应用灰色聚类和灰色关联分析对台湾青枣 引种适宜区的选择

综合利用灰色聚类和灰色关联分析两种研究方法，对台湾青枣原产地和拟引进地区的温度、湿度、降水等环境因子进行了全面的分析比较，根据取得的结果绘制了台湾青枣引种气候适宜区域图。对于划分出的不同区域的主要限制因子，提出了引种时应注意的问题。     

干花制作 国外手工制作干花的方法(之一)

干花既保持花卉本身的自然形态,又能持久不凋,越来越受到人们的欢迎。在国外,不少花卉爱好者都在家中自己制作干花,并插摆成各种干花艺术品,用以美化点缀居室和庭院。手工制作干花的方法很多,但无论采取哪种方法,使用何种植物材料,都要首先把握以下几点要领:①由于制成的干花枝一般都质地娇     

家庭干花制作

许多花草都可以通过干燥,变成独具魅力的干花。干燥的方法很多,关键是要针对不同的植物加以选择。下面介绍几种适用于家庭的干燥方法:     

龙柳栽植技术及干花制作工艺

龙柳为杨柳科柳属落叶小乔木或灌木,因枝干自然弯曲,被制作成天然干花艺术品出口创汇。     

干花盆景的制作

红河玉石产云南省境内的红河州,其摩氏硬度为6-6.5级之间不等。它神奇之处在于石种的结构巧妙,在石上呈现出一幅幅中国水墨山水画,这是大自然鬼斧神工的杰作。如《水中仙》留白处似羊脂水墨山水,平淡幽深,远树密叶苍茫,山头淡墨点皴,有烟云笼罩之感。用笔墨钩画山的结构层次,坚实厚重,虚空处渲染烟气,推出空间,虚实相生,其气韵生动,犹如海中一岛,故名《水中仙》。(陈丹华收藏)     

国外手工制作干花的方法(之二)

二、砂硼砂埋藏干制法用细砂制作干花,在欧洲已有几百年的历史了。这种方法简单说就是把花枝置于容器内,然后灌满干细砂,并敞开容器上口,以加快空气的流通和水分的蒸发。细砂在这里并不是用来吸收花瓣中水分的(即不用作干燥剂),而是为了让花朵在蒸发水分时,保持生长时的姿态。干燥所需时间通常是3—5周。具体要多久,还要看花瓣的厚薄、瓣数的多少及气温和湿度条件等。     

国外手工制作干花的方法(之三)

三、化学干燥剂埋制法目前在市场上可以买到的各种化学干燥剂,其主要成分是各种不同结构的二氧化硅胶体。这种晶体细粒能吸收空气中的水分,埋制干花时可使用。用化学干燥剂制作干花,这在干花制作技术上是一大改进。它使干制过程由几周缩短为几天,能干制的花卉种类也有所扩大,且制成的干花色泽愈加鲜艳,形态也更为逼真。     

台湾青枣贮藏期间外形与生理变化

台湾青枣在贮藏期间失水严重,硬度迅速下降;呼吸速率缓慢上升,跃变高峰出现在第6天;果皮叶绿素和蛋白质含量一直呈下降趋势,而维生素C和有机酸的含量先升后降,室温贮藏6天后其商业品质迅速下降.     

国外手工制作干花的方法(之四)

四、干制叶枝的方法利用干花花枝摆插各种形式的花卉装饰品,与用鲜切花材料摆插的效果相似。要获得主题生动、造型别致的干花制品,还需有变化多、形状美的各种干制叶枝作为背景的陪衬材料。用甘油水溶液浸泡处理,是干     

不同浓度蜂蜡涂膜剂对台湾青枣保鲜效果的影响

以浙江台州地区的脆蜜台湾青枣为试材,研究不同浓度的蜂蜡涂膜剂处理对常温(10~15℃)条件下台湾青枣贮藏保鲜效果的影响。结果表明:在试验范围内,1‰和2‰浓度的蜂蜡涂膜剂处理台湾青枣果实的保鲜效果均好于对照(不涂膜),其中以2‰浓度的蜂蜡涂膜剂处理保鲜效果最好,可以明显控制果实的失水,降低呼吸强度,延缓可溶性固形物和可滴定酸含量的下降速率,贮藏15 d好果率接近70%,显著高于对照。     

宇花灵对龙眼控梢促花效果试验研究

摘要：采用宇花灵控制龙眼冲梢,主要是通过叶片吸收有机营养,并提高叶片光合作用效能,使树体有机营养含量提高,调节植株营养生长与生殖生长关系,达到有效控制龙眼冲梢提高花质的效果。龙眼控冲梢最佳时期为冲梢幼叶未展前进行,此时采用180倍宇花灵叶面喷施,可有效控制冲梢,成花率可达95.72%,纯花穗率达95.84%,雌花比率达45.21%。若处理不及时,冲梢花穗幼叶开始展开,则需采用宇花灵与乙烯利配合使用。     

不同抗蒸腾剂对月季切花保鲜的影响

本文对几种抗蒸腾剂应用于月季切花保鲜的保鲜效果进行了研究,结果表明：抗蒸腾剂Vaporgard稀释至1：70浓度后喷洒在月季切花表面,可延长月季切花的保鲜期;抗蒸腾剂wiltpruf易导致白色花系的月季切花产生花朵变色,因而不适用于白色花系的月季切花保鲜;在实验设定的浓度内,抗蒸腾剂Transfilm未找寻到合适的适用于月季切花保鲜的浓度,其最适浓度有待下一步继续实验确定;外源ABA做为月季切花保鲜剂使用时,其最佳的喷施浓度为0.01g/L。     

Manufacturing resource modeling of complexassembly process under project-based manufacturing

In an engineering-to-order (ETO) company, organization and management of manufacturing process is differ from common products because of the complexity of product. A project-based manufacturing (PM) planning model for product final assembly is proposed based on single-piece and small-batch production model so that the characteristics of complexity, specificity and high complex product manufacturing process can be met by means of projected-based manufacturing. The method of layered network planning under project-based manufacturing can transform the objects of planning from parts to assembly cell in the course of final assembly that has some time-based buffer for planning; simultaneously a resource-task matrix is build for the whole assembly process. The matrix can achieve the relatedness between manufacturing resources and assembly task, and follow the resources loads in order to realize the matching of planning and resource against project product.     

海南海花岛软基处理工程中真空预压法的改进与机理分析

疏浚淤泥这种超软土地基目前主要采用排水固结法进行加固,然而,工程实践发现,淤堵是一个重要的问题,新型防淤堵材料和施工工艺是研究的热点。依托恒大海南海花岛真空预压处理工程,引入一种应用于超软土地基处理的新型防淤堵真空预压法。该方法是直排式真空预压方法的进一步改进,将防淤堵排水板取代传统排水板,在连接方式上,将无孔钢丝软管取代了水平波纹管,也将传统的包扎捆绑改进成了三通密封接头,枪钉固定。结合施工动态监测和加固后检测,表明了该方法的加固效果和实用性。在此基础上,结合已有的室内模型试验研究,阐述其抽真空过程中在排水板附近防淤堵的原理和改善机制。     

A tissue culture technique for vegetative propagation and low temperature preservation of Beta vulgaris

Summary A tissue culture technique for clonal propagation of Beta vulgaris is described. Flower buds or flower bud clusters formed adventitious shoots on half-strength Murashige & Skoog's medium supplemented with 10 mol/l benzyladenine (BA). The shoots were multiplied by axillary bud proliferation on a medium with 1 mol/l BA and rooted on a medium with 10 mol/l indolebutyric acid. The plants were vegetative. No mutations were observed. Genotypic variation was found in shoot formation, shoot multiplication and rooting. Some genotypes showed leaf malformations which were attributed to BA. Rooted plants in culture tubes could be stored for one year at 2 or 5°C and a low light intensity.     

Resource matching mode of collaborative manufacturing process for outsourcing planning of equipment products

To solve the problems of outsourcing planning matching with outsourcing resource and outsourcing process monitoring,outsourcing parts of collaborative manufacture mode based on project manufacturing management mode is put forward. The mode involved collaborative manufacturing resource capacity model,outsourcing plans and promises resources matching matrices based on constraints of time and resource,outsourcing planning and resource conflict resolution model can improve the feasibility of the outsourcing planning,resource matching and execution effectively and guarantee the outsourcing plans completed on time.     

The inheritance of flower colour and vegetative characters in Rubus coreanus

Summary Dominant genes An ₁ for pink flower colour and Br ₁ and Br ₂ controlling branching of the canes in Rubus coreanus are described. In an F₁ progeny and in first backcrosses to red raspberry, some seedlings inherited the ability of R. coreanus to form up to three accessory buds per node. Polygenic systems controlling spine number and spine size are described, number and size being positively correlated. It is postulated that the greater size of spines of h (glabrous-caned) plants is due to linkage of a block of size-controlling genes with the H locus. The greater number of spines of H (hairy-caned) plants is attributed to a pleiotropic effect of the H allele. A new type of dwarf, cauli-flower, which occurred in the F₁ and some first backcross progenies, is described.     

棉花育种家种子的生产和保存研究

根据在现有生产条件下,棉花良种生产和使用现状,指出加强棉花基础种子生产的技术关键是加强定向选择和及时去杂去劣;高度纯合的育种家种子可一次足量繁殖,进行室内长期贮存,再逐年分次利用,以使新品种能在生产上充分发挥其增产增收作用。     

哈密瓜干贮藏期褐变风险分析与评价

以伽师瓜为试材,研究干制方式和包装方式对哈密瓜干贮藏期褐变的影响,分析非酶褐变因子与褐变度之间关系,并评价贮藏期哈密瓜干褐变风险。研究认为,与NaHSO₃处理相比,阴干处理哈密瓜干贮藏过程中存在褐变发生风险,包装方式对哈密瓜干褐变无显著影响。贮藏过程中非酶褐变因子均发生变化,但与褐变之间的相关性显著受到干制方式的影响。不同处理条件下,可溶性蛋白含量与褐变度相关性均不显著;阴干处理条件下游离氨基酸、还原糖、Vc、总酚、类胡萝卜素等指标均与褐变度呈显著或极显著相关性;NaHSO₃真空包装条件下褐变度与非酶褐变因子间均无显著相关性,哈密瓜干褐变抑制显著。