1-萘乙酸钾盐促进黑桫椤茎条扦插生根

IF 3.5 3区生物学 Q1 PLANT SCIENCES

Rhizosphere Pub Date : 2025-10-02 DOI:10.1016/j.rhisph.2025.101203

Youn Hwa Son , Suejin Park , Chung Ho Ko , Mengmeng Gu , Seung Youn Lee

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引用次数: 0

摘要

黑桫椤因其药用和观赏价值而受到重视。然而，由于过度捕捞和栖息地破坏，它在韩国被列为濒危物种。本研究旨在建立一种高效的椭圆花茎插枝无性繁殖方案。采用基浸或叶面喷施的方法，对紫酮（0.4% 1-萘乙酸）和吲哚-3-丁酸（K-IBA）和1-萘乙酸（K-NAA）的钾盐进行了试验。6周后，2000 mg L−1 K-NAA处理的扦插生根性能最佳，生根率为93.3%，每根17.5根，根长55.4 mm，鲜根质量（92.9 mg）和干根质量（8.8 mg）最高。建议在2000 mg L−1 K-NAA中浸泡1 min，是黄芪大规模繁殖的最有效处理。优化后的繁殖方法将有利于椭圆花的保护和观赏利用。

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Potassium salt of 1-naphthaleneacetic acid promotes rhizogenesis in Amsonia elliptica stem cuttings

Amsonia elliptica is valued for its medicinal and ornamental potential. However, it is listed as an endangered species in South Korea due to overharvesting and habitat destruction. This study aimed to develop an efficient protocol for mass vegetative propagation of A. elliptica using stem cuttings. We tested Rootone (0.4 % 1-naphthylacetic acid) and potassium salts of indole-3-butyric acid (K-IBA) and 1-naphthaleneacetic acid (K-NAA) applied via basal dip or foliar spray. After six weeks, cuttings treated with 2000 mg L⁻¹ K-NAA showed the best rooting traits, with 93.3 % rooting, 17.5 roots per cutting, and 55.4 mm root length, along with the highest fresh (92.9 mg) and dry root mass (8.8 mg). Dipping cuttings in 2000 mg L⁻¹ K-NAA for 1 min is recommended as the most effective treatment for large-scale propagation of A. elliptica. This optimized propagation method will facilitate the conservation and ornamental use of A. elliptica.

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来源期刊

Rhizosphere Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

5.70

自引率

8.10%

发文量

155

审稿时长

29 days

期刊介绍： Rhizosphere aims to advance the frontier of our understanding of plant-soil interactions. Rhizosphere is a multidisciplinary journal that publishes research on the interactions between plant roots, soil organisms, nutrients, and water. Except carbon fixation by photosynthesis, plants obtain all other elements primarily from soil through roots. We are beginning to understand how communications at the rhizosphere, with soil organisms and other plant species, affect root exudates and nutrient uptake. This rapidly evolving subject utilizes molecular biology and genomic tools, food web or community structure manipulations, high performance liquid chromatography, isotopic analysis, diverse spectroscopic analytics, tomography and other microscopy, complex statistical and modeling tools.