Germination and initial growth of cowpea cultivars under salinity stress
Journal Title: Revista Verde de Agroecologia e Desenvolvimento Sustentável - Year 2017, Vol 12, Issue 2
Abstract
The use of varieties tolerant to salinity stress conditions has been essential for the crops establishment in are asthat experience with this problem. The aim of this study was to evaluate the germination process and early growth of seedlings of four varieties of cowpea under different levels of salinity. The seeds of BRS Tapaihum, BRS Pujante, BRS Acauã and BRS Marataoã were sown in foam, arranged in tray sand watered with the following NaCl concentrations: 0,50, 100, 150 and 200mM. The analized variables were Percentage of Germination, Emergence Speed Index, mean time, Relative Germination frequency, shoot length and water content of seedling. The cowpea varieties showed loss of germination capacity from 50 mM NaCl concentration. It was also verified that the salinity incidence promoted a decrease of the speed with which the varieties realized their biochemical, physiological, morphogenic events necessary to the process of germination and formation of the new plants.
Authors and Affiliations
Daniela Siqueira Coelho, José Aliçandro Bezerra da Silva, Russaika Lírio Nascimento, osenara Daiane de Souza Costa, Tales Xavier Seabra
Keywords
Related Articles
- EP ID EP253815
- DOI 10.18378/rvads.v12i2.4419
- Views 93
- Downloads 0
Quality of water bodies in the extreme south of Bahia, Brazil
Water is a natural resource indispensable to life, has enormous economic, environmental and social value, and it is fundamental to the survival of humans and ecosystems on our planet. Surface water must meet standards of...
Identification of families F2:3 of homozygous tomatoes resistant to Ralstonia pseudosolanacearum e Ralstonia solanacearum
The objective of this work was to identify homozygous F2:3 tomato families resistant to Ralstonia pseudosolanacearum and Ralstonia solanacearum. Two experiments were carried out under greenhouse conditions at the Federal...
Evaluation of the main causes of post-harvest losses of vegetables sold in Santarém, Pará state
Vegetables are subject to various types of damage after harvest due to inadequate handling and storage, disease and mechanical injury. The objective of this work was to carry out a survey of the main causes of post-harve...
Progeny coriander resistant root-knot nematode
Coriander is a important vegetable crop in Brazil, being widely consumed as a condiment and cultivated mainly in North and Northeast brasilian regions. Diseases caused by Meloidogyne species are one main causers damages...
Biofertilizers in production of vine Isabel
The "Isabel" vine is one of the most important crops both for the agricultural sector and for subsistence of small families. The bovine biofertilizer appears as an alternative to replace the excessive use of chemical fer...