Salinity response of three tomato varieties (Lycopersicon esculentum Mill.)
Main Article Content
Abstract
objective to know the behavior of different tomato varieties
(Lycopersicon esculentum Mill.) exposed to several NaCl
levels, in which INCA 9(1) and Amalia varieties were used,
whose tolerance to salinity is unknown, also because they
have a nice agricultural performance and P-73 indicated as
tolerant. Plants developed in a growth chamber under
hydroponics conditions. Evaluations were performed on
biomass expressed as dry matter and leaf surface at the
beginning and at the end of the trial, relative water content,
stomatal conductance, transpiration, leaf water potential,
osmotic potential, turgor potential and osmotic at full turgor
potential, and CO2 assimilation rate; besides, relative growth
rate, net assimilation rate and resistance index were estimated.
When analyzing varietal behavior, it was indicated that, under
normal nutritional conditions, they generally presented a similar
growth rate and NaCl applied to culture medium caused
growth disorders. It was observed that Amalia showed a similar
answer to P-73 and it was also appreciated that the varieties
differed by its gas exchange capacity expressed as stomatal
conductance and CO2 assimilation rate, as well as water status
variables, like relative water content, transpiration and leaf
water potential, osmotic potential, turgor potential and osmotic
at full turgor potential, that were negatively affected by NaCl,
although this depression was more marked in some varieties
than in others, coinciding the behavior of Amalia with P-73. It
was observed that the three varieties carried out osmotic
adjustment.
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.