Fromthe point of view of chemical components,α-cellulose content for differentage-degrees bamboo is mostly the same,slightly increasing with the growth ofage,lignin content increases with the growth of age,the contents of extract,hemicellulose,polysaccharose,mineral elememts decrease with the growth ofage;the result shows the electric conductivity of bamboo is mainly decided bythe content of mineral elements,with the growth of age,volume resistivitybecomes great.pH value shows acid,acidity decreases with the growth of age,this is mainly due to the decrease of fraction of bamboo parenchyma with thegrowth of age.

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And found root exudates have the promotable effect on the activity of IAAoxidase of cucumber and squash,.

在對(duì)其生理生化特性的研究中發(fā)現(xiàn)，根系分泌物顯著的促進(jìn)黃瓜和南瓜體內(nèi)吲哚乙酸氧化酶的活性熟女口爆，從而降低其體內(nèi)吲哚乙酸的水平精品国产精品网麻豆系列，抑制其生長(zhǎng)發(fā)育；根系分泌物還顯著抑制受體淀粉酶的活性永久黄网免费视频，這種抑制性隨濃度升高而增加欧美精品黄色视频，通過(guò)影響黃瓜和南瓜體內(nèi)的能量轉(zhuǎn)化來(lái)影響其正常生長(zhǎng)。

In this paper, the pyrogallic method is adopted.

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Schizophyllum commune AS 5.391 can produce CDH and the CDH production is induced by cellulosic substrates. Cotton is the best inducer for CDH production.The lignin model compound veratryl alcohlo has no effect on CDH production.

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On the whole, these parameters reflected the distributions of the conjugates in tumor, kidney and liver.

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For example, male-male copulations in locusts can be costly for the mounted male, and this cost may in turn increase selection pressure for males' tendency to release a chemical called panacetylnitrile, which dissuades other males from mounting them, said Bailey.

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"For example, male-male copulations in locusts can be costly for the mounted male, and this cost may in turn increase selection pressure for males' tendency to release a chemical called panacetylnitrile, which dissuades other males from mounting them," said Bailey.

貝利說(shuō)：舉例來(lái)說(shuō)91福利在线精品国产，雄性蟬之間的交媾對(duì)下位的雄性蟬來(lái)說(shuō)代價(jià)沉重，而這種代價(jià)可能反過(guò)來(lái)增加了選擇壓力精品91，促使雄性蟬傾向于釋放一種稱為 panacetylnitrile 的化學(xué)物在线国产观看，這種化學(xué)物會(huì)阻止其他雄性蟬爬到自己身上進(jìn)行交媾狠狠亚洲超碰狼人久久老人。

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In Gravitarmata margarotana oviposition selection period, the total contents of volatiles in healthy needle branches were higher than healthy cone branches, and the total contents of volatiles in red cone tree were lower than green cone tree.

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Two dominate variation trends are distinguished in the data plots of compressional-wave velocity versus Possion ratio, indicating the effects of mud content and calcite cement on the elastic properties of sandstone samples. In each change trend, with the rock texture transfering gradually from grain-supporting to matrix-supporting with increasing mud and calcite cement content, the propagation of elastic wave also changed from grain-to-grain contacts to rock matrix, which resulted in the measured data illustrating extremely different tendency. It helps utilize the physics properties of reservoir sandstone to extract rock texture and diagenesis properties in the research area.

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