品种

There were different leaves structure between resistant and susceptible cultivars, the leaves structure studied included thickness of leaves, No.of palisade tissue, density of palisade tissue, thickness of the first line palisade cell, thickness of the second line palisade cell, density of inter-epidermal cell and density of exter-epidermal cell.

对大豆灰斑病抗病品种和感病品种的叶片组织结构，主要包括栅栏组织层数、栅栏组织密度、上下表皮细胞密度、蜡质含量及叶比重等，进行了比较研究。

This part is mainly about how to build the database of the cotton expert system and the variety parameter calibration.

对系统的校正主要是对品种参数的校正：包括品种文件建立的方法和参数的调整方法。

Nevertheless, there exist many problems in the traditional production of seedless fruit, such as there are few cultivars of natural parthenocarpy, difficulties in the breeding of tretraploid plants etc.

传统无籽果实生产方法存在着诸如单性结实品种少、外用激素施用量不易掌握及四倍体品种较难获得等一系列问题。

The results showed that the PCR fragment length of root-knot samples was 768bp in cowpea(RKN-1), tomato(RKN-2), balsam pear(RKN-3), Astragalus adsurgens (RKN-19)and rose(RKN-4) from Beijing, peanut fromWeifang (RKN-7) Yantai(RKN-6) and Jiaozhou(RKN-5) in Shandong, tomato from Hexian(RKN-9), cucumber from Suzhou (RKN-8) and Platycodon grandiflorum from Taihe(RKN-11) in Anhui and two kinds of tomato species(RKN-22,23) from China Central Agricultural University; the PCR fragment length of root-knot samples was 769bp in balsam pear from Ganyu(RKN-10) in Jiangsu, tomato from Kunming(RKN-12) in Yunnan, Langfang (RKN-17)in Hebei, Chengdu(RKN-18) in Sichuan and Suzhou(RKN-21) in Anhui and cucumber from Sixian(RKN-20) in Anhui; the PCR fragment length of root-knot samples was 772bp in guava(RKN-13) and pawpaw (RKN-15) from Hainan; the PCR fragment length of the other two samples was both 766bp in tomato(RKN-24,25) from China Central Agricultural University, and the PCR fragment length of root-knot nematodes in cucumber from Hangzhou in Zhejiang(RKN-16) and pepper from Anding (RKN-14)in Hainan was 767bp and 869bp, respectively.

结果表明，北京密云的豇豆、番茄、苦瓜，北京植保站月季，山东胶州，烟台和潍坊的花生，安徽和县的番茄，宿州的黄瓜和太和的桔梗，北京畜牧所沙打旺以及中国农业大学两个番茄品种(RKN-23和RKN-25)上的根结线虫种群的PCR扩增片段长度为768bp；江苏赣榆苦瓜，云南昆明，河北廊坊，安徽宿州和四川成都番茄以及安徽泅县黄瓜上根结线虫种群的PCR扩增片段长度为769bp；海南安定木瓜和石榴上根结线虫种群的PCR扩增长片段度为772bp；中国农业大学另外两个番茄(RKN22和RKN-24)品种上的根结线虫种群的PCR扩增片段长度为766bp；而浙江杭州黄瓜和海南安定胡椒上的根结线虫种群的PCR扩增长度分别为767bp和869bp。

However, early sowing could improve unit area dry matter accumulation of Yannong 2, this effect on Green pea is not significant.

豌豆提前播种，可以增加低产品种的单位面积千物质积累量，但对高产品种的影响不显著。

The results of this study could help the practice of the optimization of culturing methods and ways, and the application of the improved seed in pearl oyster.

该研究结果将为珍珠贝优良品种养殖技术的优化和品种推广体系的建立提供指导。

Sensitive varieties apprently respire mainly by the glycolysis pathway whereas resistant varieties depend more on the pentose phosphate pathway .

显然敏感品种的呼吸主要通过糖酵解途径，而抗性品种比较依赖戊糖磷酸途径。

The result showed that pericarp thickness was significantly different among different varieties and among different days after pollination.

结果表明，不同品种和不同授粉天数的果皮厚度差异明显；同一品种籽粒内不同部位间的果皮厚度也有较大差异，这种差异在灌浆前期更为明显，主要表现为胚背面的果皮较胚面薄，之后这种差异逐渐缩小。

This breed is best suited for those with pervious experience with large dog breeds, and those which are more assertive.

这品种是最适合那些与透水经验与大狗的品种，以及那些是更加自信。

Two processing tomato, TM 103 and peto 86, were treated with different rates of ethephon 16 days and 21 days before the first harvest.

两品种加工番茄TM 103及Peto 86於采收前施用不同浓度之益收生长素，两品种分别於处理后16天及21天进行第一次采收。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。