不同盐分浓度对水稻经济性状的影响  

Effects of Different Salt Concentration on Economic Characters of Rice

作　　者：张素红[1] 李振宇[1] 阙补超[1] 马凌霄[1] 孙杰[1] ZHANG Su-hong;LI Zhen-yu;QUE Bu-chao;MA Ling-xiao;SUN Jie(Liaoning Saline-Alkali Land Utilization Research Institute,Panjin Liaoning 124010,China)

机构地区：[1]辽宁省盐碱地利用研究所,辽宁盘锦124010

出　　处：《北方水稻》2020年第6期21-23,29,共4页North Rice

基　　金：辽宁省农业重大专项子课题“辽宁滨海稻区耐盐碱优质高产多抗水稻新品种培育”(2019JH1/10200001-3);辽宁省科技特派团“大洼区水稻提质增效省级科技特派团”(2019JH5/10100024)。

摘　　要：淡水灌溉条件下,在6个梯度的全盐含量土壤中进行试验研究,分析18个稳定品系的各个性状平均值和各个性状的盐害率平均值的变化情况。结果表明:土壤全盐浓度0.9‰和2‰的各性状平均值差异不大,土壤全盐浓度3‰和4‰的各性状平均值差异明显,可以用来鉴定各品系的耐盐性能,土壤全盐浓度5‰以上很难有经济产量;3个土壤全盐浓度2‰、3‰和4‰间各性状盐害率明显增大,其中穗粒数和实粒数/穗的盐害率的变化程度较大;每个品系在4‰土壤盐度下的长势不同,受到抑制程度不同,品系间的耐盐性不同,4‰土壤盐度可以用来鉴定水稻品系的耐盐性能。The average value of each trait and the average value of salt damage rate of each trait of 18 stable strains were analyzed in 6 gradient soils with total salt content under the condition of fresh water irrigation.The results showed that the mean values of soil total salt concentration of 0.9‰and 2‰were not significantly different from each other,and the mean values of soil total salt concentration of 3‰and 4‰were significantly different,which could be used to identify the salt tolerance of various lines.It was difficult to produce economic yield with the soil total salt concentration of more than 5‰.The salt damage rate of the three soils increased significantly between 2‰,3‰and 4‰,among which the number of grains per ear and the number of grains per ear changed greatly.The growth potential and inhibition degree of each strain were different under the soil salinity of 4‰,and the salt tolerance of each strain was different.The soil salinity of 4‰could be used to identify the salt tolerance of rice strain.

关 键 词：水稻性状 盐害率 耐盐性 米质外观性状 

分 类 号：S511.034[农业科学—作物学]