不同育苗方式对番茄幼苗质量的影响.pdf.pdf

第26卷第5期2008年10月上海交通大学学报f农业科学版)JOURNALOFSHANGHAIJIAOTONGUNIVERSITY(AGRICULTURALSCIENCE):1671—9964(2008)05—0491—05不同育苗方式对番茄幼苗质量的影响金彤,高丽红(中国农业火学农学与生物技术学院,北京100193)摘要:为筛选出适合番茄幼苗生长的最佳育苗方式,本试验以早春育苗番茄为对象,研究了CIS育苗钵、营养钵、穴盘育苗(番茄专用基质)、穴盘育苗(普通基质)4种育苗方式对番茄幼苗出苗率、生长动态、壮苗质量性状、,单株鲜重、根体积、壮苗指数、最大叶面积、叶片数等生长指标明显优于其他育苗方式,在低温处理过程中保持了较高的POD活性、CAT活性;专用基质穴盘苗在株高、叶绿素含量方面表现最好;营养钵培育的幼苗子叶面积显著大于其他育苗方式;普通基质穴盘苗在所有测量项目中表现一般或较差。关键词:番茄:育苗方式;壮苗指数;低温中图分类号:$~.3文献标识码:.CA0Li—hong(CollegeofAgronomyandBioteehnology,ChinaAgrieuhuralUniversity,Beijing100193,China)Abstract:Tofilterthebestseedlingculturemodeadaptingtothegrowthoftomato,thispapertooktomatoearlyspri‘ngseedingforobjecttoresearchtheeffectsofthefourdifferentseedlingculturelnodeswhichwereCIS,plug-seedling(specialmatrix-basedfortomato),plug-seedling(generalmatrix—based)andnutritionbowlOfftomatosproutingrate,growthtrend,seedlingqualitytraitsandlowtemperatureca—,plantfreshweight,rootvolume,seedlingstrangeindex,thelargestleafarea,thenumberofleavesandothergrowthindicesweregreatsignificantlyhigherthanotherseedlingculturenlodesandthetomatoseedingmaintainedhigherPODandCATactivityinalowtemperatureprocessing,plantheightandchlorophyllcontentwerethebestinthespecialmatrix—basedplugseedlings;thecotyledonsareasofthenutritionbowlseedlingsweresignificantlylargerthanoth