Evaluation of dormancy breaking treatments for enhanced germination in Cotinus coggygria, Cornus mas and Viburnum lantana seeds

IF 1.7 4区农林科学 Q2 AGRONOMY

Seed Science and Technology Pub Date : 2022-01-01 DOI:10.15258/sst.2022.50.3.03

R. Moghimifam, A. R. Haghighi

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Abstract

Cotinus coggygria, Cornus mas and Viburnum lantana are among the most important species in Arasbaran forests in Northwest Iran. This study was carried out to determine which pre-treatments should be used to overcome dormancy of the seeds. Pre-treatments applied to the Cotinus coggygria seeds were submersion in concentrated (98%) sulphuric acid for 5, 10 and 30 minutes and cold stratification for 30, 60 and 90 days. Maximum germination (80%) was observed following submersion in concentrated (98%) sulphuric acid for 90 minutes and then cold stratification for 90 days. Increasing the concentration of exogenous gibberellin to 200 ppm improved germination of Cornus mas seeds to 85%; the effect of cold stratification was limited, with 57.5-60% germination after both 45 and 90 days stratification. Laboratory temperature followed by stratification was applied to Viburnum lantana seeds. The stratification did not significantly affect the germination. Laboratory temperature had a significant effect on breaking seed dormancy and promoted germination up to 70% with no cold treatment.

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破休眠处理对山茱萸、山茱萸和紫荚苋种子萌发促进作用的评价

Cotinus coggygria, Cornus mas和Viburnum lantana是伊朗西北部Arasbaran森林中最重要的物种。本研究旨在确定应采用何种预处理来克服种子的休眠。前处理方法为:在98%浓硫酸中浸泡5、10、30分钟，冷分层30、60、90天。在浓硫酸(98%)中浸泡90分钟，然后冷分层90天，最高发芽率为80%。将外源赤霉素浓度提高到200 ppm，山茱萸种子的发芽率提高到85%;冷分层的效果有限，45和90 d的发芽率均为57.5-60%。对紫花荚种子进行实验室温度后分层处理。分层对种子萌发无显著影响。实验室温度对打破种子休眠有显著影响，在不进行冷处理的情况下，种子发芽率可达70%。

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来源期刊

Seed Science and Technology 农林科学-农艺学

CiteScore

3.00

自引率

28.60%

发文量

审稿时长

>36 weeks

期刊介绍： Seed Science and Technology (SST) is an international journal featuring original papers and articles on seed quality and physiology related to seed production, harvest, processing, sampling, storage, genetic conservation, habitat regeneration, distribution and testing. A journal that meets the needs of researchers, advisers and all those involved in the improvement and technical control of seed quality. Published every April, August and December.