不同化学处理对大豆幼苗活力和氧化反应的影响

IF 1.1 4区 农林科学 Q3 AGRONOMY Journal of Seed Science Pub Date : 2021-05-14 DOI:10.1590/2317-1545V43247033
Maíra Paes Lacerda, R. C. Umburanas, K. V. Martins, M. A. Rodrigues, K. Reichardt, D. Dourado-Neto
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引用次数: 2

摘要

摘要/ Abstract摘要:不同种子化学处理对大豆种子萌发、活力和胁迫代谢属性的影响有待进一步研究。本研究的目的是评价不同种子化学处理对大豆幼苗活力、萌发和生化特性的影响。采用完全随机试验设计,8个处理,4个重复。评估种子萌发、活力(首次萌发计数、冷试验、加速老化、出苗速度指数)、幼苗生物量、酶活性和SVIS®分析。评价处理与对照在种子萌发和活力方面无显著差异。通过图像分析,种子化学处理的幼苗均匀性指数等于或高于对照,而活力和生长指标没有差异。幼苗的茎部生物量随种子化学处理有降低的趋势,根系生物量无差异。与对照相比,种子化学处理使幼苗过氧化氢活性提高了6% ~ 40%;过氧化氢酶活性较对照提高了87 ~ 184%;对脂质过氧化无影响。总体而言,种子化学处理有利于大豆幼苗的生理活性,提高了抗氧化代谢活性。所有的种子化学处理都没有植物毒性。
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Vigor and oxidation reactions in soybean seedlings submitted to different seed chemical treatments
Abstract: The interaction of different seed chemical treatment with seedlings germination, vigor and stress metabolism attributes needs to be better understood in soybean crop. The objectives of this study were to evaluate seed vigor, germination, and biochemical attributes of soybean seedlings as a function of different seed chemical treatments. A completely randomized experimental design was adopted, with 8 seed treatments and 4 replicates. Seed germination, vigor (first germination count, cold test, accelerated aging, emergence speed index), seedling biomass, enzimes activity and SVIS® analysis were evaluated. The evaluated treatments had no difference relative to control on seed germination and vigor. Through image analysis, the seedling uniformity index were equal or higher than control with the seed chemical treatment, while vigor and growth indexes had no difference. Shoot biomass of seedlings tends to decrease with seed chemical treatments, and root biomass had no difference. Seed chemical treatments increased the activity of hydrogen peroxide in seedlings by 6 to 40% compared to control; the activity of catalase increased by 87 to 184% compared to control; and no effect was observed in lipids peroxidation. Overall, seed chemical treatment benefited the physiological activity of soybean seedlings and improved antioxidant metabolism activity. None of the seed chemical treatments used were phytotoxic.
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来源期刊
Journal of Seed Science
Journal of Seed Science Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
2.00
自引率
30.00%
发文量
28
审稿时长
12 weeks
期刊介绍: From 2017 the Journal of Seed Science (JSS) will circulate online version only. Original scientific studies and communications, not yet published or submitted to another journal for publication and written in Portuguese or English, will be accepted for publication. For manuscripts submitted in English, the authors should provide an adequated version. The SCIENTIFIC COMMUNICATION is a category of scientific manuscript which describes a technique, an equipment, new species or observations and surveys of limited results. It has the same scientific rigor as the “Scientific Articles” and the same value as a publication. The classification of a manuscript as a SCIENTIFIC COMMUNICATION is based on its content and scientific merit but it can be a preliminary study, simple and not definitive on a certain subject, with publication justified by its uniqueness and contribution to the area. The Editorial Board of the JSS may invite leading authors of recognized reputation to compose specific Review Articles covering topics of their specialization that will convey to the scientific community the state-of-the-art knowledge related to the specific theme.
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