山东农业科学2013，Vol.45Issue(4)：47-50,4.
盐胁迫对黄瓜种子萌发的影响
Effects of Different Salt Stress on Germination of Cucumber Seeds
摘要
Abstract
The salinization situation of greenhouse soil cultivated with cucumber in different years was studied in Shandong Province. The results showed that the total salt content in greenhouse soil was 2. 612 g/kg, which were 2.67 and 3.35 times of that in the open vegetable soil and field soil respectively. The most of salt ions were Mg2+ , Ca2+ , SO2-4 and NO3- , and the larger content of Mg2+ , Ca2+ and NO3- might be the main reasons for soil salinization and affecting cucumber growth. Based on the results, the experiment was carried out to study the effects of 5 different concentrations of K2SO4, MgS04, Mg(NO3)2, Ca(NO3)2, CaCl2 and MgCl2 on the germination of cucumber seeds. The results showed that Mg ( NO3) 2 had the most significant effects on the germination of cucumber seeds followed by Ca( NO3) 2, and MgSO4 had the least effect. With the increase of salt concentration, the germination energy, germination rate, relative germination rate and germination index decreased, while the relative injury rate of cucumber increased; all these indicators reached significant levels at the concentration of 100 mmol/L.关键词
黄瓜/盐胁迫/种子萌发Key words
Cucumber/Salt stress/Seed germination分类
农业科技引用本文复制引用
邱岸,曹齐卫,孙小镭,王秀峰..盐胁迫对黄瓜种子萌发的影响[J].山东农业科学,2013,45(4):47-50,4.基金项目
国家大宗蔬菜产业技术体系项目(CARS-25-G24)和"十二五"农村领域国家科技计划课题"黄瓜杂种优势利用与新品种选育"(2012BAD02B03-10) （CARS-25-G24）
