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当前位置: 首页 > 文章 > 提高甜菜四倍体含糖率和抗病性的研究 中国农业科学 1981,14 (6) 29-32
Position: Home > Articles > STUDIES ON THE IMPROVEMENT OF SUGAR CONTENT AND THE RAISE OF DISEASE RESISTANCE IN TETRAPLOID SUGAR BEET Scientia Agricultura Sinica 1981,14 (6) 29-32

提高甜菜四倍体含糖率和抗病性的研究

作  者：
杨炎生;孙以楚
单  位：
中国农业科学院甜菜研究所
摘  要：
多倍体甜菜具有丰产性稳定的特点,在较好的栽培管理条件下增产潜力很大,但是与二倍体甜菜品种相比,却表现出含糖率偏低、抗褐斑病和耐根腐病的性能较差等缺点,因而在推广应用方面往往受到一定的限制。如何克服上述缺点,就成为甜菜多倍体
译  名：
STUDIES ON THE IMPROVEMENT OF SUGAR CONTENT AND THE RAISE OF DISEASE RESISTANCE IN TETRAPLOID SUGAR BEET
作  者：
Yang Yan-Sheng Sun Yi-chu (Institute of Sugar Beet of the Chinese Academy of Agricultural Sciences)
摘  要：
Based on the field trials and previous breeding practices, two tetraploid varieties with high sugar content and disease resistance have been selected.The tetraploid materials are the basis of polyploid breeding in sugar beet (Beta vulgaries L.). A polyploid hybrid with high heterosis can be selected if a combination of excellent tetraploid and appropriate diploid parents is available.Crosses between tetraploid parents is one of the important methods for improving the sugar content, increasing the disease resistance mainly to cercospora leaf spot of beet (Cercospora beticola Sacc.) and root rot, and partially stabilizing the heterosis of polyploid hybrids.It is important to select with directive succession in polyploid breeding. It will stimulate the accumulation of the profitable genes. In this way not (nly the excellent variations could be preserved and the unprofitable ones be eliminated, but also the yield be raised, the quality be improved and the disease-resistance be increased.

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