Effect of Low Temperature on Germination Characteristics of Rice Cultivars

查看全文 作　　者：Yadong [1]ZHAO;Dianfa [2]ZHOU;Xiuyun [1]LIN;Qiang [1]SUN;Pengzhi [1]Li;Ding [3]Zaisong;Jinming [1]WANG

机构地区：[1]Rice Research Institute,Jilin Academy of Agricultural Science,Changchun 136100,China;[2]Songyuan Academy of Agricultrual Science,Songyuan,138000,China;[3]Institute of Crop Science,Chinese Academy of Agricultural Sciences,Beijing 100081,China

出　　处：《Agricultural Biotechnology》索引2018年第7卷第6期,共3页

基　　金：Supported by the National Key R&D Program of China(2018YFD0300207);the Innovation Project of Jilin Province(CXGC2018ZY014,CXG2017ZD010) 摘　　要：The effects of low temperature on germination characteristics of rice seeds were studied,using three rice varieties as materials.The results showed that the germination rate,germination energy,germination index,vigor index,shoot length and root length all reduced with the decrease of temperature.When the treatment temperature was 10 ℃,whether or not cold-resistant varieties,the values of all parameters showed an extremely significant difference from the control's.When the stress temperature was 15 ℃,compared with the normal condition,the parameter values of the non-tolerant variety( Changbai 9) had an extremely significant difference and the germination rate,germination potential,seedling length and root length of two cold-tolerance varieties( Jisheng 202 and Tongjing 9) had little difference from the control.Therefore,the above four indicators at 15 ℃ can be considered as the evaluation indices of cold tolerance at early stage. 关键词：RICE LOW-TEMPERATURE STRESS GERMINATION CHARACTERISTIC

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Effect of Low Temperature on Germination Characteristics of Rice Cultivars

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