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甜菜的产量和质量与甜菜品种的种性和甜菜种子的繁育制度密切相关。目前,我省的甜菜良种繁育仍沿用三级繁育制。即:超级原种、原种和生产用种。也就是从超级原种繁殖原种母根开始,到繁殖出生产用种止,经过两个生活周期,需要四年的时间,由于在这样的繁殖过程中,容易引起品种的混杂和退化,降低甜菜种子的品质。尤其是在无选择的情况下,多繁殖一个世代,就会加速其退化。近几年,我们在江苏省的北部,进行甜菜露地越冬采种生产。该地区气候温和、灌溉条件好、耕作细致、种子质量好,用地少,成本低,而且后代原料甜菜有增糖的趋
The yield and quality of beet are closely related to the variety of beet varieties and the breeding system of beet seeds. At present, the breeding of sugarbeet varieties in our province still uses the three-level breeding system. Namely: Super original species, original species and production of species. That is, from the super seed breeding primordial roots, to breed the production of species only, after two life cycles, it takes four years, as in this breeding process, easily lead to the variety of hybrids and degradation, reduce Beet seed quality. Especially in the absence of choice, the multiplication of one generation will accelerate its degradation. In recent years, we have been planting winter beets in the northern part of Jiangsu Province. The mild climate, good irrigation conditions, fine cultivation, good seed quality, less land, low cost, and sugar beet progeny of the progeny trend