WATER AND SALT STRESSES ON GERMINATION OF COWPEA ( Vigna unguiculata cv. BRS Tumucumaque) SEEDS

Author:

FERREIRA AUREANE CRISTINA TEIXEIRA1,FELITO RICARDO ADRIANO1,ROCHA ADRIANO MALTEZO DA1,CARVALHO MARCO ANTONIO CAMILLO DE1,YAMASHITA OSCAR MITSUO1

Affiliation:

1. Universidade do Estado de Mato Grosso, Brazil

Abstract

ABSTRACT The objective of this work was to evaluate seeds of cowpea, cultivar BRS Tumucumaque, subjected to different water stresses induced by polyethylene glycol (PEG-6000) and mannitol and different salt stresses induced by NaCl and CaCl2 solutions. The water and salt stresses was evaluated in laboratory using completely randomized experimental designs in 2x6 factorial arrangements, with six osmotic potentials (0.0, -0.2, -0.4, -0.6, -0.8 and -1.0 MPa) and two stress inducers for each experiment, with four replications of 50 seeds. The percentage of germination, germination speed index, root and shoot lengths and seedling fresh weight were evaluated at the tenth day (end of the evaluation period). The simulated water stress showed effects on the cowpea seed germination and seedling initial growth by decreasing the rates of the variables evaluated, which had greater effect in treatments with PEG-6000. The salt stress induced by NaCl showed greater effect on the variables evaluated than that induced by CaCl2, due to the sodium toxicity in the salt chemical composition.

Publisher

FapUNIFESP (SciELO)

Subject

General Agricultural and Biological Sciences

Reference27 articles.

1. Cultivo de feijão-caupi em Latossolos sob o efeito residual da adubação fosfatada;BEZERRA M. A. F.;Revista Caatinga,2014

2. Efeito da disponibilidade hídrica do substrato na qualidade fisiológica de sementes de feijão;BRAGA L. F.;Revista Brasileira de Sementes,1999

3. Regras para Análise de Sementes,2009

4. Feijão-caupi: alternativa sustentável para os sistemas produtivos;CASTELLETTI C. H. M.;Pesquisa Agropecuária Pernambucana,2013

5. Estresse hídrico com diferentes osmóticos em sementes de feijão e expressão diferencial de proteínas durante a germinação;COELHO D. L. M.;Acta Scientiarum Agronomy,2010

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3