文献类型： 会议论文

第一作者： LIU Jian-hui

作者： LIU Jian-hui ¹ ;

作者机构： 1.Horticulture Sub-academy, Heilongjiang Academy of Agricultural Sciences Harbin 150069, China

关键词： Cucumber;Seed germination stage;Low-temperature tolerance;Appraisal indexes

会议名称： Research and progress of modern agro-biotechnology

主办单位：

页码： 201-204

摘要： Eight varieties were used to study the appraisal methods and indexes of low-temperature tolerance of cucumber at seed germination stage. The results showed that the germination index- the relative elongation rate of radicle shows the difference in low-temperature tolerance at 15 ±0.5°C compare to that at room temperature (25 ±0. 5°C ). The optional identification stage was during 36-48 h after seed soaking. The application of germinating seeds after seed soaking for 36 h suggested that the elongation rate of radicle during resuming period after 24 h (2. 5 ±0. 5°C ) treatment reflected the low-temperature tolerance of tested variety. Seed germination index, and the relative elongation of radicle in the test constituted an appraisal system thatcould explore cucumber low-temperature tolerance correctly.

分类号： S188