Viability and performance of wheat seedlings after artificial seed aging

IF 1.1 4区农林科学 Q3 AGRONOMY

Journal of Seed Science Pub Date : 2022-01-01 DOI:10.1590/2317-1545v44261925

M. S. Padilha, C. Coelho, N. Ehrhardt-Brocardo

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引用次数: 1

Abstract

Abstract: Seed deterioration is a continuous irreversible process that affects cell structures and molecules and compromises the physiological quality of seeds. This study aimed to assess the effect of artificial wheat seed deterioration on germination and seedling performance. The TBIO Toruk wheat cultivar was used, with seeds submitted to different artificial aging times (2, 3, 4, 5, 6 and 7 days). The original and aged seed lots were submitted to laboratory germination and seedling performance tests (seedling length, seedling dry weight and endosperm dry weight). Alpha-amylase activity, electrical conductivity and the oxidative stress marker malondialdehyde were quantified. The exudate resulting from the electrical conductivity test was separated to quantify total soluble sugars, soluble proteins and phosphorus. The deterioration process increased lipid peroxidation and decreased initial alpha-amylase activity. During germination, the most deteriorated lots exhibited greater solute loss and lower alpha-amylase synthesis capacity. The lots with the greatest deterioration showed reduced viability and produced worse-performing seedlings.

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小麦种子人工老化后幼苗活力和生长性能的研究

摘要种子变质是影响种子细胞结构和分子结构，损害种子生理品质的不可逆过程。研究了小麦种子人工变质处理对种子萌发和幼苗生长性能的影响。采用TBIO Toruk小麦品种，将种子进行不同的人工老化时间(2、3、4、5、6和7 d)。将原始和老化种子批提交实验室进行萌发和幼苗性能测试(幼苗长度、幼苗干重和胚乳干重)。测定α -淀粉酶活性、电导率和氧化应激标志物丙二醛。将电导率试验所得的渗出液分离，定量测定总可溶性糖、可溶性蛋白和磷。变质过程增加了脂质过氧化，降低了初始α -淀粉酶活性。在萌发过程中，腐坏最严重的批次表现出较大的溶质损失和较低的-淀粉酶合成能力。退化最严重的地块表现出生存力降低，幼苗表现较差。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Seed Science Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

2.00

自引率

30.00%

发文量

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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