辣椒不同种质资源种子萌发期耐盐性评价

Evaluation of salt resistance of different germplasm resources of pepper at different germination stages

为了研究盐性土壤对辣椒种质资源的影响,试验通过对62份不同辣椒种质资源进行研究,按1∶1∶1的比例将NaHCO3、NaCl、Na2SO4配成浓度为100 mol/L的混合液,测试在该浓度下辣椒种子的发芽势(GE)、相对发芽势、发芽率(GR)、相对发芽率、发芽指数(GI)、相对发芽指数、相对盐碱害率,研究其对不同辣椒种质资源种子萌发的影响。采用隶属函数值对辣椒种质资源进行耐盐性评价。结果表明:62份辣椒资源中有10份耐盐性极强,10份资源表现为不耐盐、其余为中度耐盐。资源87号自交混收(ZY16-15)、18号自交混收(朗悦2号F2)、8-1号自交混收(中期库猪大肠)、70×62、121-7自交混收、65号自交混收(u014-2)、96号自交混收(D77)、97号自交混收(D78)、37号自交混收(66-1)、K20号自交混收(58号)10份资源表现为耐盐性极强;而26号自交混收(华混5-5)、K6(23700)、62-6、k15(60号)、39号自交混收(2-2)、K24(瑞崎)、80号自交混收(塔拉多)、K2(11号)、K11、K17(57号红牛)10份资源表现为不耐盐。

In order to study the influence of different soil salinities on pepper germplasm resources,62 different pepper germplasm resources were tested for germination potential(GE),relative germination potential,germination rate(GR),relative germination rate,germination index(GI),relative germination index,following exposure to 100 mol/L NaHCO3,NaCl or Na2SO4 mixtures.Using EXCEL and membership function values to evaluate the salinity tolerance of pepper germplasm resources,the results showed that 10 of the 62 pepper resources were highly salt resistant,10 of them were not salt resistant,and the rest were moderately salt resistant.Radius 87 mixing charge(ZY16-15),18 radius mixing charge(langyue 2 F2),8-1 radius mixing charge(mid-term pig intestine),70×62,121-7 radius mix,the radius 65 accept(u014-2),96,the radius mixing charge 97(D77),the radius mixing charge(D78),37 radius mixing charge(66-1),K20 radius mixing charge(58)were characterized by strong salt resistance.On the other hand,radius 26 mixing charge(5-5),K6(23700),62-6,k15(60),39 radius mixing charge(2-2),K24(battery),no.80 the radius(tara),K2(11),K11,K17(57 red bull)were characterized as not salt resistant.