摘要
试验选用4种浸种剂:水、0.5mmol·L^(-1)水杨酸、2.0%硝酸钾溶液、2.0%硝酸钙溶液,分别对草地早熟禾品种优异(Poa pretensis‘Merit’)进行100mmol·L^(-1) NaCl盐胁迫下不同时间的浸种-回干处理。对幼苗鲜重等相关指标进行测定,结果表明浸种-回干对提高草地早熟禾耐盐性强弱依次为:2.0%硝酸钙溶液浸种回干8h、2.0%硝酸钾溶液浸种回干8h、0.5mmol·L^(-1)水杨酸浸种回干8h。
Four soaking agents were chosen： H20 , 0. 5 mmol. L-1 Salicylic acid （SA）, 2. 0%KNO3, 2.0%Ca（NO3）2 Different soaking-dehydration combination treatments were applied to the seeds of Kentucky bluegrass cultivar ‘Merit＇. The treated seeds were geminated under salt stress （100 mmol · L-1 NaC1）. Fresh weight and related indicators were measured and the results showed that soaking agent and dehydration time affected salt tolerance of Kentucky bluegrass. And the order of the effect was： 2.0% Ca（NOa）2 soaking-8 h dehydration, 2.0%KNO3 soaking-8 h dehydration and then 0.5 mmol· L -1 SA soa- king-8 h dehydration.
出处
《草地学报》
CAS
CSCD
北大核心
2017年第1期199-203,共5页
Acta Agrestia Sinica
基金
国家牧草产业技术体系"优质牧草产品标准化生产关键技术"(CARS-35-01A)
国家燕麦产业技术体系"燕麦加工利用"(CARS-08-D1)资助
关键词
草地早熟禾
浸种剂
回干时间
种子发芽
耐盐性
Poa pratensis
Seed soaking agents
Seed dehydration time
Seed germination
Salt tolerance
