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Inoculating resistant and susceptible cultivars with Guignardia camelliae, the POD, PPO, CAT, PAL activities in the annual leaf cell increase rapidly. And the increment of POD, PPO, PAL activities in resistant cultivars were higher than susceptible cultivars.

自然和人工接种发病后，抗、感病品种体内保护酶(POD、PPO、CAT、PAL)的活性迅速提高，抗病品种增加幅度明显大于感病品种，但 CAT 酶活性变化无显著性差异。

The effects of safener on the growth and ALS activity were also examined. It showed that low concentration of AE F107892 could stimulate the growth of s-18 cultivars, but had little effect on the r-6 cultivars. High concentration of AE F107892 could inhibit the growth of both of the two cultivars.

测定了安全剂对小麦生长及ALS活力、GSH含量和GST活性的影响，结果表明：低浓度安全剂刺激敏18号小麦的生长，对抗6号的影响则较小，高浓度则都抑制了小麦幼苗的生长。

objective:to determine different cultivars of fructus trichosanthis in shandong, and explore their genetic relationships.methods: sds-polyacrylamide gel eletrophoresis was employed to analyze the seed protein of different cultivars and wild plant of fructus trichosanthis from shandong and trichosanthes hubehensis, and the finger-prints were established.results:there were many common bands among different cultivars and wild plant of fructus trichosanthis, but t.

目的：鉴定山东产瓜蒌的不同农家品种，并探讨它们的亲缘关系。方法：利用垂直平板聚丙烯酰胺凝胶电泳技术，对山东产瓜蒌的不同农家品种、野生种及湖北栝楼进行种子蛋白电泳分析，并绘制指纹图谱。结果：山东产瓜蒌不同农家品种和野生种种子的蛋白电泳图谱具有多条共有带，而与湖北栝楼图谱差异显著。

Compare on the cultivars of Zizania caduciflora: Choosing different types cultivars of Zizania caduciflora for different planting situations, the reap time, the yield, the quality of seven cultivars of Zizania caduciflora which are numbered 0501 to 0507 are compared.

不同品种间茭白的差异比较：选用0501～0507号茭白进行品比试验，对采收期、产量、品质等方面进行测定比较，以求选出适宜不同类型栽培的品种。

The ISSR fingerprinting of 18 Japanese plum cultivars and 12 plum species or variety were established by using optimum system with primer 5"-9T-3"and 5"-9C-3", respectively. The identification rate of plum cultivars and species or variety was 100%. The effects of five important components on reaction of SSR were studied with Prunus salicina cv. Meilili. The results showed that the optimum concentration of five important components i.e. Tag DNA polymerase, Mg +, single primer, template DNA and dNTPs in 25 μL reaction system of SSR were 1.5u, 2.0mM, 0.8 μ M, 30~40ng and 0.16~0.24mM, respectively. The dendrograms of these cultivars was contructed according the Jaccard coefficient of similarity.

利用该优化体系，以5′-_9T-3′为引物，构建了中国李18个品种的ISSR指纹图谱，该引物可将这些品种完全区别开来；以5′-_9C-3′为引物，构建了李属6类种质资源的ISSR指纹图谱，该引物区分率为100％。4、中国李品种适宜的SSR反应分析体系是：25μL SSR反应体系中，Taq DNA聚合酶、Mg~(2+)、每个引物、模板DNA和dNTPs等5种成分的适宜浓度分别是：1.5u、2.0mmol·L~(-1)、0.8μmol·L~(-1)、30～40ng和0.16～0.24mmol·L~(-1)。5、采用RAPD、ISSR和SSR等三种分子标记技术对中国李品种资源54份和2个欧洲李品种进行了遗传多样性分析，并以品种间的遗传相似系数构建了Jaccard聚类树状图。

Results of comprehensive evaluation of eight soybean cultivars of different podding habits by the DTOPSIS method revealed that, in areas with abundant sunshine and plentiful, evenly distributed rainfall, the subdeterminate podding cultivars gave fuller play to seed yield potential than the indeterminate podding cultivars.

采用DTOPSIS法对8 个不同结荚习性大豆品种进行综合评估的结果，在光照充足，雨量分布较均匀的地区，亚有限结荚习性品种可能比无限结荚习性品种更能发挥品种自身生产潜力。

Variations among rice cultivars in lead tolerance, uptake and translocation Under the soil treated with 800 mg kg〓 Pb, the effects of Pb on rice growth and development varied greatly with cultivars, with some cultivars significantly promoted, some significantly restrained, and others no obvious change.

五、水稻不同品种对铅吸收、分配的差异在土壤铅浓度为800mg kg〓的条件下，水稻不同品种的生长发育对铅处理的反应差异很大，部分品种受到明显抑制，部分品种受到明显促进，而另一些品种没有明显变化。

The identification of tea plant resistance to tea brown blight The resistance of 13 tea plant cultivars to tea brown blight had the difference or remarkable difference. In general, the resistance of big leaf cultivars was relatively weaker, the resistance of middle leaf cultivars was relatively stronger.

茶树品种抗云纹叶枯病的鉴定 13 个茶树品种对茶云纹叶枯病的抗性存在显著差异，一般大叶种材料的抗性较弱，中叶种材料的抗性较强。

Biological characteristics of the pathogen and the resistance of 13 cultivars of tea plant to tea brown blight were studied by means of natural infection in the field and artificial inoculation in vitro. Resistant cultivars and susceptible cultivars of tea plant were divided. And the resistance mechanism was researched tentatively. The findings are as follows: 1 Some biological characteristics of the pathogenic fungus The experiment result showed: the optimum temperature for the growth of fungus mycelium was from 24 to 27℃, the optimum temperature for sporulation ranged 22 to 30℃. Treated at 54℃ in 10 minutes, the spores didn't germinate. The optimum pH for the growth of the mycelium was 5.1～5.9, the optimum pH for sporulation ranged 5.0～6.0. Light had no much effect on the growth of fungus mycelium, but had much effect on the reproduction of the spore.

首先，研究了茶云纹叶枯病病菌的生物学特性；其次，通过田间抗性调查和室内人工接种鉴定，对 13 个茶树品种进行了抗病性鉴定；第三，在前人研究的基础上，对茶树抗病机理作了更深入的研究，结果发现： 1 病原菌的生物学特性病原菌的分生孢子萌发的最适温度范围为 24～27℃，菌丝生长的最适温度范围为 22～30℃；致死温度为 55℃；菌丝生长的最适 pH 范围为 5.1～5.9，孢子萌发的最适 pH 范围是 5.0～6.0；光照对病菌生长速度及分生孢子萌发影响不大，但对其产孢的影响很大，特别是有光照与无光照处理之间差异显著，光照有利于分生孢子的形成。

The nine tested tea cultivars were categorized into three groups by cluster analysis according to the number of probes per insect, waveform durations, or duration per probe including various waveforms on different tea cultivars. Waveforms S, E and F correlated to the main feeding activity of the leafhoppers and may provide valuable information on predicting the resistance levels of the tea plants to the leaThopper. The resistance level of the nine tea cultivars to the leafhopper was ranked based on the durations of waveform S, E and F, as well as the duration every probe including various waveforms.

以该叶蝉在不同品种茶树上的平均刺探次数和各波形平均持续时间为指标，或者以其在不同品种茶树上含有各波形的单次刺探平均持续时间为指标，分别进行聚类分析，均将9个品种分为3个不同的组。S、E和F波对应着假眼小绿叶蝉在茶树上的主要取食活动，可能与茶树抗假眼小绿叶蝉的取食密切相关。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失