简介：Light-weightcompositepanelsweremanufacturedusingkenafcoreparticlesascorematerialandkenafbastfiber-wovensheetsastopandbottomsurfaces.Methylenediphenyldiisocyanate(MDI)resinwasusedastheadhesivewiththeresincontentof4%forcoreparticlesand50g/m2forbastfiber-wovensheets.Thetargetboarddensitiesweresetat0.35,0.45and0.55g/cm3.ThecompositepanelswereevaluatedwithJapaneseIndustrialStandardforParticleboards(JISA5908-2003).Theresultsshowthatthecompositepanelhashighmodulusofruptureandinternalbondingstrength.Thepropertiesof0.45g/cm3densitycompositepanelare:MOR20.4MPa,MOE1.94MPa,IB0.36MPa,WA142%,TS21%.Kenafisagoodrawmaterialformakinglight-weightcompositepanels.

简介：在自然第二等的森林里的不同轻紧张下面的分数维的尺寸ofPiceakoraiensis幼苗的变化被学习。结果证明与轻环境的变化，王冠人物ofPiceakoraiensis幼苗在侧面的数字，侧面的增长，侧面的干燥重量，和特定的叶区域展出了更大的塑料。幼苗王冠的计算分数维的尺寸的范围在2.5728和2.1036之间被限制，但是分数维的尺寸的最大值在条款完成了中等shading，处于极端低轻条件，分数维的尺寸是最少的。

简介：许多植物heterophylly展出；在叶形态学的空间地并且时间地显著的个体发生的差别可以在多样的产地下面在他们的成功起一个adaptative作用。因此，这研究试图在叶获得卓见进差别heterophyllous山梅花oblataLindl的功能的特点，它广泛地在华东在不同轻紧张下面在全世界被用作一棵装饰的树。没有重要差别在在矛尖状形状、心形的叶子之间的特定的叶区域(SLA)存在。在每光联合起来，俘获表面区域在矛尖状形状、心形的叶子之间部署了的投资的差别可能不是明显的。这可能正在归因于湿的单个叶和心形的叶子的干燥重量比矛尖状的叶子的那些显著地高，但是心形的叶子的叶长度和叶厚度是比矛尖状的叶子的那些显著地低的事实。阴影树的SLA比阳光树的显著地高。投资每阴影树的轻俘获表面联合起来比阳光树的低，使增加在低光的环境的轻俘获和使用效率可能。phenotypic粘性最长叶矛尖状的叶子的功能的特点因为前者是少年，后者在S的种系发生的开发的过程期间是成年的叶形状，比心形的叶子的那些高。过寺院生活。为阳光树的叶厚度和叶潮湿的phenotypic粘性的更高的范围可能是有益的在热点环境，和单个叶的phenotypic粘性的更低的范围获得水损失和滋养的剥夺的更有效的控制湿、干燥的重量，并且为阴影树的SLA可以获得一个优点增加资源(特别光)在低光的环境的俘获和使用效率。简言之，植物的成功地生态的策略是发现一个最佳的模式让在各种各样的功能的特点之间的交易获得更多的生活资源并且完成更多的健康优点像一样在multivariate环境可能。

简介：Stomatalcharacteristicsanditsplasticityweresurveyedinleavesoffourcanopyspecies,Shoreachinensis,Pometiatomentosa,Anthocephaluschinensis,Calophyllunpolyanthumandthreemiddle-layerspecies,Barringtoniapendula,Garciniahanburyi,Horsfieldiatetratepala,acclimatedtodifferentlightconditionsformorethanoneyear.Allplant'sstomataaredistributedontheabaxialofleaves.PometiatomentosaandBarringtoniapendulahavehigherstomataldensityandtheguardcelllengthofAnthocephaluschinensisandCalophyllunpolyanthumweremuchgreaterthanothers'.Stomataldensityandstomatalindex(ratioofstomatalnumberstoepidermalcellnumber)wereincreasedwithgrowthirradianceincreased,whilenumbersofstomataperleafwerehigherinthelowthanthehighrelativePFD,andstomatalconductanceofleaveswasthehighestinthe50%offulllightexceptforAnthocephaluschinensis.TherelativePFDhaslittleeffectsontheguardcelllengthofallsevenplants.Wehavealsofoundasignificantnegativecorrelationbetweenstomataldensityandleafarea,butthestomatalconductancewasnotsignificantlypositivewiththestomatalconductance.Theanalysisofphenotypicplasticityofstomatalcharacteristicsshowed:plasticityindexforstomatalindexandnumbersofstomatalperleafweresimilarforcanopyandmiddle-layerspecies,whiletheplasticityindexofstomataldensityandstomatalconductanceweresignificantlygreaterforcanopyspeciesthanmiddle-layerspecies.Thehighplasticityofcanopyspecieswasconsistentwiththehypothesisthatspecializationinamorefavorableenvironmentincreasesplasticity.

简介：Thelight-harvestingchlorophylla/b-proteincomplexplaysanimportantroleinphotosynthesisofplants.Afull-lengthcDNAoflight-harvestingchlorophylla/b(cab)genewasclonedfromthefirststrandofMoso(Phyllostachysedulis)cDNAthroughRT-PCRandRACEmethods,namedascab-PhE10(cabgene10fromPh.edulis).Thelengthofcab-PhE10(GenBankaccessionnumber:EU118754)is1151bp,whichcontainsanopenreadingframeencoding283aminoacidsfrom81stto932ndposition.Thebioinformaticsanalysisindicatedthattheproteinencodedbycab-PhE10hadachlorophlla/bbindingdomain(83rd-247thposition),twoproteinkinaseC-phosphorylationsites,threeN-myristoylationsitesandayiaA/Bdoublehelixdomain.Theaminoacidsequenceofcab-PhE10showedhighsimilaritywiththecabgenesofOryzasativa,Zeamays,Hordeumvulgare,andVitisvinifera,morethan80%,respectively,whichindicatedthatcab-PhE10genebelongstolhcb5genefamily.

简介：Dalbergia印度黄檀Roxb。是南亚的有希望的多种用途的树种类之一。大多数D的种植园。从种子的印度黄檀由于死回来疾病正在面对严重威胁，它最终在一些月以内引起这个潜在的树种类的死亡。植物的繁殖能避免死回来疾病。D的不同年龄组的三十棵母亲树。印度黄檀为从D评估树枝剪样的rooting行为被选择。由植物生长素影响了的印度黄檀(在100点的IAA或IBA，200，500mg敧敭瑮瀠潲潴潣獬愠敲渠敥敤?潦?潣獮牥慶楴湯漠?桴?灳'虜瑂