查询词典 exudates

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。

The results showed that the apolar fraction of the root exudates from the highly resistant cultivars could kill the pathogen. Those of the general resistant cultivars could inhibit the spore germination and hyphal growth,while the sensitive cultivars couldn't.

荧光显微镜观察结果表明：高抗枯萎病的品种根系分泌物的有机成分对病原菌孢子有致死作用，中抗品种的对病原菌孢子萌发、菌丝的生长有显著抑制作用，相反感病品种的根系分泌物则能够起促进作用。

However,the onion exudates of soaking 2.5 and 5 hours had significantinhibition effect on both zoospore germination and appressorium formation.

浸泡2.5和5小时的洋葱浸出液对游动孢子萌发和附着胞形成均有抑制作用。

The effect of cucumber root exudates on Fusarium oxysporum growth .

黄瓜根系分泌物对枯萎病菌菌丝生长的影响。

But systematic research concerning continuous mono-cropping grafted cucumber obstacle isn't reported. This paper systematically studied the effect of continuous cropping soil on grafted cucumber in aspect of its growth, yield and edaphon in pot experiments. Further more, root exudates of squash and grafted cucumber were collected by solution cultivate and adsorption of XAD-4 resins, and bioassay of the root exudates was did with cucumber and squash as receptors, studied allelopathy of grafted cucumber and squash root exudates on cucumber and squash , physiobiochemistry as well as.

本项研究采用盆栽试验以不同连作年限的土壤为基质比较系统地研究了连作年限对嫁接黄瓜的生长、产量和土壤微生物的影响；采用水培和XAD-4树脂吸附法分别收集嫁接黄瓜和砧木南瓜的根系分泌物并以黄瓜、南瓜为受体进行生物活性测定，并对嫁接黄瓜及其砧木南瓜根系分泌物化感作用的生理机制进行了初步探索。

It is essential to study the chemical components of rubber tree root exudates for root exudates research.

因此，分析研究橡胶树根系分泌物的物质组分，对于开展橡胶树的根际营养过程的研究、合理施肥具有重要意义，也具有重要的生态学意义。

In view of the density and exudates content of glandular trichome depending on different developmental stages in flue-cured tobacco, the density and exudates of glandular trichome on leaves of flue-cured tobacco K326 with different stalk positions were investigated with wide visual microscope and GC/MS.

针对烟叶腺毛及其分泌物含量受烟株发育阶段的影响，采用广视野显微镜和GC/MS，分析研究了烤烟K326品种不同部位成熟叶片腺毛密度及其分泌物的变化情况。

Results showed that there were serous-fibrinous or fibrinous exudates covered on the heart, liver and also be found in the air sacs in one to three days after infection, and there were continued till the end of the experiment In the course of the disease, some infectious ducklings would occur bronchopneumonia, fibrinous meningitis as well as fibrinous exudates covered the intestines and spleen.

结果表明，鸭在感染后1～3天就开始出现浆液-纤维素性或纤维素性心包炎、肝周炎和气囊炎，并且这些病变在整个病理过程中都能看到；另外，部分病例还有支气管肺炎、纤维素性脑膜脑炎、肠道和脾脏表面有纤维素性渗出物等病理变化。

Bidentis were studied by adopting indoor bioassay. The results showed that the volatile matter of F. bidentis had not allelopathy to four receptor plants. The eluviated matter inhibited seedling growth of cotton obviously, the inhibition ratio of root and stem were 6.29% and 10.42% respectively. The aqueous extract of litterfall and root exudates had different inhibition to four receptor plants, The synthesis effectof all treatments was significantly greater than eluviated matter treatment except for B3 of the aqueous extract of root exudates, such as the synthesis effect of all treatments (A1, A2, A3, B1, B2, B3 and eluviation) were 44.74, 29.37, 14.5, 31.54, 16.52, 3.55, 1.48 respectively.

结果显示：黄顶菊自然挥发物对受体植物不表现化感作用；黄顶菊淋溶物对棉花幼苗生长表现出明显的抑制作用，对棉花幼苗高度和根长的抑制率分别为6.29%和10.42%；黄顶菊枯落物浸提液和根系分泌物浸提液对4种受体植物均表现出不同程度的抑制作用，除了黄顶菊根系分泌物浸提液 B3处理外，其它处理的综合效应均显著大于淋溶物处理，如黄顶菊枯落物浸提液（ A1、 A2、 A3）、根系分泌物浸提液（ B1、 B2、 B3）以及淋溶物等各处理对受体植物的综合效应分别为44.74、29.37、14.5、31.54、16.52、3.55、1.48。

And the focul points were put on the research on interaction of root exudates and rhizosphere microorganisms,root exudates and rhizosphere effect,rhizosphere microorganisms and quality of forest soil.

林木根际是指受林木根系分泌物直接影响最强烈，在理化性质和生物学特

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。