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3 个结果
  • 简介:Thelengthsofmesocotylintheseedlingsof84lowlandricevarietiesand12uplandricevarietiesweremeasuredfollowingthetreatmentsofdaylightanddarknessduringgermination.Theelongationofmesocotylinthevarietiestestedwasinhibitedunderdaylightcondition,andthemesocotylofallthevarietieselongatedvariablyunderdarknesscondition.Theelongatedlengthsofthemesocotylinuplandrice,rangingfrom0.36cmto1.61cmwithanaverageof0.81cm,wasobviouslylongerthanthoseinlowlandrice,rangingfrom0.12cmto1.56cmwithanaverageof0.42cm.Among14ricevarietieswithover1cmofmesocotyllength,fivebelongedtouplandrice,andninetolowlandrice.Thepossibleutilizationoftheelongated-mesocotylricegermplasminvarietalimprovement,direct-seededplantingandseedpuritytestingwerediscussed.

  • 标签: 水稻 种质 纯度 种子质量