松嫩平原水稻芽期耐盐碱鉴定与分级评估  

Identification and Grading Evaluation of Saline-Alkali Tolerance of Rice at Gernination Stage in Songnen Plain

作　　者：孟英[1,2,3,4] 徐英哲 唐傲 刘猷红[1,2] 董文军 王立志 刘凯[2,5] 来永才 MENG Ying;XU Ying-zhe;TANG Ao;LIU You-hong;DONG Wen-jun;WANG Li-zhi;LIU Kai;LAI Yong-cai(Institute of Crop Cultivation and Tillage,Heilongjiang Academy of Agricultural Sciences,Harbin 150023,China;Northeast Branch of National Center of Technology Innovation for Saline-Alkali Tolerant Rice,Harbin 150086,China;National Center of Technology Innovation for Saline-Alkali Tolerant Rice,Sanya 572020,China;Heilongjiang Provincial Key Laboratory of Crop Molecular Design and Germplasm Innovation,Harbin 150023,China;Heilongjiang Academy of Agricultural Sciences,Harbin 150086,China)

机构地区：[1]黑龙江省农业科学院耕作栽培研究所,黑龙江哈尔滨150023 [2]国家耐盐碱水稻技术创新中心东北中心,黑龙江哈尔滨150086 [3]国家耐盐碱水稻技术创新中心,海南三亚572020 [4]黑龙江省作物分子设计与种质创新重点实验室,黑龙江哈尔滨150023 [5]黑龙江省农业科学院,黑龙江哈尔滨150086

出　　处：《黑龙江农业科学》2022年第8期1-9,共9页Heilongjiang Agricultural Sciences

基　　金：黑龙江省科技计划省院科技合作项目(YS20B12);国家自然科学基金(31701503);黑龙江省农业科学院“农业科技创新跨越工程”专项(HNK2019CX02,HNK2019CX12);黑龙江省农业科学院杰出青年基金项目(2021JCQN003);黑龙江省省属科研院所科研业务费(CZKYF2021-2-C005,CZKYF2021-2-A002);黑龙江省省属科研院所科研业务费重点项目(CZKYF2021-2-B019);海南省重大科技计划项目(ZDKJ202001)。

摘　　要：为了建立精准的水稻芽期耐盐碱评价体系,本研究采用NaCl∶Na2SO4∶NaHCO3∶Na2CO3摩尔比为1∶9∶9∶1的盐碱混合液模拟松嫩平原盐碱地混合盐溶液,采用梯度试验筛选混合盐碱液胁迫浓度范围,确定水稻品种芽期耐盐碱鉴定的最佳浓度。并用确定浓度的盐碱混合液对243份水稻材料进行芽期耐盐碱鉴定。结果表明,盐碱混合液浓度125mmol·L-1是鉴定的最佳浓度。243份水稻材料在该浓度下鉴定获得耐盐碱性极强的品种72份,耐盐碱性强的品种77份,耐盐碱性中等的品种57份,耐盐碱性弱的品种27份,耐盐碱性极弱的品种10份。In order to establish a precise evaluation system forsaline-alkali tolerance of rice at gernination stage,the molar ratio of NaCl∶Na2SO4∶NaHCO3∶Na2CO3=1∶9∶9∶1was used to simulate the mixed salt solution in the saline alkali land of Songnen Plain.And used the gradient test to screen the stress concentration range of the mixed salt and alkali solution,so as to determine the best concentration for the identification of saline-alkali tolerance of rice at the gernination stage.243rice materials were identified for saline-alkali tolerance at gernination stage with a certain concentration of salt and alkali mixture.The results showed that the optimum concentration was 125mmol·L-1 of salt alkali mixture.Under this concentration,72varieties with extremely strong saline-alkali tolerance and 77varieties with strong saline-alkali tolerance were obtained from 243varieties;There were 57varieties with medium saline-alkali tolerance,27varieties with weak saline-alkali tolerance and 10varieties with extremely weak saline-alkali tolerance.

关 键 词：松嫩平原 水稻 芽期 耐盐碱 发芽率 

分 类 号：S156.45[农业科学—土壤学]