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In order to ascertain the allelopathy activity of Trifolium repens on weeds, the allelopathic effect of aqueous extract from the aerial part and root of T. repens under different concentrations on the germination rate, physiological and biochemical mechanism of germinating seeds of Abutilon theophrasti Medic.

为进一步明确白三叶草对杂草的化感作用，研究了不同浓度的白三叶草地上部分水浸液和根部水浸液对苘麻和稗草种子发芽率和种子萌发过程中生理生化机理的影响。

In order to ascertain the allelopathy of T.repens on weeds, the allelopathic effect of aqueous extract from the aerial part and root of T. repens. with different concentrations on the germination rate, physiological and biochemical mechanism of germinating seeds of Abutilon theophrasti Medic.

为进一步明确白三叶草对杂草的化感作用，研究了不同浓度的白三叶草地上部分水浸液、根系分泌物、挥发物对苘麻和稗草种子发芽率和杂草幼苗生长过程中生理生化机理的影响。

Their structures were confirmed by elemental analysis, 1H NMR, and IR spectral data. The preliminary bioassay results showed that α-phenyl-sul-fonylcyclododecanone oxime 2,4-dichlorophenoxy acetate (8p) had inhibition ratio 100% and 80.07% against Digitaria sanguinalis Scop., and 100% and 88.70% against Abutilon theophrasti Medic. at concentrations of 100 and 1 mg/L.

初步生物活性测定结果显示，部分化合物具有一定的除草活性，如α-苯磺酰基环十二酮肟-2，4-二氯苯氧乙酸酯(8p)在浓度为100和1 mg/L时对马唐的抑制率分别为100%和80.07%；对苘麻的抑制率分别为100%和88.70%。

The research result as follows. 1. The allelopathic effects of aqueous extract, volatile oil and root exudates of White clover (Trifolium repens L.) were studied on four crops: Abutilon theophrasti Medic., Echinochloa crusgalli L.

研究结果如下： 1、以稗草、反枝苋、苘麻和白三叶草自身为受体，对白三叶草地上部分水浸液、挥发物和根系分泌物的化感作用进行生物测定。

Preliminary bioassay showed that most of title compounds had good herbicidal activity, for example, 9a, 9b, 9c, 9f, 9g and 9h exhibited more than 90% inhibition aganist dicotyledon weeds, such as Abutilon theophrasti Medic and Amaranthus spinosus at an active ingredient 75 g/hm2 in post-emergence treatment.

初步生物活性测定结果表明，该类化合物具有一定的除草活性，如9a， 9b， 9c， 9f， 9g和9h在有效成分75 g/hm2剂量下，茎叶处理对苘麻、刺苋等双子叶杂草的抑制率达90%以上。

The selective response of three chafers to different plant leaves The number of beetles caught by castor-oil plant leaves were obviously more than that of control filter paper, cotton, sweet potato, soybean, Abutilon theophrasti Medic, peanut and elm leaves.

铜绿丽金龟和暗黑鳃金龟对花生、榆树、大豆的取食量都比较大。该结果说明，金龟甲对蓖麻的趋向行为可能不是为了取食或者说不单单为了取食，是否具有引诱其交配、产卵、栖息等行为，都是疑点，需要进一步研究。

There were obviously more chafers near the castor-oil plant than soybean, cotton, sweet potato, peanut, elm, Abutilon theophrasti Medic, there was significant difference between them.

华北大黑鳃金龟对不同植物挥发性物质的选择反应(1)采用水蒸气蒸馏法，二氯甲烷萃取，提取植物叶片的挥发性物质，无论对雌虫还是雄虫，蓖麻叶粗提物的诱虫活性均显著高于棉花、苘麻叶片粗提物。

The selective response of Holotrichia oblita to different plant volatiles (1) By steam distillation and dichloromethane, in the Y-tube olfactometer bioassay, the crude extract from castor-oil plant leaves was obviously attractive to female and male of Holotrichia oblita than cotton, Abutilon theophrasti Medic, control dichloromethane.

该结果表明，蓖麻叶片粗提物中含有引诱华北大黑鳃金龟的化学物质。(2)华北大黑鳃金龟成虫对8种化合物的嗅觉仪行为反应结果表明，无论对雌虫还是雄虫，肉桂醛、邻苯二甲酸二丁酯、苯酚、香草醛、苯甲醛的诱虫活性显著高于顺-3-己烯醇。

The Medic-Disk would be a good addition to our product range.

病理磁盘会成为我们产品范围的一个很好的追加。

In the shorter race, world sprint champion Absolute Champion was to defend his title against up-and-coming upstarts Sacred Kingdom and Medic Power, both of whom were likely to start race favorites .

在1200米比赛中，世界疾跑赛马冠军将迎战大有潜力的后起之星 Sacred Kingdom 和 Medic Power ，，他们三人成为最有希望夺冠的热门选手。

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