中國(guó)南方冬麥區(qū)和部分春麥區(qū)小麥品種穗發(fā)芽抗性的變異.pdf

1、安徽農(nóng)業(yè)大學(xué)碩士學(xué)位論文中國(guó)南方冬麥區(qū)和部分春麥區(qū)小麥品種穗發(fā)芽抗性的變異姓名：張海萍申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：作物遺傳育種指導(dǎo)教師：馬傳喜肖世和2003.5.1AbstractPre—harvestsproutingofwheatnotonlYresultsindecreasingofgrainyieldbutalSOaffectsflourqualityandseedvaluenextyearandSOonInrecentyears，

2、theincreasingofatmospheremoistureanddevelopmentofwhite—grainedwheatmakesthePre—harvestsproutingofwheatmoreandmoreseriousInthiSstudy，variationPreharvestsproutingresistanceofvarietiesinSouthwest，YangtseRiverwinterwheatregi

3、onandNortheastspringwheatregionwereresearchedwith345leadingvarietiessince1950s’bytestingthegerminationpercentageofgrainfallingnumberandQ—amylaseactivityTheresultswereasf01lows：1Thegerminationpercentagewasnegativelyandsig

4、nificantlycorrelatedWithfallingnumber2ThePre—harvestsproutingresistanceofwheathadtheinteractiveeffectbetweengenotypeandenvironment3Generally，thePre—harvestsproutingresistanceshowedthedecreasingtrendsince1950s’forwheatvar

5、ietiesgrowninthreewheatregions4Severalwheatvarietieswithlowergerminationpercentageandhigherfallingnumberwerediscovered；ThesewereBaikezaoNO2，Chuanmaill，Chuanl900—93～0—4—6，Mian84—304，Neijian9146，SW95—16117，Chuanyu21526，Mia

6、n79—2，Mianyan964—39，Mianyangll5，Mianyan968—28，Chuanyu2179，Kehua，Chuanful6—7，Chuanyu21646，Chuanyu21729：SonghuajiangNO1，Kefeng，Kequan，SonghuajiangNO7，BaimangZM340，KehanNO5，BamengmaiNO2，Shen6871KefengNO4，F(xiàn)ronTana，kejinNO6，D

7、aqingmang，LiaochunNO1，TiechunNO1，LongfumaiNO5，LongfumaiNO9：5Variationofa—amylaseactivitywasdeterminedduringgraingerminationQ—amylase～wasfirstlysynthesizedinthebeginningofthegermination，then，Ⅱ一amylase一2wasalsosynthesizedM