Outcomes of water deficit stress on the physiological quality of soybean seeds

IF 1.1 4区农林科学 Q3 AGRONOMY

Journal of Seed Science Pub Date : 2022-01-01 DOI:10.1590/2317-1545v44260716

Tiago Darlan Grahl, A. P. Rockenbach, A. Casassola

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引用次数: 0

Abstract

Abstract: This study aimed to compare the physiological seed quality of soybean cultivars produced under or without water deficit stress. Seed samples of three soybean cultivars produced in the 2019/2020 crop season were collected in a rural property and in a company that obtains the cultivars. In the rural property, the seeds were produced under water deficit stress and high temperatures during the crop’s and were characterized by the presence of greenish seeds. In the company that obtains the cultivars, the sample consisted of a certified seed lot produced under normal rainfall and temperature conditions, without greenish seeds. Germination, average germination time, germination speed index, average germination speed, the number of normal and abnormal seedlings, the seedling height and dry weight, the root evaluations (length, surface area, volume, average diameter and dry mass) and the total seedling dry mass were also evaluated. Soybean seeds produced under water deficit stress showed a reduction in physiological quality directly proportional to the percentage of greenish seeds present in each seed lot. The occurrence of water deficit stress on the soybean in the reproductive and maturation stages negatively impacts the soybean crop installation in the subsequent season due to the low physiological seed quality.

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水分亏缺胁迫对大豆种子生理品质的影响

摘要:本研究旨在比较水分亏缺胁迫和非水分亏缺胁迫下大豆品种的生理种子品质。2019/2020作物季节生产的三种大豆品种的种子样本在农村财产和获得该品种的公司中收集。在农村地区，种子是在作物生长期间的水分亏缺胁迫和高温下生产的，其特点是种子呈绿色。在获得品种的公司，样品包括在正常降雨和温度条件下生产的认证种子批次，没有绿色种子。对发芽率、平均发芽时间、发芽速度指数、平均发芽速度、正常和异常苗数、苗高和干重、根系评价(长、比表面积、体积、平均直径和干质量)和幼苗总干质量进行了评价。在水分亏缺胁迫下生产的大豆种子，其生理品质的下降与每批种子中出现绿色种子的百分比成正比。大豆在生育期和成熟期发生水分亏缺胁迫，导致籽粒生理品质较低，对后续季节的作物安装产生不利影响。

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.