Abstract: 【Objective】In order to obtain a better seed collection mode of biennial sugarbeet.【Methods】The effects of wheat,corn and biennial beets stubble on seed collection of biennial sugarbeet were compared in the open-field overwintering and cellar storage overwintering modes, and herbicide sprayed and no herbicide on the seed harvesting of biennial sugarbeet in Pei County, Jiangsu Province.【Results】The results showed that the bolting rate of the test materials was significantly higher than that of the cellar. Among them,the bolting rates were 80.8% and 95.2% respectively,the 1000-grain weight was 15.27 and 17.87 g,germination rate was 85.33% and 93.67%,seed yield was 1 664.80 and 2 072.70 kg/hm²,respectively. Under different stubble treatments with the same overwintering pattern,there was no significant difference in bolting rate.The 1000-grain weight of wheat,corn and biennial sugarbeet stubble treated were 17.87,15.27,14.13 g,germination rate 93.67%,88.33% and 83.33% respectively,and seed yield 2 072.70,2 422.50 and 1 750.65 kg/hm²,among them, sugarbeet seed yield in the maize stubbles, was 38.38% higher that in biennial sugarbeet stubbles; The previous stubble herbicide sprayed had an inhibitory effect on seed production of sugarbeet compared with no herbicide sprayed.【Conclusion】When selecting seed production base, the previous stubble, no herbicide used and higher soil fertility should be selected first. The overwintering mode of open-field should be selected,which can save labor cost and produce better effect.

Key words: Sugarbeet, Seed collection, Overwintering mode, Stubble