品种

Conclusionthe significant difference of pod zymograms among rugosa rose varieties in shandong can be used as a foundation, which will provide information for normalized cultivation.

结论山东产玫瑰花各品种过氧化物酶同工酶的谱型较多，品种之间有较明显的差异，可作为玫瑰花栽培品种鉴别的依据，为玫瑰花的规范化栽培提供了资料。

The above facts indicated that silicon accumulation in the rice leaf sheath inside, the leaf surface and the sclerenchymatous cell, played the physical barrier role, delayed the hypha of sheath blight expansion.5、Analysing the physiological and biochemical mechanism of the resistance to rice sheath blight improved by silicon application in several respects.(1) After being inoculated with R.solani, O2 and POD activities disordered, CAT activities obviously declined. O2 producingvelocity in 91SP\'s leaves and leaf sheaths of Si+ rice plants were lower than those of Siriceplants, MDA content in leaves and leaf sheaths of Si+ rice plants were lower thanthose of Si- rice plants significantly in three days after inoculating, SOD、POD、CATactivities in leaf sheaths of Si+ rice plants were higher than those of Si- rice plantssignificantly in one day after inoculating, SOD、POD、CAT activities in leaves ofSi-treatment were higher than those of Si- rice plants significantly in three days afterinoculating. O2 producing velocity and MDA content in Lemont\'s leaves and leafsheaths of Si+ rice plants were lower than those of Si- rice plants significantly afterinoculating, and SOD、POD、CAT activities of Si+ rice plants were higher than those ofSi- rice plants significantly.

说明硅在水稻叶鞘内侧、叶表和厚壁细胞积累，起到了物理屏障的作用，延缓了纹枯病菌的扩展。5、阐明了施硅增强水稻抗纹枯病的生理生化机制(1)接种纹枯病菌后，两个水稻品种91SP和Lemont的叶鞘和叶片超氧阴离子自由基O2性紊乱，CAT活性明显下降；抗病品种91SP叶鞘和叶片施硅处理的O2产生速率小于缺硅处理，叶鞘和叶片MDA含量在接种第3 d后显著低于缺硅处理，叶鞘SOD、POD、CAT活性在接种1 d后一直显著高于缺硅处理，叶片SOD、POD、CAT活性在接种3 d后显著高于缺硅处理；感病品种Lemont叶鞘和叶片施硅处理的O2产生速率、MDA含量始终显著小于缺硅处理，SOD、POD、CAT活性始终显著大于缺硅处理。

Black-bone chicken is a unique domestic chicken breed in China, and the Silkie has been admitted as an International Standard Bree...

乌骨鸡是我国独特的家禽品种，丝羽乌骨鸡更以其特有的外貌特征而名列国际标准品种之一，国内长期以来都将乌骨鸡视为药用品种。

Black-bone chicken is a unique domestic chicken breed in China, and the Silkie has been admitted as an International Standard Breeds because of its unique appearance. Chinese regard Black-bone chicken as an officinal chicken breed for long term.

乌骨鸡是我国独特的家禽品种，丝羽乌骨鸡更以其特有的外貌特征而名列国际标准品种之一，国内长期以来都将乌骨鸡视为药用品种。

All of the 58 restriction endonucleases were used to investigate the mtDNA diversity. Four restriction endonucleases, DraⅠ、SnaBⅠ、SspⅠ and Vsp Ⅰ, were polymorphic. Based on presence or absence of the the 215〓 SspⅠ site, all of the 13 mtDNA sequences were divided into two groups.

利用DNAClub软件对AT富集区和tRNA〓基因的DNA序列进行了模拟酶切，所有的58种内切酶中有10种内切酶在13个材料中有酶切位点，仅4种酶DraⅠ、SnaBⅠ、SspⅠ和VspⅠ表现出多态性，且主要位点差异在于SspⅠ酶切位点的有无（序列的第215位的C/T）。12个品种中有4个品种（豫早1号、豫早2号、鲁红、33）没有此酶切位点，另外8个品种有此酶切位点，野柞蚕也没有此酶切位点。

In this research, the spectra of five typical varieties of yogurt were measured by a spectroradiometer. Then clustering analysis was made using principle component analysis. Artificial neural network with principle components as input was used to establish discrimination model.

研究中，采用光谱仪获得5种典型酸奶品种的光谱曲线，然后用主成分分析法对5种酸奶品种进行聚类分析，再结合人工神经网络技术建立模型进行品种鉴别。

Moreover, the decline of contents of soluble protein and root vigor in roots of rice cultivars was alleviated by exogenous spermidine treatment.

这表明，外源亚精胺可缓解盐胁迫对两品种水稻根系的伤害，并且对盐敏感品种Peta的缓解作用大于耐盐品种Pokkali。

The leaf area, single leaf fresh weight, flavone content and lactone content in good variety were 2.04, 2.71, 2.05 and 2.17 times of those in common variety respectively. There were no obvious difference between the female and staminiferous plants in leaf output character, flavone content and lactone content, which proved that there were hereditary change among the gingko variety in leaf output character, flavone content and lactune content.

较好品种的叶面积、叶重、叶黄酮、内酯含量分别是较弱品种的2.04、2.71、2.05和2.17倍；雌雄株间叶产量性状、黄酮含量、内酯含量无差异，证明银杏品种或类型间叶产量性状、黄酮、内酯含量均存在遗传变异，这种变异与雌雄株无关。

It was shown that the root elongation was inhibited and the malonaldehyde content in root apices and the antioxidase activities of root apices were increased under Al stress (30 μmol/L), while the effects of Al were significantly alleviated by the addition of Si (1.4 mmol/L). Moreover, both Si added before Al treatment and Si added simultaneously with Al treatment could alleviate these effects. On the other hand, the cultivar of Seca was shown to be more sensitive to Al than other cultivars in the absent of Si, while Al-resistance distinction among the cultivars of stylosanthes turned to be non-significant in the present of Si in the pre-cultured solution or both pre-cultured and Al-treatment solutions.

研究结果表明，在铝(30 μmol/L)胁迫条件下柱花草根伸长受阻、根尖丙二醛含量和抗氧化酶活性显著增加，而硅(1.4 mmol/L)处理增加根中硅的含量而降低了铝对根伸长、MDA含量和抗氧化酶活性的影响，且铝处理前12h供给的硅和前处理溶液及铝溶液中均加硅处理的影响均显著；在不加硅条件下西卡品种的耐铝性显著低于其它品种，而经硅预处理的植株和在预处理及铝处理期间均供应硅的植株的耐铝性不同品种间的差异不显著。

ISSR markers were used to study the genetic relationship and investigate the genetic diversity and genetic structure for providing a theoretical basis and technical support for appropriate conservation and application of existing genetic resources of Tagetes.

通过ISSR分子标记研究品种资源遗传关系，探讨其种群遗传多样性水平和遗传结构，为了解品种间遗传多样性、品种间亲缘关系、育种及科学合理保存和利用现有万寿菊属种质资源提供理论依据和技术支持。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐