播期对丸粒甜菜个体发育及产质量的影响

The Influence of Sowing Date on the Ontogenesis, Yield and Quality to Pill Grain Sugar Beet

为探讨播期、移栽期与丸粒甜菜生长发育的关系，明确最佳纸筒育苗播种期、最佳移栽期，指导甜菜生产，开展了播期、移栽期对丸粒甜菜个体发育及产质量的影响研究。结果表明，4月25日至5月15日，每迟播5天甜菜的根重、叶重、锤度、纯度、产量／ha、含糖量、产糖量都呈下降趋势。因此，适期早播、适期移栽是提高甜菜产量和产糖量的有效途径。

In order to study the relationship between sowing date, transplanting period and the development of pill grain sugar beet, identify the best sowing date and transplanting period for the paper tube seedling, provide guide to the sugar beet production, this research mainly studied the influence of sowing date and transplanting period on the ontogenesis, yield and quality to pill grain of sugar beet. The results show that between April 25 and May 15, planting sugar beet every 5 days late, the root weight, hammer, purity, yield, sugar content and sugar yield were falling. Therefore, optimum period early sowing and transplanting in suitable period are effective ways to improve the yield and sugar yield of sugar beet.