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This paper has studied the physiological and biochemical changes during the period of forming strong buds of tree peony, and expect to provide academic basis for extending its view value and economic benefit . The main results are as the following:1 Under the field condition, Characteristics of photosynthesis of tree peony are very regular. From before blooming to the prophase of abducting buds that after blooming ,that is April,May and June,the net photosynthetic rate of tree peony is higher than the other period .It indicates that this period is very important for accumulating photosynthetic products of tree peony . So, if we want to get quality flower of tree peony ,it is very important to strengthen the management of tree peony cultivation and to ensure provide the fertilizer and water.2 From the middle ten days of June, with the time elapsing and with the environment conditions worsening, the characteristics of photosynthesis of tree peony decline deeply. But it is different among different tree peony breeds. For example , cv. Wu Long Peng Sheng can also has higher net photosynthetic rate, it indicates that cv. Wu Long Peng Sheng is super than the other two tree peony breeds when adapting the environment conditions and cv. Wu Long Peng Sheng has wide prospect to extend .3 The main factors of effecting the characteristics of photosynthesis are stomatal factor and non-stomatal factor ,that is the ability of photosynthesis of leaf cells. Under the environment of high light intensity in midsummer, if overshadow tree peony properly, then it can slow the declining of chlorophyll content, and increase the net photosynthetic rate and benefit for the accumulating of photosynthetic products.4 The content of soluble sugar in the root of tree peony is the highest among different organs during the period of forming strong buds . According to analyse ,we believe that the soluble sugar will compose starch then, and provide the solid base of material for the growth and development next year. It provide us strong academic basis of adopting the method of cultivating root and protecting root under thefield environment conditions .In other words ,it will help to increase the health level of the whole plant of tree peony and will be beneficial to forming quality tree peony flower if we strengthen the management of root. 5 To tree peony, the endogenesis hormone is important for its growth and development .In the prophase ,that is about the blooming of tree peony and the mid-summer ,IAA and ZR contents are higher and GA content is lower and its changes are very little, and the content of ABA is decreasing . This indicates that IAA and ZR act the important promote function for growth and development of tree peony in this period, and the function of GA is not important. Bur in the period of anniversary senescence of tree peony , the content of IAA and ZR begin to decrease ,while the ABA content has a certain rebound .T
本研究对几个牡丹品种壮芽形成过程中的某些生理生化变化做了研究,以期了解牡丹生长发育过程中生理生化的变化规律,探讨大田栽培条件下提高牡丹花质量的栽培措施和管理技术,为提高牡丹的观赏价值和经济效益提供理论依据,结果如下:1 大田栽培条件下,牡丹光合特性在生长发育过程中表现出极强的规律性,牡丹各品种的光合速率从牡丹开花前,到牡丹花谢后的花芽诱导期前期(6月10日之前),也就是在4、5、6月份,各牡丹品种的净光合速率相对与其他时间都维持在比较高的水平,这说明,在这段时间,是牡丹光合产物积累的重要时期,因此,要保证得到高质量的牡丹花,在这段时间加强对牡丹的栽培管理,保证这个时期的肥水供应十分重要。2 从6月中旬后,随时间的推移,环境条件的恶化,牡丹的光合性能剧烈下降,但是不同牡丹品种间仍有差异,比如,乌龙捧盛仍可维持较高的光合水平,这说明了乌龙捧盛这个牡丹品种对于环境的适应性较之其他牡丹品种高,有着广泛的推广前景。3 影响牡丹光合性能的主要因子是气孔因素和非气孔因素即叶肉细胞的光合能力,在盛夏高温高光强的环境条件下,对牡丹进行适当遮荫,能缓解牡丹叶绿素水平的下降,适当提高Pn,有利于光合产物的积累。4 可溶性糖在牡丹各品种的壮芽形成过程中,根中可溶性糖的含量在牡丹各部位中始终维持最高水平,分析认为这些可溶性糖在根系中进一步合成淀粉等储藏性物质,为来年牡丹的生长提供雄厚的物质基础,这为我们在大田栽培条件下对牡丹采取养根护根的栽培措施提供了有力的理论依据,即在大田栽培条件下,加强对牡丹根系的管理,有助于提高牡丹整株的健壮程度,有益于形成高质量的牡丹花。5内源激素对牡丹的生长发育调节作用是十分明显的,在前期,即开花前后和盛夏,IAA和ZR含量维持在比较高的水平,GA含量低且变化不明显,ABA含量逐渐降低,说明了IAA和ZR对牡丹在这段时间内的生长发育起到重要的促进作用,GA的作用不是很明显,ABA可能在高温高光强下有明显的升高,也说明了ABA的确有一些促进作用,但是到了牡丹周年衰老期,IAA和ZR的含量开始下降,ABA含量却有了一定程度的反弹,说明了IAA和ZR的作用开始降低,ABA起到了促进衰老的作用
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In the Capital of Canal Plaza Design:the three layers superpose each other and compose a whole project in diverse forms.
在运河之都广场设计中这三个层面以不同的方武叠加后形成了完整的方案。
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His first symphony (1897) was such a disaster that he could not compose for three years.
他的第一部交响曲(1897)是一场灾难,使他在三年内都无法作曲。
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With prevents thunder colleges and universities develop omnibearing cooperation, is a by prevent thunder expert troop compose 's, at domestic compares early engage in modern prevent thunder theory research, prevent thunder product develop and prevent thunder engineering practical profession prevent thunder company, AAA grade credit enterprise, is China weather academy thunder and lightning protect committee commissary, Zhejiang safe prevent association syndic, Nanjing information engineering university prevent thunder producing study grinds base, possess prevent thunder engineering profession design and construct intelligence.
帮忙修改下,公司的简介---有难度的-敢挑战吗?公司简介杭州易龙电气技术有限公司(杭州易龙防雷科技有限公司)与防雷院校开展全方位合作,是一家由防雷专家团队组成的、在国内较早从事现代防雷理论研究、防雷产品研发和防雷工程实践的专业防雷公司、AAA级信用企业,是中国气象学会雷电防护委员会委员、浙江省安防协会理事、南京信息工程大学防雷产学研基地,具有防雷工程专业设计和施工资质。
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Nevertheless, as do poineering work board roll out, domestic telecommunication recombines begin, and the ceaseless innovation of pattern of TMT technology, application, trade derives new fractionize field, ever was considered as " taletelling " TMT industry, gain the favour that achieves congenial compose again.
不过,随着创业板的推出、国内的电信重组的开展,以及TMT技术、应用、商业模式的不断创新衍生出新的细分领域,曾被认为是"讲故事"的TMT行业,再次获得创投机构的青睐。
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More over, the factors that compose the three elements are analyzed, and a new taper model is presented.
以此新模型为基础,建立了城市竞争力评价的指标体系。
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A nucleus of the tegmentum; it contains the cell bodies of many the neurons that compose the mesotelencephalic dopamine system.
为盖膜的神经核;它包括许多神经元的细胞体,组成 mesotelencephalic 多巴胺系统。
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The area of the ventral tegmentum medial to the substantia nigra; it contains the cell bodies of many of the neurons that compose the mesotelencephalic dopamine system.
为腹内侧盖膜到黑质的区域;它包括许多神经元的细胞体,组成 mesotelencephalic 多巴胺系统。
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Although honored guests of compose a quarrel are very good friend, but ugly word says thereinbefore.
虽然说和嘉宾们都是很好的朋友,但丑话说前头。
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His art has the same qualities as Russian art in aspects of Thespian element, tension and suffering of today's people. He adopts tempera to form a 3D to compose a picture of preciseness and force.
他采用了一些坦培拉的技法,将画面的三度空间加以压缩,使绘画在平面性的结构方面获得了构图的严谨与力度。
- 相关中文对照歌词
- Some Type A Way
- I'm That Type Of Guy
- Type Of Shit I Be On
- Wifey Type
- Type Of Way
- Casanova Brown
- That Type Of Girl
- Type A Girl
- Type Of Way (Remix)
- Fall For Your Type
- 推荐网络例句
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Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.
目的:探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等,并与健康人进行比较,从而量化精神分裂症病人的认知功能损害,并进一步探讨其认知功能与疾病严重程度的关系。
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Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.
指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素,还对R152a水合物的放冷进行了实验研究。
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Water is the construction and development of socio-economic basis,and strategic resources.
水是社会经济建设与发展的的基础性,战略性资源。