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Under field continuous drought stress, growth rate, branches of stolon, leaf lengthobviously declined, nevertheless, leaf water content increased and MDA content decreasedsignificantly during field water deficit. SOD activity of the four turf grasses increased at thebeginning of water deficit and then decreased with drought stress. POD activity ofAugustinegrass increased rapidly and then kept stable with water deficit, however, PODactivity of Centipedegrass changed indistinctively.

田间持续干旱下，随干旱时间的延长，钝叶草和假俭草匍匐主茎的生长速率、主茎分枝数以及叶片长度显著(P＜0.05)下降；叶片含水量呈上升趋势；叶片MDA含量呈下降趋势(P＜0.05)；叶片SOD活性总体上呈先上升后下降趋势，但德阳假俭草和宫崎钝叶草峰值出现较早；钝叶草叶片POD活性先上升(P＜0.05)后趋于稳定，而假俭草叶片POD活性变化不显著；四个草坪草叶片CAT活性先下降(P＜0.05)后趋于稳定。

Five days after spraying Nicosulfuron in Ieaf, POD activity of the tolerant variety was higher than antithese obviously,the sensitive corn's POD activity was continuously decreased.

叶面喷施烟嘧磺隆后，耐性玉米的POD活性在处理后第5d明显高于对照，而敏感品种则持续降低。

During the early uninucleate stage, the POD activity on area A、area B and area C with CHAs of treatment 2、3 was obviousely lower than the control. But in these areas POD activity with CHAs of treatment 4、5 was obviousely higher than the control.

在单核早期，处理2和3的A、B和C区POD 同工酶活性均明显低于对照；处理4和5上述各区POD同工酶活性却明显高于对照。

Colorimetry for POD activity and polypropylene amic gel electrophoresis for isoenzyme were used.

采用比色法测POD酶活，用聚丙烯酰胺凝胶电泳进行POD同工酶的比较。

According to the browning phenomenon of Castanea mollissima in plant tissue culture and the activity of the peroxidase and polyphenolic oxidase, the results of my study indicated that the activity of PPO has relativity with the browning of the callus, that is the higher activity of enzyme,the more severity of browning.But POD was not as PPO.

本文对褐变的机理进行初步研究，分别统计和测定培养期间褐变率、PPO活性、POD活性，研究培养过程中酶的活性变化与外植体褐变的关系，结果表明：板栗组织培养过程中，PPO活性与褐变存在显著的相关关系，PPO活性高的处理其褐变率也较高，POD活性与褐变之间无相关性。

And Cynodon dactylon reached to peak, which were 2.88 and 2.87 times of 4 h treatment respectively; but after 24 h treatment, activities of SOD of Cynodon dactylon had lower speed. The activities of POD have the same trend to activities of SOD.

POD活性的变化规律与SOD活性相同，黑麦草和狗牙根的POD活性同样在5℃处理20h时达到峰值，峰值后的POD活性减少率同样是狗牙根明显大于黑麦草。

The results showed that there were prominently positive correlations between rates radioactivity of SOD and POD and a good minus correlation between rates radioactivity of SOD and PPO. With irradiated by 60Co-γ ray of 10GY, rates radioactivity of SOD and POD were highest, and rate radioactivity of PPO was secondary, and rate radioactivity of CAT and the content of malondialdehyde were eighthly.

结果表明，SOD酶活力与POD酶活力之间呈显著正相关R=0.656(上标*，SOD比活力与PPO酶活力、PPO比活力之间呈极显著负相关R=-0.716(上标*， R=-0.714；SOD酶活力、POD酶活力以10GY辐射处理值最高，10GY辐射处理的PPO酶活力居第2，丙二醛含量及CAT酶活力居第8。

After treatment with chlorfluazuron to the larvae, the activities of POD in the larvae of three instars were all higher than the control, while the activities of POD in the second and third instar were only 65.0% and 99.2% of those in the control.

抑太保处理后，过氧化物酶活力除2龄幼虫在处理后5 h下降，仅为对照的65.0%，3龄幼虫在处理后1 h为对照的99.2%外，3个虫龄幼虫的POD活力均高于对照。H2O2由0增加至0.1 mL，POD活力呈线性关系上升。

12 kinds of pepper materials were used for experiment of POD isozymes electrophoresis .Different concentrations of gel were chosen. And the genetic relationship of 12 pepper materials was identified using POD isozymes.

方法］以12个辣椒材料为试材，进行POD同工酶电泳，对不同浓度分离胶进行选择，并应用POD同工酶对12个辣椒材料，进行亲缘关系的鉴定。

The results showed that as low temperature became intensified and prolonged, the leaves of pepper seedling presented increased POD activity, decreaseds SOD and CAT activities, increased MDA content and increased plasm-membrane permeability; the critical temperature (15℃/8℃) showed stronger effects on pepper plants than the lower temperature (19℃/12℃); under the lower temperature, the weak light of 90μmolm^(-2)s(-1) could make the POD activity increase much more, but reduce the decrements of the SOD and CAT activities, and the increments of the MDA content and plasm-membrane permeability, and under the critical temperature (15℃/8℃), an opposite situation occurred.

结果表明：随着低温弱光胁迫程度和时间的增加，辣椒幼苗叶片中POD活性提高，但SOD和CAT活性下降，MDA含量增加，细胞膜透性增大；就温度而言，临界低温(15℃/8℃)比偏低温(19℃/12℃)对植株的影响更为显著；在偏低温(19℃/12℃)下，弱光90μmolm^(-2)s(-1)使POD活性上升更大，而SOD和CAT活性的下降、MDA含量的增加和细胞膜透性的增大更小，而在临界低温(15℃/8℃)下则相反；陇椒2号耐低温弱光能力强，各项指标均优于七寸红。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。