打破休眠方法对水松和金雀花发芽及幼苗生长的影响

IF 1.1 Q3 HORTICULTURE
M. Taghizadeh, F. Sajadi
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引用次数: 0

摘要

摘要种子休眠是一种长期存活的机制,对种子繁殖、扩散和植物种群的扩大具有重要的生态意义。蚕豆科植物种皮的不透水性是由于一层硬化细胞造成的。通过两个试验,研究了不同种子处理对角叶Cercis siliquatrum和Spartium junceum种子发芽参数和幼苗生长的影响。实验处理包括化学和热翻松处理,包括在C.siliquatrum中用沸水(2,5,10分钟)、H2SO4(30,60分钟)和GA(0,500和1000 mg L−1),以及在S.junceum中用沸水。结果表明,硫酸浸泡30分钟和2分钟的化学翻松是打破种子休眠的最有效方法。这些方法的应用促进了指标幼苗的最高值。根据发现的结果,研究表明,C.siliquetrum和S.junceum种子受到外壳休眠的影响,可以通过用硫酸和沸水进行化学热松土来去除外壳休眠。所获得的数据有助于更好地理解这些灌木的繁殖和幼苗观赏性的建立。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of dormancy breaking methods on germination of Cercis siliquastrum and Spartium junceum and seedling growth
Abstract Seed dormancy is a mechanism of long survival that is ecologically important for seed propagation and dispersal and the expansion of plant populations. The impermeability of the seed coat in the Fabaceae family is due to a layer of sclerotic cells. Two experiments were conducted to investigate the effect of different seed treatment on germination parameters and seedling growth in Cercis siliquastrum and Spartium junceum. Experimental treatments comprised of chemical and thermal scarification treatment consisting of boiling water (2, 5, 10 min), H2SO4 (30, 60 min) and GA (0, 500 and 1,000 mg L−1) in C. siliquastrum and boiling water (2, 5, 10 min), H2SO4 (2, 5 min) in S. junceum. The results presented here indicate that chemical scarification by soaking in sulfuric acid for 30 min and 2 min in C. siliquastrum and S. junceum, respectively were the most efficient methods to breaking the seed dormancy. The application of these methods promoted the highest values of indices seedlings. In the light of the found results, it revealed that C. siliquastrum and S. junceum seeds are affected by a coat dormancy, which can be removed by a chemical-thermal scarification with sulfuric acid and boiling water. The data obtained contribute to a better comprehension of propagation and establishment of these shrubs ornamental by seedling.
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来源期刊
Ornamental Horticulture
Ornamental Horticulture Agricultural and Biological Sciences-Horticulture
CiteScore
2.20
自引率
14.30%
发文量
30
审稿时长
50 weeks
期刊介绍: The Journal ORNAMENTAL HORTICULTURE - OH (Revista Brasileira de Horticultura Ornamental) is an official publication of the Brazilian Society for Floriculture and Ornamental Plants (Sociedade Brasileira de Floricultura e Plantas Ornamentais) - SBFPO Short title of the journal: ORNAM. HORTIC. This Journal aim to publish technical and scientific researches in floriculture, ornamental plants, landscaping and landscapes from members of this Society and others. The manuscripts can be submitted in portuguese, but publication must be in English language (U.S.). All the manuscripts submitted to Ornamental Horticulture (Revista Brasileira de Horticultura Ornamental) - OH must not have been submitted or published at the same time, partial or totally, to other journal. It is allowed to read, download, copy, distribute, print, search, or link to parts or the full texts to use them for any other lawful purpose. The reproduction of articles published in this journal is authorized, under the condition that the source is acknowledged.
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