甜菜不同种植方式的研究

通过试验明确了覆膜移栽纸筒苗栽培方法具有覆盖地膜和育苗移栽双重效应，促进甜菜早发棵，早封垄。提早进入叶丛快速生长期和块根糖分积累期；改善了甜菜光合性能，增加了光合势、净光合率和光合产物经济系数，比不覆膜移栽纸筒苗的增产31％，产糖量增加27．12％，投入产出比大幅度增加。     

不同类型甜菜品种根中Mg^2＋-ATP酶活性和产质量的关系

测定不同类型甜菜品种各生育时期根中Mg^2＋-ATP酶活性、可溶性总糖、可溶性蛋白含量和产量、含糖率。结果表明,在幼苗期和叶丛繁茂期,Mg^2＋-ATP活性呈先上升后下降趋势,从块根增长期直至糖分积累期,Mg^2＋-ATP酶的活性逐渐增强,并保持在全生育期最高水平。不同类型品种间存在差异,在各生育时期高糖型品种Mg^2＋-ATP酶活性较强。根中Mg^2＋-ATP酶活性与根中可溶性总糖呈正相关,与甜菜根的成熟进程正相关;Mg^2＋-ATP酶活性与可溶性蛋白质舍量呈负相关,对可溶性糖的积累方面,二者的作用刚好相反。高糖型品种的可溶性总糖含量较高．相应的根中蛋白质含量很低。Mg^2＋-ATP酶活性较高．     

国家甜菜区试品种在甘肃河西走廊丰产与稳定性及抗病性评价

用品种稳定性参数及高稳系数（HSC）,对2004～2005年参加国家甜菜区试中的5个品种在甘肃武威市黄羊镇和酒泉地区的试验结果进行了综合分析,结果表明：BTS356的丰产、稳产性好．两年平均根产量和产糖量分别较对照陇糖2号增产40．62％和39．94％,差异达极显著水平,含糖率18．73％;对黄化病、白粉病、立枯病的抗性优于对照,具有较高的应用价值,适宜在甘肃省河西走廊生态条件下推广种植。     

甜菜单胚雄性不育系及保持系雌蕊形态学及细胞学研究

以甜菜单胚雄不育系和保持系为材料,用光学显微镜对其雌性器官各部发育进行了比较解剖学观察．结果如下：甜菜雌蕊由3—5枚心皮合生而成,外形可分为柱头、花柱和子房三部分。各部解剖学特征：（1）柱头3—5枚离生稍向外生长,柱头正面由大量乳突细胞组成;（2）花柱短小,半开放形,开口较小,其内充满腺毛状结构;（3）半下住子房,心皮合生一室,在外侧愈合交界处,有发达的盘状蜜腺;胚珠1枚基底胎座,曲生形胚珠,双珠被厚珠心．蓼形胚囊,并有盲囊结构产生。研究表明,甜菜雄不育和可育的雌蕊、胚珠、胚囊形态结构相似,均可正常发育,两者均具有受精与结实能力．     

甜菜田金都尔除草剂药效试验

金都尔除草剂应用于纸筒育苗甜菜和直播甜菜的除草效果试验结果表明,对禾本科杂草防治效果较好,平均防效为93．62％,对其它杂草防治效果不佳,防效低于35．71％。     

甜菜产生叉根的原因初探

从种子芽势、作物茬口、播种量、镇压次数、育苗苗龄方面调查分析了甜菜产生叉根的原因。     

不同栽培方式对甜菜产质量的影响

2006～2007年进行了2年4个点的甜菜覆膜直播栽培（CK）、甜菜纸筒育苗平地移栽、甜菜纸筒育苗覆膜移栽、甜菜纸筒育苗起高垄移栽4种种植方式试验。结果表明,后3种种植方式,根产量、含糖率和产糖量,除了纸筒育苗覆膜移栽的含糖率低于覆膜直播外,均比对照增产增糖。农户种植纯收入比覆膜直播增加1095-3315元／hm^2,企业效益除纸筒育苗覆膜移栽低于覆膜直播．其它高于对照。     

FEM analysis of subsoil reaction on heavy wheel loads with emphasis on soil preconsolidation stress and cohesion

Heavy sugarbeet harvesters may compact subsoil. But it is very difficult to study this by field experiments that resemble agricultural practice. Therefore, an analysis was made by a finite element method (FEM) for a relevant calcaric fluvial soil profile, the mechanical properties of which were largely known. Measuring data of this Lobith loam soil includes preconsolidation stress, compression index and swelling index, all as a function of depth. Using these three types of soil parameters calculations have been done for tyre sizes, inflation pressures and wheel loads that occur with heaviest sugarbeet harvesters available on the European market in 1999. Because no values on soil cohesion were available, the calculations were done for several cohesion levels. The results include the detection of regions with Mohr–Coulomb plasticity and regions with cap plasticity (compaction hardening). For the soil studied—a typical soil strength profile for arable land with ploughpan in the Netherlands in the autumn of 1977—all studied combinations of wheel load and inflation pressure did not induce compaction in and below the ploughpan. The size of the region with Mohr–Coulomb plasticity decreased with increasing cohesion. It appeared from a sensitivity analysis that, although soil modelling may use a great number of soil parameters, the most important parameters seem to be: preconsolidation stress and cohesion. There is an urgent need for data of these parameters that are measured on a great range of subsoils and subsoil conditions.     

快速大量提取甜菜DNA的新方法

以甜菜幼嫩叶片为材料,通过冷冻真空干燥将材料变成干粉,利用CTAB法对DNA提取程序进行了研究,建立了一种简单、快速的甜菜DNA提取程序,既节省时间,又可获得高质量的DNA,可以满足SSR及SRAP扩增的需要。     

甜菜遗传单粒型多倍体杂交种九甜单一号的选育

九甜单一号系采用单粒二倍体雄不育系九三ＭＳＡ－１为母本，多粒四倍体授粉系ＧＷ６５－３为父本配制而成的遗传单位型多倍体杂交种。经生产试验鉴定，其稚产量、含糖率、产糖量分别比对照品种甜研３０１提高１６．５％、０．６８度、２１．４５％。该品种丰产性突出、含糖率稳定、抗病性强，适宜大面积机械化精量点播和纸筒有苗移栽，属丰产型甜菜品种。