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Through research, give the following conclusion: there is no competition, lotus leaf fern and wire fern Adiantum as drought intensifies, the total biomass of a decreasing trend when the water content at the same time, with the intensity of Increase in total biomass showed an increasing trend, LAR general with the increase in soil moisture and lower, with light to reduce the increase, when in a kind of competition within and between species, the lotus leaf fern Adiantum the total biomass is still followed Such laws, but because the resources snatch the total biomass decreased significantly.

通过研究，得到以下结论：在不存在竞争的情况下，荷叶铁线蕨与铁线蕨随着干旱的加剧，总生物量呈降低的趋势；当处于同一水分含量时，随着光强的增加，总生物量呈增加的趋势，LAR一般随土壤含水量的增加而降低，随光强的增加而降低，当处于种内和种间竞争时候，荷叶铁线蕨的总生物量仍遵循这种规律，但是因为资源的抢夺造成总生物量明显降低。

In the experiment, wheat (NongDa 189) plants were grown on a sand culture in a greenhouse. Relationship between leaf area and characteristic of root branching of winter wheat seedlings were studied, In addition, effects of phosphorus deficiency on leaf area, root morphology and measuring methods of root architecture were studied.

试验选用农大189号小麦为试验材料，进行温室内砂培试验，研究了冬小麦苗期积温、叶面积与根系分枝之间的关系，并探讨了磷胁迫对冬小麦苗期叶面积及其根系构型参数(主轴数量、长度、直径等)的影响，结果表明： 1。

Basic fertilizer (organic fertilizer 500kg/667m2) add medium-term (organic fertilizer 500kg/667m2) facilitates favor to high-yield with the best conprehensive quality;density（40cm×60cm）with the highest yield; plastic mulching can significantly increase plant height, leaf width, leaf length, mature leaves, basal culm thickness, the first grade cormels weight and the second grade cormels weight; the first grade cormels of red sprout clocasia escalenta weight and yield had the obvious phenomenon of rapid growth in the medium expansion period of clocasia escalenta (July 14); an appropriate increase in plant height and stem yield was conducive to the increase in corn yield, the increase in corn yield favor to the first grade cormel numbers, the first grade cormel yield, the second grade cormel numbers, the second grade cormel yield, and thus obtain a higher yield.

基肥（有机肥500kg/667m2）+中期（有机肥500kg/667m2）有利于获得高产，综合品质最好；密度（40cm×60cm）产量最高；地膜覆盖可明显提高植株高度、叶宽、叶长、成叶数、茎基粗度、子芋和孙芋重量；红芽芋子芋重量和产量在芋膨大中期（7月14日）具有明显的快速增长现象；适当增加株高和茎叶产量有利于母芋产量的增加，母芋产量的增加有利于子芋个数、子芋产量、孙芋个数、孙芋产量的增加，从而获得较高的产量。

In accordance with increasing concentrations of Ca~(2+), Ca~(2+)-ATPase and H~+-ATPase activity in plasma membrane and tonoplast of cucumber root were increased significantly at first, then decreased slightly later; H~+-ATPase activity in plasma membrane and tonoplast of cucumber leaf was changed unremarkably; Ca~(2+)-ATPase activity in plasma membrane and tonoplast of cucumber leaf was increased significantly at first, then decreased slightly later.

低温下，随Ca~(2+)浓度的升高根中质膜和液泡膜Ca~(2+)-ATP酶和H~+-ATP酶活性及叶片中质膜和液泡膜Ca~(2+)-ATP酶活性先升高后下降，叶片中质膜和液泡膜H~+-ATP酶活性无显著变化，说明适当增加营养液中Ca~(2+)浓度后，可提高ATP酶的活性减轻低温伤害。

In a colonizing population of Datura stramonium, there was significant plasticity in specific leaf area, leaf area ratio and number of leaves; traits that are associated with light capture in response to high density.

在曼陀罗的移植种群中，比叶面积、叶面积比和叶片数都具有显著的可塑性，这些特征都与捕光能力对高密度的响应有关。

Secondly, according to the stem and leaf anatomy, leaf epidermis, pollen morphology and floral development, it is found that there are no close relations between Acorus and Typhales, especially in the aspect of floral development. In the course of floral development of A. calamus, neither bracteloe primordium nor common primordium occurs in the whole course. Early development of the flower is strongly unidirectional. Three shield carpels develop into a pistil. In Sparganium fallax, each female flower has a bracteole. The bracteole primordium and the floral primordium originate from a complex structure. A single saccate carpel develops into a pistil. In staminate flowers, petal and stamen primordia initiate spirally.

菖蒲属与香蒲目的茎叶解剖特征、叶表皮特征、花粉特征及花器官发生特点等亦存在着明显区别，特别是花器官发生特点差异尤为显著，如菖蒲属花器官发生过程中，没有苞片原基，也不存在任何形式的复合原基，花被与雄蕊原基均以单向性方式发生，雌蕊由3心皮发育而成，具有&盾状心皮&的特点等，黑三棱属则有苞片原基发生，且苞片原基与雌花原基起源于共同的复合结构，雄花的花被原基和雄蕊原基均以螺旋状方式发生，雌蕊由单心皮发育而成，未发现有2或3个心皮原基或其痕迹的现象，体现出&囊状心皮&的特点。

She changes intermittently within this world change greatly intermittently small, to such an extent even having an once to go so far as to have dropped into the pond converging be accomplished from self tear; She has been coming across Griffin and fake sea turtle in loving the duchess , Cheshire mysterious and hard to guess cat , myth sermonizing , has always been has been shouting at the poker empress and a crowd poker soldier needing to behead others, participate in one frenzied tea party, one eccentric pestle ball game and one try, until final and empress conflicts occurred among now and then just now wake up, find that self as before lie on river bank, In the elder sister being flicked off mildly fall onto her several piece of leaf of in the face in the dream, she should become a poker with that several pieces of leaf.

在这个世界里她时而变大时而变小，以至于有一次竟掉进了由自己的眼泪汇成的池塘里；她还遇到了爱说教的公爵夫人、神秘莫测的柴郡猫、神话中的格里芬和假海龟、总是叫喊着要砍别人头的扑克牌女王和一群扑克士兵，参加了一个疯狂茶会、一场古怪的槌球赛和一场审判，直到最后与女王发生冲突时才醒来，发现自己依然躺在河边，姐姐正温柔地拂去落在她脸上的几片树叶——在梦里她把那几片树叶当成了扑克牌。

To investigate the leaching process in the prophase of leaf litter decomposition in water in subtropical region of China, we studied the leaching mass losses of leaf litter of 8 common species in Guangzhou in lentic or running water.

为了解亚热带地区水体中树叶凋落物在分解初期的淋溶规律，比较研究了广州地区8种常见树种的树叶凋落物在静水和流水环境中淋溶量的变化。

The grain-leaf ratio showed a periodic oscillation relation to total seedling number in each growing stage, it was decreased with the increasing of total seedling number in earlier winter stage, wintering stage and jointing stage and was increased with the increasing of total seedling number in turning green stage. The grain-leaf ratio was bigger when the total seedling number was 2700000-3200000 plants/hm^2 in earlier winter stage and was 6400000-8200000 plants/hm^2 in turning green stage.

粒叶比与各生育阶段总苗数呈周期性振荡关系，且随着冬前期、越冬期和拔节期总苗数的增加而减小，随着返青期总苗数的增加而增大，当冬前期总苗数在270万320万株／hm^2、返青期总苗数在640万820万株／hm^2时，粒叶比较高。

The results indicated that: compared with mono-cropping, the mean densities of rice stem borers, leaf roller, rice hoppers and leafhoppers in scale rice-duck farming were decreased by 54.4%, 48.8%, 73.6% and 96.1% respectively, and the rate of diseased plant of sheath blight and rice blast in IF were decreased by 78.9% and 48.5% respectively. Compared with the conventional rice-duck farming, the average densities of rice stem borer, rice leaf roller, rice hoppers and leafhoppers in IF was reduced by 18.2%, 9.5%, 7.0% and 0.82% respectively, and the rate of diseased plant of sheath blight in IF were decreased by 35.5%, unfortunately that of rice blast in IF was increased by 8.0%.

结果表明：规模稻鸭生态种养水稻二化螟、稻纵卷叶螟、稻飞虱和稻叶蝉平均虫量较水稻单一种植分别下降54.4%，48.8%，73.6%和96.1%，纹枯病和稻瘟病病株率分别降低78.9%和48.5%；较常规稻鸭生态种养水稻二化螟、稻纵卷叶螟、稻飞虱和稻叶蝉量分别下降18.2%，9.5%，7.0%和0.82%，纹枯病病株率降低35.5%，稻瘟病病株率升高8.0%。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。