资源描述：
《孕穗期冷水胁迫对寒地水稻干物质生产的影响》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、中国水稻科学(ChinJRiceSci),２０１６,３０(３):３１３－３２２http://www．ricesci．cnDOI:１０．１６８１９/j．１００１Ｇ７２１６．２０１６．５１８７３１３孕穗期冷水胁迫对寒地水稻干物质生产的影响王士强１,２,３赵海红４萧长亮３赵黎明３顾春梅３那永光３解保胜３程式华１,２,∗(１沈阳农业大学农学院,沈阳１１０１６１;２中国水稻研究所水稻生物学国家重点实验室,杭州３１０００６;３黑龙江省农垦科学院水稻研究所,黑龙江佳木斯１５４００７;４黑龙江省农业科学院佳木斯分院,黑龙江佳木斯１５４００７;∗通讯联系人,EＧmail:shcheng＠mail．hz
2、．zj．cn)EffectsofColdStressDuringBootingStageonDryMatterProductionofRiceinColdRegionWANGShiＧqiang１,２,３,ZHAOHaiＧhong４,XIAOChangＧliang３,ZHAOLiＧming３,GUChunＧmei３,NAYongＧguang３,XIEBaoＧsheng３,CHENGShiＧhua１,２,∗(１CollegeofAgronomy,ShenyangAgriculturalUniversity,Shenyang１１０１６１,China;２StateKeyLaboratoryo
3、fRiceBiology,ChinaNationalRiceResearchInstitute,Hangzhou３１０００６,China;３RiceResearchInstituteofHelongjiangAcademyofLandReclamationSciences,Jiamusi１５４００７,China;４JiamusiBranchofHeilongjiangAcademyofAgriculturalSciences,Jiamusi１５４００７,China;∗Correspondingauthor,EＧmail:shcheng＠mail．hz．zjc．n)WANGShiqia
4、ng,ZHAOHaihong,XIAOChangliang,etal．Effectsofcoldstressduringbootingstageondrymatterproductionofriceincoldregion．ChinJRiceSci,２０１６,３０(３):３１３Ｇ３２２．Abstract:Torevealtheeffectsofchillingatthebootingstageonricedrymatterproduction,３０mainricecultivars(lines)inHeilongjiangProvincewereselectedandsubjecte
5、dtochillingstress(１７°Ccoldwaterirrigation)for２０days．Theresultsshowedthatthefilledgrainnumberperhill,seedsettingrate,１０００Ｇgrainweight,andgrainyieldofallcultivarsdecreasedundercoldwaterirrigationatbootingstage．Thematerialswereclassifiedasgrades１,３,５,７and９accordingtorelativeseedsettingrate．Mostoft
6、hembelongedtogrades７and９,accountingfor３０％ofthetotal,whilethefewestcultivarsbelongedtograde１,occupying１０％．Thecoldwaterstressdecreaseddrymatteraccumulationfromheadingtomaturityanditsratio,cropgrowthrate,netassimilationrate,filledgrainnumberpersquarecentimeterleafarea,harvestindex,leafareaindex,le
7、afbasicangleofflagleaf,droopingangleofflagleaf,droopingangleofsecondleaffromtop,droopingangleofthirdleaffromtop．However,thecoldwaterstressincreasedtheratioofleafareaoftopthreeleaves．Thecorrelationanalysisresultsshowedthattherelati
