摘要
目的:探究两种赤霉素处理方式、不同赤霉素浓度对盐爪爪种子萌发指标的影响,旨在得出不同因素对盐爪爪萌发的作用效果,寻求提高盐爪爪萌发的最适条件。方法:采用培养皿纸上萌发法,统计种子萌发情况,计算萌发率、萌发势、萌发指数等指标。结果:(1)在提前浸种组内,随着赤霉素浓度的增加,盐爪爪种子的萌发率、萌发势、萌发指数3项萌发指标也随之增加,但萌发指标小于对照组;(2)在每日滴加组内,赤霉素浓度的变化对盐爪爪种子的萌发不具有显著影响,萌发指标均高于对照组;(3)赤霉素浓度在200~1000 mg/L之间时,每日滴加的处理方式下盐爪爪种子萌发率在92.22%~98.89%之间,提前浸种组处理方式下盐爪爪种子萌发率在56.67%~80.00%之间,前者显著高于后者。结论:(1)在提前浸种组内,低浓度的赤霉素不具有促进盐爪爪种子萌发的作用;(2)在每日滴加组内,200~1000 mg/L的赤霉素对盐爪爪种子的萌发指标均具有促进作用;(3)赤霉素浓度在200~1000 mg/L之间时,每日滴加的方式更适用于盐爪爪种子的萌发。
Objective:To explore the effects of two different gibberellin treatment methods and gibberellin concentrations on the germination indexes of Kalidium foliatum seeds,with the aim of obtaining the effects of different factors on the germination of K.foliatum and seeking the most suitable conditions to improve the germination of K.foliatum seeds.Methods:The germination status was recorded and measured using the culture dish-filter paper method,and indicators such as germination rate,germination potential,and germination index were calculated.Results:(1)In the early soaking group,with the increase of gibberellin concentration,the germination rate,germination potential and germination index of K.foliatum seeds also increased,showing a positive correlation,but the germination index was smaller than that of the control group.(2)In the daily drip group,the change of gibberellin concentration had no significant effect on the germination of K.foliatum seeds,and the germination indexes were higher than those of the control group.(3)When the concentration of gibberellin was between 200 mg/L and 1000 mg/L,the germination rate of K.foliatum seeds was between 92.22%and 98.89%under the daily drip,treatment,while the germination rate of K.foliatum seeds was between 56.67%and 80%under the early soaking treatment,with the former significantly higher than the latter.Conclusion:(1)In the early soaking group,low concentrations of gibberellin did not promote the germination of K.foliatum seeds.(2)In the daily drip group,200~1000 mg/L gibberellin had a promoting effect on the germination of the K.foliatum seeds.(3)When the concentration of gibberellin was between 200~1000 mg/L,the daily drip method was more suitable for the germination of K.foliatum seeds.
作者
拉本
胡娟
张旭萍
刘强
王锦
胡笑玫
La Ben;Hu Juan;Zhang Xuping;Liu Qiang;Wang Jin;Hu Xiaomei(College of Life Science,Qinghai Normal University,Xining 810008,China)
出处
《中国野生植物资源》
CSCD
2024年第5期63-67,76,共6页
Chinese Wild Plant Resources
基金
青海省应用基础研究项目(2020-ZJ-750)。
关键词
赤霉素
处理方式
盐爪爪
种子萌发
Gibberellin
Treatment method
Kalidium foliatum
Seed germination
