on the chemical properties of the seed. As a rapid procedure of selection for low crude fiber content in rapeseed, the simple determination of hull proportions proved to be more adequate than the direct chemical analysis of the fiber which is commonly practised.

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