盆栽植物

One-year-old seedlings of five native species including Dolichandrone cauda-felina, Syzygium jambos, Melastoma candidum, Pterospermum heterophyllu, and Schefflera octophylla were planted in pot containers and acclimated under partially shaded regime for 4 weeks. And further, seedlings of each species were divided into two groups with equivalent individuals for each group, which were exposed to the clean and the polluted site, respectively. After five months, dimensional growth parameters and dry mass allocation were measured and analysed to study the differences in response of these subtropical woody species to atmospheric pollution.

将乡土木本植物猫尾木Dolichandrone cauda-felina蒲桃Syzygium jambos、野牡丹Melastoma candidum、翻白叶树Pterospermum heterophyllum以及鸭脚木Schefflera ctophylla 1年生袋装苗盆栽，置半庇荫环境下适应4周，之后按株数均等分成两组，分别放置在南海五星污染区和广州华南植物园清洁区进行试验。5个月后进行植物构形生长参数和干物质量的测定，以探讨这5种亚热带树苗对大气污染响应的差异。

MethodIn the pot test, 4 kinds of wild halophytes (Melilotus suaveolens L, Limonium bicolor K., Salsola collina P.and Artemisia argyi L.) were cultivated in 3 kinds of salt and alkali soils selected from the wastelands of Dagong district, Jixian county and Xiqing of Tianjin city for salt tolerance stress treatments and their physiological indexed such as proline, MAD and soluble sugar content was determined.

方法］土壤为采自天津市大港区、蓟县、西青荒地的3种盐碱土，采用盆栽试验对4种盐生植物（草木樨、猪毛菜、艾蒿和补血草）进行耐盐胁迫试验，测定其耐盐指标（游离脯氨酸、丙二醛和可溶性糖含量）。

Effect of limestone application on the content of available heavy meatal in soil before planting vegetables

通过盆栽试验，研究了石灰对污染土壤中Hg、Cd、Pb活性的影响及其在植物体内的积累效应。

There was a significant correlation between soil easily mineralizable nitrogen and microbial biomass nitrogen measured before planting with the net nitrogen mineralization and plant nitrogen uptake.

通过盆栽试验研究了土壤易矿化有机态氮和土壤微生物态氮与土壤净矿化氮及植物吸氮量之间的关系。

When initial NO3--N was leached, the correlation coefficients between soil initial NO3--N and mineral N extracted by CaCl2 before aerobic incubation with raygrass nitrogen uptake were decreased to 0.613 and 0.607, respectively, and both reached 5% significantly level. However, the correlation coefficients between mineralizable N extracted by aerobic incubation, soil initial mineral N and mineralizable N extracted by aerobic incubation, N0 and soil initial mineral N and N0 with raygrass nitrogen uptake were raised obviously, and all reached 5% and 1% significant level.

以不包括土壤起始NO3--N盆栽试验植物吸氮量为参比，通气培养前CaCl2淋洗起始NO3--N和起始矿质氮与五期黑麦草地上部氮素累积量间的相关性尽管有所降低，但相关性仍达5%显著水平，相关系数分别为0.613和0.607；而通气培养30周矿化氮素、土壤起始矿质氮+通气培养30周矿化氮素、N0及N0+起始矿质氮与五期黑麦草地上部吸氮量的相关系数却明显提高，相关系数分别为0.718，0.782，0.688 和0.640，均达5%或1%显著水平。

The results indicated that when initial NO3--N was not leached, soil initial NO3--N and mineral N extracted by CaCl2 before aerobic incubation were closely related with raygrass nitrogen uptake, the correlation coefficients were 0.856 and 0.862, respectively, both reached at 1% significant level. When initial NO3--N was leached, it was no good relationship between mineralizable N extracted by aerobic incubation, soil initial mineral N and mineralizable N extracted by aerobic incubation, N0 and soil initial mineral N and N0 with raygrass nitrogrn uptake, the correlation coefficients were 0.410, 0.553, 0.492 and 0.419, respectively, indicating that the poor effects of mineralizable N on reflecting soil N capacity were influenced and disturbed by initial nitrate.

以包括土壤起始NO3--N盆栽试验植物吸氮量为参比，通气培养前CaCl2所淋洗起始NO3--N和起始矿质氮与5期黑麦草地上部氮素累积量密切相关，相关系数分别为0.856和0.862，达1%显著水平；与此相反，通气培养30周所矿化氮素、土壤起始矿质氮+通气培养30周矿化氮素、氮素矿化势(N0)及N0+起始矿质氮与5期黑麦草地上部氮素累积量间无显著相关关系，相关系数分别仅为0.410、0.553、0.492和0.419。

The results showed that the complex function of the elements in the soil influenced the growth of pakchoi .

采用小白菜盆栽试验，研究了植物对土壤中重金属Cd、Pb、Cu的吸收效应。

A greenhouse study was conducted to learn the effect of introduced or indigenous mycorrhizae species on the growth and phosphorus uptake of Pennisetum flaccidum ,which was a sand fixation plant on the grassland of the Tibetan plateau.

采用盆栽方法，就外源菌种、土著菌种对固沙植物白草( Pennisetum.flaccidum )生长和吸磷效率的影响进行了研究。

Twenty-eight prototrophic revertants of the tryptophan auxotrophs were obtained through spotaneous back mutation from colonies grown on synthetic medium plates or nodules of plants. Most of the revertants have resumed the nodulation abilities and enhanced nitrogen fixation activities as evidenced by darker green color, higher dry weight and more nitrogen contents in shoot than those of the wild type strain 8-1-4A did in pot experiments. However, noodulation abilities decreased to some extent and no significant differences were found in the mass of nodules compared with the parent strain.

通过自发回复突变，从培养平板和根瘤中分离到28个色氨酸原养回复突变型菌株，对其中25株进行植物盆栽试验证明其中24株菌的结瘤功能得到了恢复，而且固氮酶活性普遍比出发菌有所提高，其中41％达到极显著水平，18％达到显著水平，植株地上部分干重及含氮量也有不同程度的提高，唯有根瘤数比出发菌有所降低，其中23％降低达极显著水平，11％降低达显著水平。

Rorippa globosa has been identified as a new Cd-hyperaccumulating plant species.

采用室外盆栽模拟方法，比较和分析了镉-砷复合污染处理对球果蔊菜(Rorippa globosa，十字花科焊菜属，1种从农田杂草中新发现的镉超富集植物)的生长及其对Cd、As吸收和积累特征的影响。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。