小麦叶片早衰突变体T68的早衰特性研究

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关键词小麦；叶片早衰；突变体；农艺性状；早衰特性；生理生化

中图分类号S51.1文献标识码A

文章编号 0517-6611（05）17-000-05

doi：10.969/j. issn. 0517-6611.05. 17. 008

开放科学（资源服务）标识码（OSID）：

Studyonthe Early Senescence CharacteristicsofWheatLeaf Mutant T68

SHAO Jin1，2 ， ZHANG Zhong-gui²，LIU Tang-yuet al（1.Hefei Institutes of Physical Science，CAS，Hefei，Anhui 230031；2.Anhui Zhuxin Agritech Co.，Ltd.，Hefei，Anhui 231201）

AbstractObjective]Tostudytheearlysenescencecharacteristicsofwheatlaf mutantT8.Method]ThewheatlineZhongke852andits early senescence mutant T68 induced by γ -ray were used as materials，the photosynthesis indices were detected，as well as the agronomic and yieldtraitsweraalyd，ndertoiltrteesiolgicaladoeicaleanssoflseneseceT8.esultuls showedthat Zhongke852andarlysenescence mutantT68couldompletethegrowthandmaturationprocesesnomall.HowevertheutantT86grewaboallintarlystag，wittegrowthcotiues，esmptomsofarlysenescencegraduallyitesif，hichused witherof tewholeplantuntildied，andledtotheplantheightandthousandgrain weight，aswellasyieldreductionultimately.Duringthe occureneofearlysenescencereactions，thePODandSODenzmeactivityofT68weresignificantlyhigherthantoseofZhongke852into thideafwhileeresigfcantlylowerinfagandtopsecondleaf.Conclusion]Teconclusiosaboecouldlatheoreticalfoundatiosfor physiological and biochemical mechanisms of mutant T68 for early senescence.

Key wordsWheat;Leaf earlysenescence;Mutant;Agronomictraits;Earlysenescencecharacteristics;Physiologyandbiochemistry

小麦是我国主要粮食作物之一，其产量的高低直接影响到国家粮食安全。（剩余7396字）