田间的

In the self-bred progenies of autopolyploid,we found that a very few chimaeraexist in the cells of root tips,but most of them had no change in ploidy. We also found13 diploid plants in the experimental plot (ratio is 0.46%) and can be divided into 4categories.

在部分同源多倍体株系的自交结实后代中，随机取样进行根尖染色体检查，结果表明多倍株系体的自交结实后代倍性没有变化，但发现有个别细胞为不同倍性的嵌合体；田间观察到分离出来的极少数正常二倍体，占0.46％，按照形态特征可以分成四个不同的类型。

Chinaberry witches'broom, Ziziphus jujube witches'broom, Mulberry dwarf disease, JWB and Paulownia witches' broom phytoplasmas were identified by comparative studies of PCR amplify of phytoplasmal 16SrDNA、23rDNA and ribosomal protein gene, heteroduplex mobility assay, RFLP of PCR-amplified products (16S rDNA), cloning and sequence analysis of 16SrDNA and rp gene. An efficient procedure for rapid identification and differentiation of phytoplasmas was established, which could identify and differentiate phytoplasma collected from field.

通过对桑萎缩病、枣疯病、酸枣丛枝病、泡桐丛枝病和苦楝丛枝病植原体16SrDNA、23SrDNA和核糖体蛋白基因的PCR扩增、异源双链迁移率分析、16SrDNA PCR产物的限制性片段多态性分析以及植原体16SrDNA和rp基因的克隆和序列分析等比较研究，建立了一种快速确定未知植原体种类和分类地位的分子鉴别与鉴定优化程序；此程序可对田间采集的各种植物植原体样品直接进行快速鉴定和鉴别。

In addition, 11 mutants were also chosen form a commercial nursery. The main results are as follows: 1. It was the first time to conduct research on the germplasm innovation of Dracaena cambodiana.

首次对海南龙血树进行了种质创新途径的研究，田间自然变异的选择是目前最为有效的途径，组织培养分别结合EMS、60Co辐射和秋水仙素的诱变途径也是有效果的。

The basic characteristics of the whole process were gained. When the seedling falling out of the tube feet, the difference of the time interval between 2 neighboring seedlings wasn't notable, and the difference of the time interval of 2 neighboring seedlings wasn't notable and the agricultural time was not special notable. These results showed that the uniformity of the pneumatic ordered throwing transplantation was excellent and could meet the demands from design and agriculture; Upstanding state was primary as the seedling falling out of the tube feet, it showed that the seedling could keep erective preferably when the seedling falling to the field.

结果表明：钵体苗从导苗管管脚中落出时，相邻2株钵体苗落出时的时间间隔差异不显著，从左中右3个管脚落山的相邻2株钵体苗的时间间隔与农艺要求的时间差异极不显著，说明气力有序抛秧均匀性好，能满足设计要求和农艺要求；钵体苗从导苗管管脚落出时以直立状态为主，表明气力有序抛秧的钵体苗落入田间时能较好地保持直立。

The length of boundary and the area of the field is calculatedAthe objects in field Can be marked by point, line, label and the geographical feature in field can be added, deleted, found, modified and so on.

其主要内容包括：1、GPS与GIS有机地融合；2、地图的放大、缩小、移动等的GIS功能；3、地块的周长和面积计算；4、田间地物的标注；5、空间数据的采集、数据分析、现场成图、栅格采样、平行导航等功能。

The results are summarized as follows:From 2004 to 2008, field investigation was conducted in 19 locations which differ in terms of frequency of transport activities in Zhejiang, 11652 whitefly individuals collected from 154 plots were analyzed by RAPD PCR and mtCO1 sequencing to determine their genotypes. The results revealed the presence of at least 5 genotypes of B. tabaci in Zhejiang, and each genotype has its own distribution.

主要研究结果如下：2004年至2008年，本研究在浙江省内对按交通发达程度选择的19个有代表性的地点进行了连续5年的田间调查，通过RAPD-PCR和线粒体CO1测序方法对154个样块中11652头烟粉虱进行生物型鉴定，结果显示，浙江省内至少存在5个烟粉虱遗传型，且具有各自特定的分布区域。

Main conclusion of this study is the simulation model of growth and dry matter accumulation of pepper under different water irrigation quartity, for maximum index is 100%, 90%, 80%, 70%, and minimum index is 60%. Under this theme, through systematic summarization of the achieved research result and current status related to crop growth and development model.

本试验主要研究上限100％、90％、80％、70％，下限统一为60％田间持水量这样四个不同水分条件下辣椒生长发育及干物质积累的模拟模型，在此主体下，系统地总结和分析了国内外有关作物生长发育模型的研究成果、发展现状，尤其对设施园艺作物模型的建模原理、研究方法以及模型的应用等关键问题进行了初步探讨。

In order to investigate the effects of free air CO2 enrichment on rice and wheat canopy energy balance and water use efficiency, filed experiments were carried out from 2002 to 2005 using the FACE system in Jiangsu province for rice and wheat canopy micrometeorology observations.

为研究大气CO2浓度增高对水稻和小麦冠层能量平衡和水分利用率的影响，本项目利用建立在江苏的我国唯一的FACE系统为试验研究平台，以作物冠层能量平衡理论为基础，将冠层小气候田间试验与理论分析相结合，定量分析了FACE条件下水稻和小麦冠层能量平衡各分量的变化特征。

Penning de Vries's modelling methodology and fundamental frame of L1D and TIL modules of MACROS,a dynamic simulation model of quality indexes in rice population suitable to local soil,climate and other varietal characters was conducted according through field trials and documental data.

Penning de Vries的建模思想和MACROS中L1D、TIL的基本框架，通过田间试验和文献资料的收集，组建了适合本地土壤条件、气候状况和品种特性的水稻群体质量指标动态模拟模型。

Therefore, physio-chemical measurements in the laboratory were synthesized with the field observations to use stress-resistant index to sequence and cluster. Among the 20 Kentucky bluegrass varieties, 2 have strong stress resistance, 15 are medium, and 3 are low.

为此，将实验室测试的生理生化指标与田间观察结果加以综合，用杭逆性指数进行排序和分类。20个草地早熟禾品种中，抗逆性强的有2个，中等的15个，差的3个。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。