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随着我国甜菜制糖工业的迅速发展,新、老区的甜菜种植面积逐年扩大,所需种子亦大为增加。目前,甜菜种子亩产变动于200—300斤之间,尚有增产潜力。甜菜种子产质量受母根培育条件、贮藏技术、栽植质量、施肥水平、病虫害防治、灌溉、田间管理等诸因素影响。所谓无效种株可分为两类:一是无苔植株(亦称顽固植株);二是抽苔不实植株。尚有发育迟缓,结实状况介于不实株与正常结实株之间的中间类型,称为晚育株,其种球多半小而空秕,丧失种用价值。于目前生产条件下,在一般甜菜采种田中约
With the rapid development of sugar beet industry in our country, the area under beet cultivation in new and old areas has been expanding year by year, and the seeds required have also been greatly increased. At present, the change in the yield of beet seeds between 200-300 pounds, there is still potential for yield increase. The quality of beet seed production is affected by factors such as parental breeding conditions, storage technology, planting quality, fertilization level, pest and disease control, irrigation and field management. The so-called invalid strains can be divided into two categories: First, no moss plants (also known as stubborn plants); Second, moss unworked plants. There are still retardation, the solid state between the non-real and normal strains between the middle type, known as late-breeding strains, the ball is mostly small and empty, loss of species value. In the current production conditions, the general sugar beet farming about