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粒用高粱之所以含有单宁是由于它有一层种皮,而种皮层的有无受两个显性互补基因控制。所以,用遗传学的方法来消除高粱品系和杂种的种皮和单宁是不难做到的。但是,把所有粒用高粱的单宁消除干净也许意味着取消某些地区的高粱生产。所以,虽然含有单宁的高粱的饲喂价值差一点,但仍然会保持一定的面
The reason why grain sorghum contains tannin is because it has a layer of seed coat, while the seed coat is controlled by two dominant complementary genes. Therefore, it is not difficult to genetically eliminate the seed coat and tannin of sorghum lines and hybrids. However, the removal of all grain sorghum tannins may mean the elimination of sorghum production in some areas. So, although the feeding value of sorghum with tannin is almost the same, it still maintains a certain level