不同大豆品种种子萌芽期的耐盐性  

Salt Tolerance Selection of Ten Soybeans in Germination Period

作　　者：刘太林[1] 杨静慧[1] 穆俊丽[2] 张伟玉[3] 哈玲津[4] 桂毓[1] 朱文碧[4] 杜长城[5] 陈月[5] 

机构地区：[1]天津农学院园艺系,天津300384 [2]西北农林科技大学园艺学院,陕西杨凌712100 [3]天津农学院机电工程系,天津300384 [4]天津农学院中心实验室,天津300384 [5]天津市林业局,天津300384

出　　处：《大豆科学》2009年第5期837-841,共5页Soybean Science

基　　金：天津市科技支撑计划重点资助项目(072CKFNC01100;08ZCKFNC01200);天津市农业科技成果转化与推广资助项目(0504018);天津农学院科学研究发展基金计划资助项目(2007)

摘　　要：对10个栽培品种大豆种子进行不同盐浓度处理(3、6、9、12、15、18 g.L-1)后,统计了种子的发芽率、相对发芽率、发芽势、相对胚根长度,分析了其耐盐浓度、耐盐半致死浓度、耐盐极限浓度和各指标隶属函数,综合评价了各品种的耐盐性。随着盐浓度的增加,品种间的发芽势、发芽率和胚根长度都呈下降趋势,品种间存在显著差异。当NaC l浓度增加到9 g.L-1时,各品种的发芽率、发芽势差异最大。在12 g.L-1的盐浓度下品种间相对胚根长度差异最大。各品种中耐盐浓度最高的为绥农10(可耐12 g.L-1的盐),其次为抗线4和飞龙1(可耐9 g.L-1的盐)。耐盐半致死浓度最大的品种为绥农10。耐盐极限浓度最高的也是绥农10。综合分析各指标抗盐隶属值,各大豆品种的耐盐性强弱顺序依次为:绥农10>抗线4>丰豆1>龙选1>合丰55>飞龙1>垦丰16>绥农14>黑农48>黑农44。To study the salt tolerance of soybean in germination period. Seeds of ten soybean varieties were treated with different concentration of NaCI solution （ 3,6,9,12,15 and 18 g · L^ - 1 , respectively ） , the germanation related indexes such as germination rate（GR） ,relative germination rate（RGR） ,germination potential（GP） ,and relative radicel length（RRL） were calculated. The salt - tolerance concentration, semi - lethal salt concentration, limit concentration of salt tolerance and the membership function of each indicator were analyzed. With the increasing of NaCI concentration,all the indicators declined and the differences between varieties were obvious. When NaCI concentration increased to 9 g · L^- 1, all varieties differenced most in GP and GR. The RRL among varieties varied most in the salt concentration 12 g· L^- 1. Suinong 10 had highest salt - tolerance concentration of 12 g · L^- 1 NaCl, followed by Kangxian 4 and Feilong 1 （9 g · L^- 1 ）. Suinong 10 also had highest limit concentration of salt tolerance of 18 g · L^- 1 NaCl. Comprehensive analysis of the membership function indicators of ten varieties showed the salt tolerance strength was in the order：Suinong 44 〉 Kangxian 4 〉 Fengdou 1 〉 Longxuanl 〉 Hefeng 55 〉 Feilong 1 〉 Kenfeng 16 〉 Suinong 14 〉 Heinong 48 〉 Heinong 44.

关 键 词：大豆品种 耐盐浓度 耐盐半致死浓度 耐盐极限浓度 耐盐性 

分 类 号：S565.1[农业科学—作物学]