浸种温度及时间对小根蒜种子发芽的影响

目的]研究浸种温度及时间对小根蒜(Allium macrostemon Bunge)种子发芽的影响,确定适合其发芽的温度和用水浸种的时间。方法]采用普通培养皿发芽法。浸泡温度试验中小根蒜种子在8、14、22、26℃下用蒸馏水浸泡40 min;浸泡时间试验中小根蒜种子分别于22℃下用蒸馏水浸泡10、20、30、40、50、60 min,不浸泡种子为对照(CK)。结果]影响小根蒜种子发芽的因素主要是温度。14℃有利于小根蒜种子发芽,低于或高于14℃均不利于其种发芽。浸种20 min以上都能提高小根蒜种子的发芽率,而浸种40 min的小根蒜种子发芽率是最高的。结论]在14℃下用蒸馏水浸种40 min后小根蒜种子发芽速度最快。

Effects of Soaking Temperature and Soaking Time on Germination of Allium macrostemon Bunge Seeds

Objective] The purpose was to study the effects of soaking temperature and soaking time on germination of Allium macrostemon Bunge seeds,and confirm its suitable germination temperature and time.Method] The common culture dish was used to culture Allium macrostemon Bunge seeds.They were soaked 40 min in distilled water under 8,14,22,and 26 ℃ in soaking temperature test,and soaked 20,30,40,50,and 60 min under 22 ℃ in soaking time test,no soaking seeds were chose as control.Method] The key factor of influencing germination of Allium macrostemon Bunge seeds was temperature.The temperature of 14 ℃ was in favor of Allium macrostemon Bunge seeds germination,while less than or more than 14 ℃ were not in favor.Soaking 20 min in distilled water could all improved Allium macrostemon Bunge seeds germination rate,and it was the highest when soaking time was 40 min.Conclusion] Allium macrostemon Bunge seeds germination rate is the biggest when it is soaking 40 min in distilled water under 14 ℃.