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Secondly, coving ground and buring can effectively postpone the searing and death of broad-leaved evergreen plants overground parts, and make those recover fast in spring.

而地面覆盖和埋土越冬有效地推迟了常绿阔叶植物干枯和地上部分死亡的时间,并且在春天较早进入恢复生长。

This paper gives introduction on measures of Rooting- zone restriction. The theoretical basis (Above and below ground correlation、Local root nutrition、Growth redundancy)、Rooting-zone restriction to the growth and development of plants、Rooting-zone re- striction RZ...

本文介绍了园艺作物限根栽培的措施和理论,依据地上和地下相关性、根系局部营养生长冗余、限根对植株生长发育的影响、限根的生理反应和作用机制以及限根技术的应用等方面探讨了其在蔬菜栽培中的应用。

There were so huge roots and rhizome system under ground that they could absorb water from deep soil; Stems and leaves on ground could decrease water loss. The huge biomes of G.uralensis had strong drought resistance superiority. In the same time, drought stress significantly restrained the growth of G.uralensis. On the contrary, in some extent, drought stress could improve the growth of roots under ground and resulted in increasing the rate of root/shoot; moreover, made the color of velamen become red and enhanced the output and the quality.

主要结论如下:(1)在形态与生长反应方面,观察发现甘草地下和地上两部分都具有适应干早环境的特征,地下有庞大的根和根茎系统,吸水能力很强,地上茎叶形态表现出很强的节水能力,并且甘草群体抗旱优势很强;同时也观测到干旱对甘草地上茎叶生长抑制较为明显,但在一定程度上对地下根系生长起到了促进作用,导致根冠比增大、根皮颜色变红,即在产量和质量方面都有了很大地提高。

Research on individual bamboo biomass and timber physical structure indicated that the allocation of Guadua amplexifolia biomass to branch is higher than moso-bamboo evidently. Root shoot ratio is larger than other sympodial bamboo, so it can be considered as a good breakwind plant because of developed root and branch. Every modularity biomass above ground had significant positive correlation with basal diameter and total height, it can simulated with allometric model. The culm had large relative wall thickness and low moisture content, so it can be cultivated as fine timber-used bamboo.

通过对Guadua amplexifolia现存单株生物量结构和竹材物理结构研究,结果表明:地上部分生物量在枝条上的分配比例高于相同径级毛竹,根冠比较其他丛生竹种大,具有发达的地下根系且易形成密集林分,是良好的防风植物材料;地上部分各器官生物量与地径、全高均呈显著的正相关,可以用相对生长模型进行模拟;竹秆有较大的相对壁厚和较低的含水率,可以作为良好的材用竹种进行培育。

"Then all of the plants, rose and cotton, would be very similar on the inside, even if they appeared outwardly very different," said the Cat.

&在棉花生长的那片土地上,有可能长出其它植物或花朵吗?棉花旁边也有可能生长着一株玫瑰,对吗?&猫问。&恩,我相信这是可能的。&男人说。

The percentage of total biomass allocated to roots was positively correlated with WUE for the seven investigated species (r=0.93, p.01). Results indicate that the species investigated are typical C3 plants. These spring ephemerals are characterized by higher P T and lower WUE in comparison with other desert species. The unique biomass allocation of low root/aboveground biomass ratio, higher leaf area ratio, higher leaf mass per unit leaf area, and photosynthetic traits are involved in the physiological mechanisms that contributed to the rapid growth of desert spring ephemerals.

这些结果表明,所观测的早春短命植物具有典型的C3植物特征,相比其它类型的荒漠植物具有较高的单位叶面积P高T及低WUE,并且在生长发育过程中表现出很低的根/地上生物量比、较高的叶面积比和单位叶面积干重,说明它们具有相对高的生长速率,这与其生长发育节律相一致,反映了它们与准噶尔荒漠环境相适应的特点。

The percentage of total biomass allocated to roots was positively correlated with WUE for the seven investigated species ( r = 0.93, p 〈 0.01). Results indicate that the species investigated are typical C3 plants. These spring ephemerals are characterized by higher Pn, Tr and lower WUE in comparison with other desert species. The unique biomass allocation of low root/aboveground biomass ratio, higher leaf area ratio, higher leaf mass per unit leaf area, and photosynthetic traits are involved in the physiological mechanisms that contributed to the rapid growth of desert spring ephemerals.

这些结果表明,所观测的早春短命植物具有典型的G植物特征,相比其它类型的荒漠植物具有较高的单位叶面积Pn、高Tr及低WUE,并且在生长发育过程中表现出很低的根/地上生物量比、较高的叶面积比和单位叶面积干重,说明它们具有相对高的生长速率,这与其生长发育节律相一致,反映了它们与准噶尔荒漠环境相适应的特点。

Seen from the functional group, perennial grasses and forbs had stable compositions, but compositions and number of shrubs, half shrubs, small half shrubs, annuals and biennials were unsteadiness, where aboveground biomass in warmed plots was much difference with control. Nitrogen addition may enhance aboveground biomass obviously from latter growth stages.

施用氮肥的效果在植物生长后期才明显的表现出来,施氮样地地上生物量明显提高;增温和施氮作用使地下生物量发生了一定变化,但无显著差异;通过多元逐步回归发现,影响植物群落地上生物量和地下生物量最显著的因子是10-20cm土层的土壤湿度。

Soybean planted in the yellow brown soil, althongh they had big difference in nodule numbers caused by different inoculation methods, there were no difference in the fresh shoot weight because of the poor nutritional conditions. Soybean planted in the brown soil, the difference between different inoculations and fresh shoot weight were obviously because of the balance nutritional conditions. Although there were big difference in nodule numbers when soybean were planted in the peat, there were no difference in the fresh shoot weight, this might be caused by peat, the peat were not a natural soil type and the nutritional conditions might be unbalance.

分期采样的结果表明,黄棕壤中栽种的大豆,虽然接种根瘤菌对结瘤作用有较大的影响,但由于黄棕壤的肥力状况欠佳,而对豆科植物地上部分生长的影响未显出作用;棕壤土中栽种的豆科植物,接种根瘤菌在结瘤方面和植物地上部分生长方面,由于土壤肥力状况较为平衡,均表现出明显的效果;草炭土中生长的豆科植物在结瘤方面虽然表现出较大差异,但由于这种土壤的肥力状况不适于豆科植物的生长,而使地上部的生长也未形成统计上的差异。

The infection of rhizobia to rice was a dynamic process beginning with surface colonization of the rhizoplane (especially at lateral root emergence), followed by endophytic colonization within roots, and then ascending endophytic migration into the stem base, leaf sheath, and leaves where they developed high populations.

同时,根瘤菌还可以沿植物的表面从根到地上部分迁移。在植物的生殖生长阶段,内生根瘤菌仍然保持活动性,可以进入烟草子房的子房壁、胎座和胚珠内,暗示根瘤菌通过种子向子代垂直传播的可能性。

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推荐网络例句

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。