Testes de vigor de resistência a estresse e bioquímicos em sementes de feijão caupi – uma revisão

Abstract

Vigna unguiculata L. or cowpea beans, as it is commonly known, is one the main food sources in a lot of countries, stand out Brazil. For implementation of crops it is necessary to use seeds with high physiological quality, which understands the germination and the vigor. Between the tests of stress the best known are accelerated aging, controlled deterioration, cold test and low temperature germination. Biochemical tests stand out the electrical conductivity, potassium and tetrazolium leaching, which assess the condition of the seed. Therefore, the vigor tests make it possible to classify seed lots at different vigor levels. Represent a great help for seed producing companies, who need to make storage decisions, marketing and disposal; Even if the seeds meet the minimum germination percentage required by the Ministry of Agriculture livestock and supply to be marketed. The present work aimed to carry out a literature review on scientific articles published in the period from 2011 to 2021, regarding vigor tests, accelerated aging, electrical conductivity and tetrazolium in cowpea seeds. Graphs were drawn up regarding expressions and keywords: tetrazolium in cowpea seeds; electrical conductivity in cowpea seeds and accelerated aging in cowpea seeds; electrical conductivity in Vigna unguiculata; accelerated aging in Vigna unguiculata; tetrazolium in Vigna unguiculata and cowpea in seed vigor tests, considering the database of Google Academic , Web of Science and Scielo, year of publication and languages ( Portuguese, English and Spanish). The database that presented the most published articles was Google Academic, as it is a simple and easily accessible platform, different from platforms Scielo and Web of Science. On the occasion of the evaluation of cowpea seeds will be subjected to accelerated ageing vigor tests, electrical conductivity and the tetrazolium, one should be aware that there are several factors that influence the results; genotype and aspects of the methodology itself, but also the intrinsic seed conditions and pre- and post-harvest management.