水盐胁迫下豌豆种子生理品质与幼苗生长

IF 1.4 4区农林科学 Q3 AGRICULTURAL ENGINEERING

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2020-02-01 DOI:10.1590/1807-1929/agriambi.v24n2p95-100

I. C. Pereira, H. C. R. Catão, F. Caixeta

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引用次数: 9

摘要

本试验旨在研究不同水盐电位条件下豌豆种子生理品质及幼苗发育。聚乙二醇6000，不同渗透电位的氯化钠和氯化钾溶液(0;-0.2;-0.4;-0.6;-0.8;-1.0和-1.2 MPa)，实验采用3 × 7因子排列。采用完全随机试验设计，重复4次，评价幼苗的生理品质和初始生长特性(初萌发数、终萌发数、强正常苗、上胚轴和主根长度、上胚轴干物质和根系干物质)。观察到的变量减少表明，模拟胁迫条件对幼苗的生理性能、发芽和初始生长都有负面影响。氯化钠和氯化钾溶液诱导的水和盐胁迫大于聚乙二醇6000诱导的应力。

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Seed physiological quality and seedling growth of pea under water and salt stress

The aim of this study was to evaluate seed physiological quality and initial pea (Pisum sativum) seedling development at different water and salt potentials. Polyethylene glycol 6000, sodium chloride and potassium chloride solutions with different osmotic potentials (0; –0.2; –0.4; –0.6; –0.8; –1.0, and –1.2 MPa) were used, and the experiment had a 3 × 7 factorial arrangement. The physiological quality and initial seedling growth characteristics (first germination count, final germination count, strong normal seedlings, epicotyl and taproot lengths, epicotyl dry matter, and root dry matter) were evaluated in a completely randomized experimental design, with four repetitions. Decreases in the observed variables showed that the simulated stress conditions negatively affected physiological performance, germination and initial seedling growth. The water and salt stresses induced by the sodium chloride and potassium chloride solutions were greater than the stress induced by polyethylene glycol 6000.

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来源期刊

Revista Brasileira de Engenharia Agricola e Ambiental Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

2.70

自引率

16.70%

发文量

114

审稿时长

3-8 weeks

期刊介绍： A Revista Brasileira de Engenharia Agrícola e Ambiental (Agriambi), periódico oficial da Asociación Latinoamericana y del Caribe de Ingeniería Agrícola (ALIA), é editada mensalmente, no formato eletrônico, pela Unidade Acadêmica de Engenharia Agrícola (UAEA) do Centro de Tecnologia e Recursos Naturais (CTRN) da Universidade Federal de Campina Grande (UFCG), destinando-se à divulgação de artigos científicos originais e inéditos, elaborados em Português, Inglês ou Espanhol. Com o auxílio de pareceres de Consultores, os artigos são aceitos ou não pela Equipe Editorial para publicação na Revista. A Agriambi aceita, também, a submissão de contribuições na modalidade de revisão de literatura.