Evaluation of salinity tolerance in cowpea bean using variables related with nodulation and foliar nitrogen accumulation
Main Article Content
Abstract
of 12 cowpea (Vigna unguiculata L. Walp.) varieties by using
some variables relative to nodule formation, aerial dry mass
and its nitrogen content, two simultaneous experiences in
saline and not saline soils were carried out. A completely
randomize block design with three repetitions was used in both
experiences. The aerial and roots dry mass, number of nodules
per plants, number of effective nodules, nodules dry mass and
nitrogen content in aerial mass were evaluated at 40 days after
sowing. Using the measured results the tolerance index to
salinity in all varieties was calculated, which were classified
using a Cluster analysis of Complete Linkage, based on
Euclidian distance. The results evidenced the affectation of all
varieties sowed on saline soil when the nodules number, its
dry mass, as well as the aerial dry mass and its nitrogen content
were evaluated, but the main differences among genotypes,
and the tendency to saline tolerance were found by using the
cluster analysis, through which varieties were classified in two
different groups. Into the first group, eight genotypes with
marked tolerance characteristic to saline stress were located,
while the others four varieties were categorized as susceptible,
being situated into the second group.
Article Details
Those authors who have publications with this journal accept the following terms of the License Attribution-NonCommercial 4.0 International (CC BY-NC 4.0):
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
The journal is not responsible for the opinions and concepts expressed in the works, they are the sole responsibility of the authors. The Editor, with the assistance of the Editorial Committee, reserves the right to suggest or request advisable or necessary modifications. They are accepted to publish original scientific papers, research results of interest that have not been published or sent to another journal for the same purpose.
The mention of trademarks of equipment, instruments or specific materials is for identification purposes, and there is no promotional commitment in relation to them, neither by the authors nor by the publisher.