全 文 ：ResearchontheMorphologicalCharacterand
GerminationCharacteristicsofTamarix
elongataLedeb.Seeds
YUJun1 , JIANGXi2 , BAIBao-wei3 , JIAOPei-pei4, 5 , PANGXin-an4, 5＊
1.DepartmentofScienceandTechnology, TarimUniversity, Alar843300;2.ColegeofPlantScienceandTechnology, TarimUniversity,
Alar843300;3.ColegeofLifeScience, TarimUniversity, Alar843300;4.KeyLaboratoryofProtectionandUtilizationofBiologicalRe-
sourcesinTarimBasinofXinjiangProductionandConstructionCorps-CultivationBaseofStateKeyLaboratory, Alar843300;5.Biological
TechnologyResearchandDevelopmentCenter, TarimUniversity, Alar843300
Abstract　[ Objective] TheaimwastostudythegerminationbehaviorofTamarixelongataLedeb.undernaturalconditions.[Method] Byusing
T.elongataastheexperimentalmaterials, theseedmorphologyandgerminationcharacteristicswereobservedandmeasured.[ Result] ①T.
elongataseedwas1 011.96μminlengthand399.94μminwidth, andthethousand-seedweightwas38.66mg;②thegerminationrate, germi-
nationenergy, germinationindexandgerminationcoeficientofT.elongataseedswere95.56%, 46.67%, 20.25and56.86respectively;③
therewerenosignificantdiferencesinmorphologyandgerminationcharacteristicsamongthethreediferentgeographicalpopulations.[ Con-
clusion] ThepresentresearchwilprovidereferencefortheintroductionandbreedingofT.elongataaswelastheprotectionofsanddunevegetation.
Keywords　TamatixelongataLedeb.;Seed;Morphology;Germination
Received:November8, 2010　　Accepted:December19, 2010
SupportedbyaGrantfromtheNationalNaturalScienceFoundation
ofChina(30670133).
＊Correspondingauthor.E-mail:1517504814@qq.com
　　TamarixelongataLedeb.belongingtoTamarixspp.,
Tamaricaceae[ 1] isakindofshruborsmalarbor, 1 -5 min
height;besides, itflowersfrom April-Mayandfruitsfrom
May-June[ 2].T.elongatawithmanyadvantagesincluding
light-loving, drought-resistanceandsaline-alkaliresistanceis
akindofgoodtreespeciesforwindbreakandsandfixation,
aforestationandgreening, soilandwaterconservation[ 3].
Therelatedresearchonmorphologicalanatomy, community
ecology, physiologicalecologyandplantchemistryofT.elon-
gatahavebeencarriedoutalovertheword[4-10] ;however,
theintroductionandcultivation, breedingofseedsourceof
T.elongatahavebeenrarelyreported[ 11-13] , whichneedsto
befurtherstudied.Inthepresentresearch, byusingT.elon-
gataastheexperimentalmaterials, theseedmorphologyand
germinationcharacteristicswereobservedtounderstandthe
germinationbehaviorofT.elongataundernaturalconditions,
toprovidereferencefortheintroductionandbreedingof
T.elongataaswelastheprotectionofsanddunevegetation.
MaterialsandMethods
Materials
T.elongataseedswerecolectedfromthediferentgeo-
graphicalpopulationsinAlarCitylocatedinupperreachesof
TarimRiverinnorthernpartofTarim Basin;maturefruits
werepickedandair-dried, andpreservedatroomtemperature
forlateruse.
Methods
Determinationofseedsizeandweight　Fulmatureseeds
ofT.elongata(ofwhichtheepidermalhairhadbeenre-
moved)wereselectedwithnakedeye;thelengthandwidth
of30 seedsweremeasuredunderstereomicroscopeandthen
averagedrespectively.Thethousand-seedweightwasmeas-
uredbyusinganalythicalbalancewith0.000 1 accuracy,
whichwasrepeatedfor3 times, andtheaveragevaluewas
recoded.
Seedgerminationexperiment　FulmatureseedsofT.elon-
gata(withepidermalhair)wereselectedwithnakedeye;then
every30seedswereuniformlyplacedinaPetridishes(diame-
terof90 mm)laidwithmoistfilterpaper, with3 repetitions;
thedisheswerelabeledandplacedundernaturalconditions
(room temperature, naturallight, distiledwater)forseed
germination, andobservedeveryday;thedailygerminated
seedswererecordedaccordingtothegerminationstandard
thattheradiclebreakthroughtheseedcoat.Appropriatedis-
tiledwaterwasaddedsometimestokeepthefilterpaper
moistuntiltheendofseedgerminationexperiment.
Dataprocessing
Thegerminationrate, germinationenergy, germination
indexandgerminationcoefficientwerecalculatedaccordingto
thefolowingformulas:germinationrate=(Totalnumberofthe
germinatedseedstiltheendoftheexperiment/totalnumberof
thetestedseeds)×100%;germinationenergy=(Numberof
normalgerminatedseedswithinthedefineddate/Totalnumber
ofthetestedseeds)×100%;germinationindex=΢(Numberof
germinatedseedsonthatday/Numberofdaysofseedgermina-
tion);germinationcoeficient=100×΢(Dailygerminatedseeds
number)/΢(Dailygerminationseednumber×Numberofdays
fromthebeginningtotheendofgermination).Thedatawere
recordedintheformofmean±standarderror.One-WayANO-
VAofExcel(2003)Softwarewasusedforthecalculationof
diferencesamongtheindexesandsignificanttest.
ResultsandAnalysis
Seedsizeandweight
T.elongataseedsfromthedifferentgeographicalpopula-
AgriculturalBasicScienceandMethodAgriculturalScience＆Technology, 2010, 11(11-12):50-51, 58Copyright 2010, InformationInstituteofHAAS.Alrightsreserved.
DOI :10.16175/j.cnki.1009-4229.2010.z2.051
tionswerealsmalerandlighter.Theaveragelength, width,
aspectratio, thousandseedweightwererespectively1 011.96
μm, 399.94 μm, 2.53, 38.66mg.Besides, therewasnosig-
nificantdiferenceinseedsizeandweightamongthedifferent
populations(Table1).
Table1　ThesizeandweightofT.elongataseeds
Popula-
tions
Length
μm
Width
μm
Length-width
ratio
Thousand-seed
weight∥mg
A 1 012.13±12.73 397.97±5.70 2.55±0.02 38.64±0.14
B 1 014.29±13.19 401.20±5.98 2.53±0.01 38.36±0.21
C 1 009.45±13.57 400.66±6.10 2.52±0.01 38.99±0.15
Seedgerminationcharacteristics
AloftheT.elongataseedsfromthedifferentgeograph-
icalpopulationscouldgerminate.Theaveragegermination
rate, germinationenergy, germinationindexandgermination
coeficientwere95.56%, 46.67%, 20.25and56.86, respec-
tively.Therewasnosignificantdifferenceinthegermination
indicesamongthediferentpopulations.Theseedgermination
indexeswereshowninTable2.
Table2　ThegerminationindexesofT.elongataseeds
Popula-
tion
Germination
rate∥%
Germination
energy∥%
Germination
index
Germination
coefficient
A 95.56±1.11 46.67±1.92 20.22±0.44 56.59±0.71
B 96.67±1.92 47.78±1.11 20.64±0.15 57.68±0.95
C 94.44±1.11 45.56±2.22 19.89±0.26 56.30±0.42
Conclusions
Seedmorphologicalcharacteristics
T.elongatafruitwascapsulewithreddishorearthyelow
pericarp, containingseveralseeds;theseedwassmaland
light, rod-like, brownorpurple, withtuftedepidermalhairsat
thetip;besides, theseedcouldfloatintheairanddisseminate
relyingonwind;therewasnosignificantdifferenceinseedmor-
phologyamongthediferentgeographicalpopulation.
Seedgerminationcharacteristics
AloftheT.elongataseedsfromthedifferentgeograph-
icalpopulationscangerminateundernaturalconditions(room
temperature, naturallight, distiledwater), andthegermina-
tionconditionswerenotharsh;thisstudyalsofoundthatthe
seedgerminationhadsomecharacteristicsincludinghigherseed
vigor, strongerseedlifeforce, rapidgerminationandtidyseed-
lings;therewasnosignificantdifferenceingerminationcharac-
teristicsamongthediferentgeographicalpopulations.
Acknowledgements
IwishtoexpressmysincereappreciationtoLIUMing-ting
whohadprovidedusefulhelpforspeciesidentificationof
Tamatixelongate.
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(下转第 58页)
51YUJunetal.ResearchontheMorphologicalCharacterandGerminationCharacteristicsofTamarixelongataLedeb.Seeds
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玉米湿法实验室浸泡工艺的浸泡效果分析
尚会建＊ ,允川 ,蒋梁鹤 ,王亮 ,杨立彦 ,郑学明 ,王丽梅　(河北科技大学化学与制药工程学院 ,河北石家庄 050000)
[目的 ]确定实验室玉米淀粉生产的最适宜条件 ,并对浸泡效果进行分析。
[方法 ]应用正交试验确定适宜的工艺条件 ,通过光学显微镜和扫描电子显微镜对浸泡效果进行分析。
[结果 ]适宜的浸泡条件为:浸泡时间 48h,浸泡温度 55℃, SO2浓度 0.2%。显微分析结果为:在适宜的浸泡条件下 ,蛋白质基质分解充分。浸泡效果的好坏与蛋白质基质的分解程度呈正相关。
[结论 ]该研究可为实验室玉米淀粉的浸泡工艺研究提供基础。
关键词　玉米;浸泡工艺;显微分析;蛋白质分解
作者简介　尚会建(1972-),男 ,河北石家庄人 ,副教授 ,硕士 ,研究生导师 ,从事传质与分离研究。 ＊通讯作者。
收稿日期　 2010-12-03　　修回日期　 2011-01-07
(上接第 51页)
长穗柽柳种子形态特征与萌发特性初步研究(摘要)
于军 1 ,姜喜2 ,白宝伟3 ,焦培培4, 5 ,庞新安 4, 5＊　(1.塔里木大学科技处 ,新疆阿拉尔 843300;2.塔里木大学植物科技学院 ,新疆阿
拉尔 843300;3.塔里木大学生命科学学院,新疆阿拉尔 843300;4.新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室 -省部共建国家重
点实验室培育基地,新疆阿拉尔 843300;5.塔里木大学生物技术研究开发中心 , 新疆阿拉尔 843300)
[目的 ]了解柽柳植物在自然条件下的萌发行为。
[方法 ]以长穗柽柳为实验材料 ,观察研究了种子形态与萌发特性
[结果] ①长穗柽柳种子平均的长、宽、千粒重分别为 1 011.96μm、399.94μm、38.66mg;②自然条件下长穗柽柳种子平均的发芽率 、发芽势、
发芽指数、发芽系数分别达到 95.56%、46.67%、20.25、56.86;③各地理居群之间的种子形态及萌发特性没有显著性差异。
[结论 ]该研究以期为长穗柽柳的引种繁育及沙丘植被保护提供参考。
关键词　长穗柽柳;种子;形态;萌发
基金项目　国家自然科学基金资助项目(30670133)。
作者简介　于军(1968-),男 ,山东乳山人 ,硕士 ,副教授 ,从事荒漠化防治与生态恢复研究。＊通讯作者。
收稿日期　 2010-11-08　　修回日期　 2010-12-19
58 AgriculturalScience＆TechnologyVol.11, No.11-12, 2010