Enhancement of seed germination of yarrow with gibberellic acid, potassium nitrate, scarification, or hydropriming

IF 1 Q3 AGRONOMY

Journal of Crop Improvement Pub Date : 2021-08-21 DOI:10.1080/15427528.2021.1968553

Somayeh Rohani Nejad, Z. E. Bistgani, A. Barker

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引用次数: 1

Abstract

ABSTRACT Poor germination and the length of time required for the growth of seedlings appropriate for planting in the farm affect the cultivation of medicinal plants such as yarrow (Achillea millefolium L). This study investigated the abilities of different concentrations of gibberellic acid (GA3) and potassium nitrate (KNO3), mechanical scarification, and hydropriming to improve seed germination and dormancy release in yarrow. Seeds were germinated on filter paper in Petri dishes and supplemented with 0, 100, 200, 400, or 800 mg L−1 GA3; 0%, 0.2%, 0.5%, 1.0%, or 2.0% w/v KNO3; 0, 24, or 48 h of hydropriming; and mechanical scarification. Seed priming with GA3 (800 mg L−1) or 1% KNO3 at 48 h priming time improved the mean daily germination. Application of 1% KNO3 had the highest seed germination around 91%. Use of 0.5% KNO3 in 48 h priming time increased seedling length approximately 52% compared with unprimed seeds. Combinations of scarification and hydropriming increased germination. The use of priming with KNO3 at 48 h priming time was effective in improving seed germination.

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赤霉素酸、硝酸钾、划伤或水浸对蓍草种子萌发的促进作用

摘要:洋蓍(Achillea millefolium L)种子发芽率低和适宜种植的幼苗生长时间长影响着洋蓍(Achillea millefolium L)等药用植物的栽培。本研究探讨了不同浓度的赤霉素(GA3)和硝酸钾(KNO3)、机械切割和水浸对洋蓍种子萌发和休眠释放的影响。种子在滤纸上发芽，并在培养皿中添加0、100、200、400或800 mg L−1 GA3;0%、0.2%、0.5%、1.0%或2.0% w/v KNO3;0、24或48小时的氢浸;还有机械划伤。GA3 (800 mg L−1)或1% KNO3在48 h的启动时间提高了平均日发芽率。施用1% KNO3的种子发芽率最高，约为91%。与未处理种子相比，在48 h内施用0.5% KNO3可使幼苗长度增加约52%。划伤和水浸联合处理提高了萌发率。诱导时间为48 h的KNO3对种子萌发有促进作用。

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来源期刊

Journal of Crop Improvement Multiple-

CiteScore

3.30

自引率

7.70%

发文量

期刊介绍： Journal of Crop Science and Biotechnology (JCSB) is a peer-reviewed international journal published four times a year. JCSB publishes novel and advanced original research articles on topics related to the production science of field crops and resource plants, including cropping systems, sustainable agriculture, environmental change, post-harvest management, biodiversity, crop improvement, and recent advances in physiology and molecular biology. Also covered are related subjects in a wide range of sciences such as the ecological and physiological aspects of crop production and genetic, breeding, and biotechnological approaches for crop improvement.