甘薯(Ipomoea batatas, L.)休眠及生理品质评价林。通过图像分析

IF 1.1 4区 农林科学 Q3 AGRONOMY Journal of Seed Science Pub Date : 2022-01-01 DOI:10.1590/2317-1545v44261490
Soryana Gonçalves Ferreira de Melo, V. C. A. Andrade Júnior, R. Pires, Dayliane Bernardes de Andrade, R. A. Santana, M. C. Nery
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引用次数: 0

摘要

摘要/ Abstract摘要:甘薯种子的萌发需要克服休眠,这给生理潜能的评估带来了困难。本研究的目的是定义一种方法来克服甘薯种子的休眠,并使用图像分析来确定其物理和生理品质。选用四种基因型的甘薯种子,分别为UFVJM-5、UFVJM-22、UFVJM-38和UFVJM-65。为了克服休眠,分别进行了98% H2SO4化学刻蚀10分钟和20分钟、95℃热水刻蚀10分钟和20分钟、电动研磨机机械刻蚀等试验。为了评价种子的物理质量,对种子进行了x射线分析,并将其分为完整种子、空种子和畸形种子。使用GroundEye®系统,定量分析了颜色优势度、种子几何形状和幼苗长度的特征。用研磨机和98%硫酸浸泡20分钟,可以有效地打破甘薯种子的休眠状态。甘薯基因型之间存在遗传差异,促进了不同群体的形成。种子的颜色和几何特征对基因型的遗传多样性贡献最大。
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Dormancy and evaluation of the physical-physiological quality in sweet potato [Ipomoea batatas (L.) Lam.] seeds by image analysis
Abstract: For the germination of sweet potato (Ipomoea batatas) seeds to occur, it is necessary to overcome dormancy, which makes it difficult to assess their physiological potential. The aim of this research was to define a methodology to overcome the dormancy of sweet potato seeds and use image analysis to determine their physical and physiological quality. Four genotypes of sweet potato seeds were used, namely UFVJM-5, UFVJM-22, UFVJM-38 and UFVJM-65. To overcome dormancy, chemical scarification with 98% H2SO4 for 10 and 20 minutes, hot water at 95 °C for 10 and 20 minutes, and mechanical scarification with electric grinder were tested. To evaluate the physical quality, the seeds were analyzed with X-rays and classified as intact, empty and malformed seeds. Using the GroundEye® system, the characteristics of color dominance, seed geometry and seedling length were quantified. Treatments with mechanical scarification with grinder and 98% sulfuric acid, for an immersion period of 20 minutes, are efficient to break dormancy in sweet potato seeds. There are genetic divergences between sweet potato genotypes, promoting the formation of different groups. The characteristics of color and geometry of the seeds are the ones that most contribute to genetic diversity of genotypes.
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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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